JP4132199B2 - Clothes pattern making method and clothes pattern making system using this method - Google Patents

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となる。
【００３１】
上記（１）式は、標準体型Ｍの画像情報に射影関数Ｔを作用させることにより、また、標準体型Ｍ及び型紙Ｄの画像情報に射影関数Ｓを作用させることにより標準衣服Ｃの三次元画像が得られることを示している。また、（２）式は、標準衣服Ｃの画像情報に射影関数Ｔの逆関数Ｔ~¹を作用させて得られる標準体型モデルＭの画像情報に更に射影関数Ｆを作用させることにより、個人体型モデルＭ′の三次元画像が得られることを示し、（３）式は、（２）式で得られる個人体型Ｍ′の画像情報に射影関数Ｔを作用させることにより、特製衣服Ｃ′の三次元画像が得られることを示している。また、（４）式は、（３）式で得られた特製衣服Ｃ′の画像情報に型紙の制約条件（平面性、左右対称性、部分的直線製、部分的曲面性、縫合時の整合性等の条件）を加味して射影関数Ｓを作用させることにより型紙Ｄ′の二次元画像が得られることを示している。
【００３２】
図１に戻り、衣服の型紙作成装置１のブロック構成について説明する。
同図に示す衣服の型紙作成装置１は、衣服の型紙作成処理を集中制御する制御部２、衣服の型紙作成プロセスのプログラムや初期データが記憶されたＲＯＭ３、入力情報や画像作成処理における演算結果等を一時的な記憶するためのＲＡＭ４、所要のデータを入力する入力部５、型紙作成プロセスにおける種々の情報を表示する表示装置６、型紙作成処理で作成された個人体型モデルや衣服の画像データ及び型紙のデータ等のデータを記憶する外部記憶装置７及びデータを記録する表記録装置８により構成されている。
【００３３】
入力部５は、キーボードやマウスからなり、顧客の体型に適した衣服の型紙を作成するために必要な情報（例えば個人体型モデルＭ′の三次元画像を作成するための顧客の体型情報、衣服の型紙に関する情報、衣服の生地に関する情報及び衣服の縫製に関する情報）や各種のコマンドを入力するものである。
【００３４】
表示装置６は、ＣＲＴ、液晶表示デバイス、プラズマ表示パネル等の電子ディスプレイデバイスから構成され、衣服の型紙を作成するために必要な種々の情報（体型情報、衣服に関する情報その他のＱ＆Ａ方式におけるコマンド）等を入力するための表示を行うとともに、これらの情報に基づいて作成された顧客の体型に適した衣服やこの衣服を構成する複数個の型紙を表示するものである。
【００３５】
外部記憶装置７は、種々の情報の書込及び読出が可能な装置であり、入力部５を介して入力された種々の情報（上述の顧客の体型情報や衣服の型紙情報、生地情報及び縫製情報等）、作成された個人体型モデル及び特製衣服の画像情報並びにその特製衣服を構成する複数個の型紙の画像情報を記憶するものである。外部記憶装置７には、予め直立状態の標準体型モデルＭ（図２の参照）の三次元画像情報が記憶されている。標準体型モデルＭの三次元画像情報は、例えば実際に人物を三次元曲面形状測定装置等で測定して得られるデータを用いて作成され、外部記憶装置７には、手、足、頭等の複数のパーツの画像に分割して記憶されている。
【００３６】
記録装置８はプリンタからなり、作成された個人体型モデルＭ′や特製衣服Ｃ′等の画像、この特製衣服Ｃ′を構成する複数個の型紙Ｄ′の画像等を記録紙に出力するものである。
【００３７】
制御部２は、上述した型紙作成方法に従って、仮想空間上で顧客の体型に適した衣服Ｃ′の三次元画像の作成及びこの衣服を構成する複数個の型紙Ｄの二次元画像の作成を行うものである。
【００３８】
制御部２は、内部に標準衣服Ｃ′の三次元画像を作成する標準衣服画像作成部２０１、個人体型モデルＭ′の三次元画像を作成するモデル画像作成部２０２、第１の射影関数Ｔを算出する第１射影関数演算部２０３、第２の射影関数Ｆを算出する第２射影関数演算部２０４、特製衣服Ｃ′の三次元画像を作成する特製衣服画像作成部２０５及び特製衣服Ｃ′の三次元画像から当該特製衣服Ｃ′を構成する複数個の型紙Ｄ′の画像を作成する型紙作成部２０６を備えている。
【００３９】
標準衣服画像作成部２０１は、例えば特開平８−４４７８５号（衣服の立体形状形成方法）に開示された方法で標準衣服Ｃの三次元画像を作成する。この画像作成方法の詳細説明は省略するが、その概要は、衣服を構成する複数個の型紙Ｄをモデルの周囲の対応位置に配置し、各型紙をモデルに押し付けるようにして衣服の仮の立体形状を形成した後、各型紙同士を縫製して衣服を作成する手順をシミュレートする方法で標準衣服Ｃの三次元画像を生成するものである。
【００４０】
標準衣服画像作成部２０１は、入力部５から入力された衣服の種類（ワンピース、ツーピース等の衣服の形状の種類）に基づきＲＡＭ４に外部記憶装置７から対応する標準衣服Ｃの型紙Ｄ（複数枚のパーツからなる）の画像データを読み出すとともに、標準体型モデルＭの画像データを読み出す。なお、標準体型モデルＭの三次元画像は、例えば実際のモデルを三次元曲面形状計測装置で測定して得られる三次元距離データを用いて作成されている。
【００４１】
そして、メモリ空間上で標準体型モデルＭの回りの所定位置に各型紙Ｄを配置し、所定のバネ力で当該バネ力が所定の閾値以下となるまで各型紙Ｄを互いに引き寄せて標準体型モデルＭを包み込み、この状態で型紙Ｄ同士を縫製するように画像処理を行って標準衣服Ｃの三次元画像を作成する。この画像処理においては、各型紙Ｄは、入力部５から入力された生地情報に基づき変形され、縫製情報に基づいて縫製処理が行われる。そして、この標準衣服の三次元画像は外部記憶装置７に記憶される。
【００４２】
モデル画像作成部２０２は、ＲＡＭ４に外部記憶装置７から標準体型モデルＭの画像データを読出し、この画像データに入力の部５から入力された顧客の体型情報に基づいて所要の変形処理を施して個人体型モデルＭ′の三次元画像を作成する。そして、この個人体型モデルＭ′の三次元画像も外部記憶装置７に記憶される。
【００４３】
なお、個人体型モデルＭ′の三次元画像は、例えば全体的に拡大（又は縮小）する場合は、図６に示すように、標準体型モデルＭの三次元画像を全体的に所定の比率で拡大（又は縮小）することにより作成され、部分的に拡大（又は縮小）する場合は、図７に示すように、標準体型モデルＭの三次元画像の対応する部分を（拡大又は縮小）するとともに、関連する部位をＦＦＤ法（Free Form Deformation）により所要のサイズに拡大（又は縮小）することが行われる。
【００４４】
なお、図６は、標準体型モデルＭの身長１６０ｃｍを１８０ｃｍに変更して個人体型モデルＭ′を作成する場合の例で、標準体型モデルＭのｙ軸方向の長さＴが１．１２５（＝１８０／１６０）倍の長さに変更されるとともに、両腕、両足、バスト、ウェスト、ビップの各部位のサイズが１．１２５倍される。また、図７は、標準体型モデルＭの肩幅を６０ｃｍから１００ｃｍに拡大して個人体型モデルＭ′を作成する場合の例で、肩の両端の制御点Ａ，Ｂ（ＡＢ間の長さは６０ｃｍに相当）が制御点Ａ′，Ｂ′（Ａ′Ｂ′間の長さは１００ｃｍに相当）に変更されるとともに、胸部の制御点Ｃ，ＤがＦＦＤ法によって算出される制御点Ｃ′，Ｄ′に変更される。
【００４５】
第１射影関数演算部２０３は、標準衣服画像作成部２０１で作成された標準衣服Ｃの画像データと標準体型モデルＭの画像データとを用いて第１の射影関数Ｔを算出する。標準体型モデルＭの三次元画像は、上述したように三角パッチによるサーフェースモデルで表現されている。標準体型モデルＭを三角パッチによるサーフェースモデルで表現するのは、少ないデータ数でモデルの体型を正確に表現するためである。一方、標準衣服Ｃの三次元画像は、上述したように、四角格子が整然と並んだ規格格子で分割され、衣服の面内には複数個の格子点が設けられている。標準衣服Ｃの三次元画像を四角格子で格子形成しているのは、衣服の素材である布構造（横糸、縦糸）に近く、型紙の格子化に適し、仮想空間上での型紙の縫製処理が容易である点を考慮したものである。
【００４６】
第１射影関数演算部２０３は、標準衣服Ｃの任意の格子点ｃi（ｉ＝１，２，…ｎ）について当該格子点ｃiに最近接する標準体型モデルＭの格子点ａi（ｉ＝１，２，…ｎ）を算出し、格子点ｃiの格子点ａiに対する位置関係の情報を算出する。格子点ｃiに対する格子点ａiは、当該格子点ｃiの法線方向と逆方向の法線ベクトルを有する標準体型モデルＭの格子点ａiを算出することにより行われる。なお、格子点ｃiの法線方向に格子点ａiが存在しなければ、図８に示すように、当該格子点ｃiを中心とする立方体形状の微小枠Ｑを設定し、この微小枠の寸法を拡大させて最初に微小枠に含まれることとなる標準衣服Ｃの格子点ｃiの法線方向と逆方向の法線ベクトルを有する標準体型モデルＭの格子点ａiが当該格子点ｃiに対応する格子点となる。なお、格子点ｃiと標準体型モデルＭの格子点との距離を演算し、最短距離を有する標準体型モデルＭの格子点を格子点ｃiに対する格子点ａiとするようにしてもよい。
【００４７】
格子点ｃ１と格子点ａ１との位置関係の情報は、例えば格子点ｃ１の座標と格子点ａ１の座標とを対にして結合したもので、第１射影関数演算部２０３は、全ての格子点ｃi（ｉ＝１，２，…ｎ）について対応する標準体型モデルＭの格子点ａi（ｉ＝１，２，…ｎ）を算出し、その座標データの対応関係をリスト形式で出力する。なお、格子点ｃiと格子点ａiとの位置関係の情報を、両格子点間のベクトル的な距離で表現してもよい。第１射影関数演算部２０３で算出された第１の射影関数Ｔは外部記憶装置７に記憶される。
【００４８】
第２射影関数演算部２０４は、標準体型モデルＭの画像データとモデル画像作成部２０２で作成された個人体型モデルＭ′の画像データとを用いて第２の射影関数Ｆを算出する。個人体型モデルＭ′の三次元画像は標準体型モデルＭの三次元画像を顧客の体型情報に基づいて変形したものであるから、標準体型モデルＭの三次元画像を構成する複数個の三角パッチの各格子点ａi（ｉ＝１，２，…ｎ）とこれに対応する個人体型モデルＭ′の三次元画像を構成する複数個の三角パッチの格子点ａi′とは既知である。従って、第２射影関数演算部２０４は、図９に示すように、標準体型モデルＭの三次元画像を構成する格子点ａiとこれに対応する個人体型モデルＭ′の三次元画像を構成する格子点ａi′との位置関係の情報を第２の射影関数Ｆとして算出する。格子点ａiと格子点ａiとの位置関係の情報は、例えば格子点ａiの座標と格子点ａi′の座標とを対にして結合したもので、第２射影関数演算部２０３は、第１射影関数Ｔと同様に両格子点ａi，ａi′の座標データの対応関係をリスト形式で出力する。なお、格子点ａiと格子点ａi′との位置関係の情報を、両格子点間のベクトル的な距離で表現してもよい。第２射影関数演算部２０４で算出された第２の射影関数Ｆも外部記憶装置７に記憶される。
【００４９】
特製衣服画像作成部２０５は、第１，第２の射影関数Ｔ，Ｆを用いて標準衣服Ｃの三次元画像を変形することにより特製衣服Ｃ′の三次元画像を作成する。すなわち、特製衣服画像作成部２０５は、標準衣服Ｃの三次元画像を構成する各格子点ｃi（ｉ＝１，２，…ｎ）に上記（３）式の演算を施して特製衣服Ｃ′の三次元画像を構成する格子点ｃi′を算出する。特製衣服画像作成部２０５で算出された特製衣服Ｃ′の画像データは、外部記憶装置７に記憶される。
【００５０】
型紙作成部２０６は、特製衣服画像作成部２０５で作成された特製衣服Ｃ′（三次元画像）を複数個の型紙Ｄ′（三次元画像）の部分に分離するとともに、三次元形状の各型紙Ｄ′の部分を二次元形状に展開して平面的な型紙Ｄ″を作成する。このとき、例えば衣服の前身頃の部分のように、左右の対称性を保存する必要のある型紙については、図１０に示すように、対称線に対して左右が対称となる平均的な平面形状が決定され、この平面形状に基づいて型紙Ｄ′が展開される。なお、図１０は、左右対称性の制約条件の元に各格子点ｃi間の距離（長さ）を保存しつつ前身頃の三次元形状の型紙Ｄ′を二次元形状の型紙Ｄ″に展開したものである。
【００５１】
更に、図１１に示すように、元の型紙Ｄにおいて直線であった部分ｄ１に対応する部分ｄ１″は直線となるように、曲線であった部分ｄ２に対応する部分ｄ２″はその曲線の曲率変化が保存された曲線となるように、型紙Ｄ″の二次元形状が修正されて最終的な型紙Ｄ″の形状が決定される。
【００５２】
次に、衣服の型紙作成装置１の型紙作成手順について、図１２に示すフローチャートに従って説明する。
【００５３】
まず、仮想空間上で標準衣服を構成する複数個の型紙Ｄを標準体型モデルＭに押し付けるようして当該衣服の生地特性に基づき所要の変形を行い、当該衣服の縫製特性に基づき各型紙Ｄを縫製して標準体型モデルＭに着せ付けられた標準衣服Ｃの三次元画像が作成される（ステップ＃１）。続いて、標準衣服Ｃを構成する各格子点ｃiに対応する標準体型Ｍを構成する格子点ａiが算出され、更に両格子点ｃi，ａiの位置関係の情報が第１の射影関数Ｔとして算出される（ステップ＃３）。
【００５４】
続いて、入力部５から入力された顧客の体系情報に基づき標準体型モデルＭの三次元画像を変形して個人体型モデルＭ′の三次元画像が作成され（ステップ＃５）、更にこの個人体型モデルＭ′の三次元画像を構成する各格子点ａi′と標準体型モデルＭの三次元画像を構成する当該格子点ａi′に対応する格子点ａiとの位置関係の情報が第２の射影関数Ｆとして算出される（ステップ＃７）。
【００５５】
続いて、第１の射影関数Ｔ及び第２の射影関数Ｆに基づき標準衣服Ｃの三次元画像を構成する各格子点ｃi′を変位させて個人体型モデルＭ′に着せ付けた特製衣服Ｃ′の三次元画像が作成される（ステップ＃９）。そして、この特製衣服Ｃ′の三次元画像を当該衣服を構成する複数個の型紙Ｄ′の三次元画像に分離するとともに、各型紙Ｄ′の三次元画像を型紙の対称性、部分的直線性及び部分的曲線性の制約条件の元に二次元画像に展開して所望の型紙Ｄ″が作成される（ステップ＃１１）。
【００５６】
図１３は、コンピュータネットワークを用いた型紙作成システムの一実施の形態を示すブロック構成図である。
【００５７】
同図に示す型紙作成システムは、インターネットやイントラネット等のネットワークを介してサーバー２０とクライアント３０とが双方向に通信可能に構成されている。
【００５８】
この実施形態では、サーバー２０は、ネットワークサーバー２１、アプリケーションサーバー２２及びデータベースサーバー２３で構成されている。ネットワークサーバー２１は、クライアント３０との双方向通信を制御し、データベースサーバー２３は、標準体型モデルＭの三次元画像のデータや標準衣服Ｃを構成する型紙の画像データを記憶している。また、アプリケーションサーバー２２は、上述の標準衣服作成部２０１〜型紙作成部２０６にそれぞれ相当する標準衣服画像作成部２２１、モデル画像作成部２２２、第１射影関数演算部２２３、第２射影関数演算部２２４、特製衣服画像作成部２２５及び型紙作成部２２６を有し、クライアント３０のアクセスに応じて基本画面に関する情報をネットワークサーバー２１を介してクライアント３０に送信するとともに、この基本画面に従ってクライアント３０から送信される各種の情報を受信し、これらの受信情報とデータベースサーバー２３から読み出した各種の情報とに基づきクライアント３０の要求する衣服の三次元画像とその衣服を構成する複数の型紙の二次元画像とを作成するものである。
【００５９】
なお、基本画面は、クライアント３０が自己の体型に合った特製の衣服をオーダーする際の必要な情報（例えば自己の体型に関する情報や生地、色柄、種類（ワンピース、ツーピース等の種類）等の衣服に関する情報を選択入力するための画面で、クライアント３０は、図略のマウスを用いて基本画面に表示された入力項目を選択的に指示することにより衣服に関する情報等を入力することができるようになっている。また、クライアント３０の体型に関する情報は、図略のキーボードを用いて直接、数値を入力することにより行われる。
【００６０】
クライアント３０は、ネットワークに接続されたユーザー端末３１とこのユーザー端末に電気的に接続された表示装置３２を備えている。クライアント３０は、ユーザー端末３１からネットワークを介してサーバー２０にアクセスすると、サーバー２０から基本画面に関する情報が送信され、この基本画面が表示装置３２に表示される。従って、クライアント３０は、この基本画面に従ってキーボード、マウス等を操作することにより所望の情報を選択入力することで、型紙作成のサービスを受けることができる。
【００６１】
次に、図１３に示す型紙作成システムにおける型紙作成手順について、図１４、１５のフローチャートに従って説明する。
【００６２】
まず、オペレータがクライアント３０のキーボード等の入力装置を操作してサーバー２０のホームページにアクセスすると、これを受けてサーバー２０側で顧客の体型に関する情報を入力するための画面（体型入力画面）に関する情報がクライアント３０に送信される（ステップ＃２１，＃４１）。
【００６３】
クライアント３０側では、この体型入力画面に関する情報に基づき表示装置３２上に体型入力画面が表示され、この表示内容に従ってオペレータが顧客の体型情報をキーボード、マウス等を用いて入力する（ステップ＃２３）。この入力された顧客の体型情報は、ネットワークを介してサーバー２０側に送信され、アプリケーションサーバー２２のＲＡＭ（図略）に一時的に記憶されるとともに、基本画面に関する情報がクライアント３０側に送信される（ステップ＃４３）。
【００６４】
続いて、クライアント３０側では、この基本画面に関する情報に基づき表示装置３２上に基本画面が表示され、オペレータがこの基本画面に従って所望の衣服の生地、色柄、種類等の情報を選択入力するととともに、当該衣服の型紙作成を指示すると（ステップ＃２５，＃２７）、衣服に関する情報及び型紙作成指示等の各種の情報がサーバー２０側に送信される（ステップ＃２９）。
【００６５】
一方、サーバー２０では、クライアント３０から送信された各種の情報を受信し、図１２のフローチャートで説明したステップ＃１〜＃１１に相当するステップ＃４７〜＃５７の処理を実行して顧客の体型に適した特製の衣服の立体画像が作成されるとともに、この衣服を構成する型紙の平面画像が作成される。そして、この特製の衣服の立体画像及び型紙の平面画像の情報は、ネットワークを介してクライアント３０に送信され（ステップ＃５９）、クライアント３０側では、特製の衣服の立体画像及び型紙の平面画像の情報が受信されると（ステップ＃３１）、これらの画像が表示装置３２に更新的に表示される（ステップ＃３３）。
【００６６】
これにより、オペレータは、自分が選択した衣服の自己の体型に適した立体的形状を確認できるとともに、その衣服の型紙を簡単に取得することができる。そして、もし、希望の衣服形状が得られない場合は、自己の体型情報や衣服に関する情報を修正して再度、型紙作成を指示することにより、所望の形状の衣服とその衣服の型紙を容易に取得することができる。
【００６７】
なお、上記実施の形態では、顧客の体型情報に基づき標準体型モデルＭを変形して個人体型モデルＭ′を得るようにしていたが、三次元曲面形状測定装置による顧客の体型の実測データに基づき個人体型モデルＭ′の三次元画像を作成するようにしてもよい。あるいは、標準体型モデルＭだけでなくこれに類似した体型の複数の体型モデルの三次元画像を予め用意しておき、顧客の体型情報に基づいて最も類似した体型モデルを選択することにより個人体型モデルＭ′を決定するようにしてもよい。
【００６８】
上記のように、ＣＧの仮想空間上で標準体型モデルＭに対する標準衣服Ｃを作成するとともに、顧客の体型に合わせた個人体型モデルＭ′を作成し、標準体型モデルＭに対する個人体型モデルＭ′の変位特性を標準衣服Ｃに反映して個人体型モデルＭ′に対する特製衣服Ｃ′を作成し、この特製衣服Ｃ′から型紙Ｄ′を作成するようにしたので、顧客の体型に合った衣服の型紙を簡単かつ容易に作成することができる。
【００６９】
これにより、例えばアパレル産業の型紙設計において、各社固有のターゲットとする顧客に適合した衣服の型紙を迅速かつ容易に作成することができる。また、オーダーメードの場合にも採寸時に顧客の体型に合わせた衣服の立体的形状とその衣服の型紙とを得ることができるので、衣服作成の迅速化、低価格化に寄与する。更に、顧客の体型に対応した個人体型モデルＭ′を登録しておくことで、種々の形状の衣服や同一形状の衣服のオーダーに対して迅速に対応することができる。
【００７０】
【発明の効果】
以上、説明したように、本発明によれば、ＣＧ画像を用いて個人体型に適した衣服の型紙を作成する衣服の型紙作成方法であって、標準体型モデルの三次元画像と標準衣服を構成する複数の型紙の三次元画像とを用いて当該標準体型モデルに対応する標準衣服の三次元画像を作成するとともに、標準体型モデルと標準衣服との対応関係を示す第１の射影関数を算出する一方、標準体型モデルの三次元画像を個人体型に関する情報に基づき変形して個人体型モデルの三次元画像を作成するとともに、標準体型モデルと個人体型モデルとの対応関係を示す第２の射影関数を算出し、第１及び第２の射影関数を用いて標準衣服の三次元画像を変形することにより個人体型モデルに対応した衣服の三次元画像を作成し、この衣服の三次元画像に基づいて当該衣服を構成する複数の型紙を作成するようにしたので、任意の体型に対応した好適な形状の衣服の型紙を簡単かつ容易に作成することができる。そして、これにより、オーダーメードの場合にも採寸時に顧客の体型に合わせた衣服の立体的形状とその衣服の型紙とが得られ、迅速に衣服を作成することができる。
【００７１】
また、個人体型モデルに対応した衣服の三次元画像に基づき当該衣服を構成する複数の型紙を作成する際、型紙の対称性、部分的直線性及び部分的曲線性を制約条件として各型紙の三次元画像を二次元画像に変換するようにしたので、実用性の高い正確な型紙を得ることができる。
【００７２】
また、コンピュータシステムで型紙作成システムを構築するようにしたので、個人ユーザーでも簡単に任意の体型にマッチした衣服の型紙が容易に得られ、一般ユーザーへの衣服作成支援システムとして有効に活用することができる。
【図面の簡単な説明】
【図１】本発明に係る衣服の型紙作成システムの一実施形態を示すブロック構成図である。
【図２】標準体型モデルに対する標準衣服を作成するプロセスを示す図である。
【図３】標準体型モデルとこの標準体型モデルを変形して得られる個人体型モデルを示す図で、（ａ）は正面図、（ｂ）は側面図である。
【図４】標準衣服を変形して個人体型モデルに対する特性衣服を作成するプロセスを示す図である。
【図５】本発明に係る型紙作成方法を数学モデルで表した図である。
【図６】標準体型モデルの画像を全体的に拡大して所望の個人体型モデルの画像を作成する方法を説明するための図である。
【図７】標準体型モデルの画像の一部に拡大して所望の個人体型モデルの画像を作成す方法を説明するための図である。
【図８】第１の射影関数Ｔを算出する方法を説明するための図である。
【図９】第２の射影関数Ｆを算出する方法を説明するための図である。
【図１０】前身頃の部分の三次元画像を型紙の左右対称性の制約条件の元に展開して得られる前身頃の型紙を示す図である。
【図１１】図１０に示す前身頃の型紙に部分的直線性及び部分的曲線性の制約条件に基づく修正を施して最終的に得られる型紙を示す図である。
【図１２】本発明に係る型紙作成システムの型紙作成手順を示すフローチャートである。
【図１３】コンピュータネットワークを用いた型紙作成システムの一実施の形態を示すブロック構成図である。
【図１４】コンピュータネットワークを用いた型紙作成システムにおける型紙作成手順を示すフローチャートである。
【図１５】コンピュータネットワークを用いた型紙作成システムにおける型紙作成手順を示すフローチャートである。
【符号の説明】
１ 衣服の型紙作成装置
２ 制御部
２０１，２２１ 標準衣服画像作成部（標準衣服画像作成手段）
２０２，２２２ モデル画像作成部（モデル画像作成手段）
２０３，２２３ 第１射影関数演算部（第１の演算手段）
２０４，２２４ 第２射影関数演算部（第２の演算手段）
２０５，２２５ 特製衣服画像作成部（衣服画像作成手段）
２０６，２２６ 型紙作成部（型紙作成手段）
３ ＲＯＭ
４ ＲＡＭ
５ 入力部（入力手段）
６，３２ 表示装置（表示手段）
７ 外部記憶装置（記憶手段）
８ 記録装置
２０ サーバー
２１ ワークサーバー（サーバー側通信手段）
２２ アプリケーションサーバー
２３ データベースサーバー
３０ クライアント
３１ ユーザー端末（ユーザー側通信手段）
Ｃ 標準衣服（三次元形状）
Ｃ′ 特製衣服（三次元形状）
Ｄ 標準衣服を構成する型紙
Ｄ′ 特製衣服を構成する型紙
Ｄ″ 特製衣服を構成する型紙（平面形状）
Ｍ 標準体型モデル（三次元形状）
Ｍ′ 個人体型モデル（三次元形状）[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a method for creating a garment pattern in a garment manufacturing process, and in particular, a garment suitable for a customer's body shape (so-called custom-made garment) using a three-dimensional image by computer graphics (hereinafter abbreviated as CG). ) For creating a pattern for clothes and a pattern creation system for clothes using this method.
[0002]
[Prior art]
Conventionally, apparel makers have created clothing pattern using CAD (Computer Aided Desighn) dedicated to apparel. In this CAD system, a plurality of reference lines are set in advance on a standard garment pattern, and a displacement amount associated with a change in the size of the clothes on the reference line is set in advance. The pattern is created by changing the reference line of the standard pattern according to the specified size.
[0003]
[Problems to be solved by the invention]
In the above conventional pattern making method, a desired pattern is created by geometrically deforming the pattern with reference to a preset standard pattern such as S, M, L, and LL. For each standard body shape section, only rough pattern deformation within that section can be made, and a pattern that best matches the customer's body shape can be created easily and easily (that is, making clothes according to the customer's custom made easily and easily) Easy to do) was difficult.
[0004]
Moreover, since the conventional CAD system is a stand-alone system built exclusively for apparel manufacturers, the system is expensive, requires a specific operator who is familiar with the CAD system, and is easy for non-experts And it was difficult to easily create a pattern of clothes of any size. Needless to say, general users are not in a situation where they can use the CAD system when making their own clothes, so if they have a pattern, they can obtain an accurate pattern of the clothing that best suits their body shape. It is difficult, and you have to rely on custom-made specialty stores.
[0005]
SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and a garment pattern making method capable of easily and easily obtaining an accurate pattern pattern constituting a garment suitable for any body shape using a CG three-dimensional image, and The present invention provides a pattern making system for clothes using this method.
[0006]
[Means for Solving the Problems]
The invention according to claim 1 is a clothing pattern creating method for creating a clothing pattern suitable for a personal figure using a CG image, and a three-dimensional image of a standard figure model created in advance and the pattern figure created in advance. Using a three-dimensional image of a plurality of patterns constituting standard clothing corresponding to the standard figure model, the image of each pattern is transformed so as to be attached to the corresponding part of the standard figure model, and each modified pattern A first step of creating a three-dimensional image of the standard garment by synthesizing the image based on preset sewing information, and a three-dimensional image of the standard garment and a three-dimensional image of the standard body model. A second step of calculating a first projection function indicating a correspondence relationship between the standard clothes and the standard figure model, and transforming the three-dimensional image of the standard figure model based on information about the personal figure inputted in advance A third step of creating a three-dimensional image of the individual body model, and a fourth step of calculating a second projection function indicating a correspondence relationship between the three-dimensional image of the standard body model and the three-dimensional image of the individual body model A fifth step of creating a three-dimensional image of clothes corresponding to the individual body model by transforming the three-dimensional image of the standard clothes using the first and second projection functions, And a sixth step of creating a plurality of patterns constituting the clothing based on the three-dimensional image of the clothing corresponding to the individual body model.
[0007]
Further, according to the second aspect of the present invention, in the method for creating a pattern for a garment, the plurality of stencils constituting the garment suitable for the individual body model is obtained by displaying a three-dimensional image of each stencil constituting the garment with the symmetry of the pattern. It is created by converting partial linearity and partial curvilinearity into a two-dimensional image as a constraint condition.
[0008]
According to a third aspect of the present invention, there is provided a garment pattern creation system for creating a garment pattern suitable for an individual body shape using a CG image, wherein the three-dimensional image data of a standard body model created in advance and A storage means for storing data of three-dimensional images of a plurality of patterns constituting standard clothing corresponding to the created standard figure model, a plurality of three-dimensional images of the standard figure model and a plurality of pieces constituting the standard clothes Using the three-dimensional image of the pattern, the image of each pattern is transformed so as to be attached to the corresponding part of the standard body model, and the image of each modified pattern is synthesized based on preset sewing information By using the standard clothing image creating means for creating the three-dimensional image of the standard clothing and the three-dimensional image of the standard clothing and the three-dimensional image of the standard body model, A first computing means for calculating a first projection function indicating a correspondence relationship between the first body function, an input means for inputting information on the individual body shape, and a three-dimensional image of the standard body model based on the input information on the individual body shape. Model image creation means for creating a three-dimensional image of the individual body model by deformation, and a second projection function indicating a correspondence relationship between the three-dimensional image of the standard body model and the three-dimensional image of the individual body model Clothes image creation means for creating a 3D image of clothes corresponding to the individual body model by deforming the 3D image of the standard clothes using the first and second projection functions. And a paper pattern creating means for creating a plurality of paper patterns constituting the clothing based on the three-dimensional image of the clothing corresponding to the individual body model.
[0009]
According to a fourth aspect of the present invention, in the garment pattern creating system, a standard garment, a personal body model, a process of creating each three-dimensional image of the garment corresponding to the personal body model, and a garment corresponding to the personal body model are provided. The image forming apparatus includes display means for displaying a process for creating a plurality of pattern papers.
[0010]
In addition, the invention according to claim 5 creates a three-dimensional image of virtual clothes corresponding to the user based on information on the body shape of the user and information on clothes input from the user via the network, A server for creating a plurality of patterns constituting the clothing based on the clothing image and providing the user with the pattern is provided.The server receives information related to the user's body shape and information transmitted from the user, and transmits server-side communication means for transmitting the information on the created pattern to the user. Based on the storage means for storing the original image data and the three-dimensional image data of a plurality of patterns constituting standard clothes corresponding to the standard body model created in advance, and information on clothes transmitted from the user Using the three-dimensional image of the plurality of patterns constituting the standard clothing selected in the above and the three-dimensional image of the standard body model, the image of each pattern is deformed so as to be attached to the corresponding part of the standard body model In addition, the three-dimensional image of the standard garment is synthesized by synthesizing the image of each pattern after deformation based on preset sewing information. A first projection function that indicates a correspondence relationship between the standard clothing and the standard body model is calculated using the standard clothing image creation means to be created, the three-dimensional image of the standard clothing, and the three-dimensional image of the standard body model. 1 calculation means, model image creation means for creating a 3D image of the user body model by transforming the 3D image of the standard body model based on information relating to the individual body shape transmitted from the user, and the standard body model Second calculation means for calculating a second projection function indicating a correspondence relationship between the three-dimensional image of the user body model and the three-dimensional image of the user body model, and using the first and second projection functions, Clothes image creation means for creating a 3D image of clothes corresponding to the user body model by deforming the 3D image, and 3D of clothes corresponding to the user body model It is obtained by a paper pattern generating means for generating a plurality of paper constituting the garment on the basis of the image.
[0012]
Claims6In the above described garment pattern making system, the user transmits information related to the user's body shape and information related to the clothing, and transmits information related to the user's body shape and information related to the clothing. User-side communication means for receiving the pattern information transmitted from the user.
[0013]
Claims7The invention described in the above stencil pattern creating system, the stencil pattern creating means includes a plurality of stencil patterns constituting the garment corresponding to the user body model, a three-dimensional image of each stencil pattern constituting the garment, a symmetry of the stencil pattern, It is created by converting partial linearity and partial curvilinearity into a two-dimensional image as a constraint condition.
[0014]
According to the garment pattern creating method or the garment pattern creating system, first, a previously created 3D image of a standard body model (for example, a 3D model image of a human body having a standard body shape) is created in advance. A three-dimensional image of a plurality of patterns constituting standard clothing corresponding to the standard body model is placed opposite to the corresponding part of the standard body model, and the three-dimensional image of each pattern is placed on the corresponding part of the standard body model. After being deformed so as to be attached, a three-dimensional image of a standard garment is created by synthesizing based on preset sewing information. Then, a first projection function indicating the correspondence between the standard clothing and the standard body model is calculated using the three-dimensional image of the standard clothing and the three-dimensional image of the standard body model. For example, when the standard body model is represented by a three-dimensional image composed of triangular patches and the standard clothing is represented by a three-dimensional image composed of quadrangular patches, the first projective function includes a plurality of parts constituting the three-dimensional image of the standard body model. Is calculated as a parameter representing the correspondence relationship between the vertex coordinate group of and the plurality of vertex coordinate groups constituting the three-dimensional image of the standard clothing.
[0015]
Subsequently, the three-dimensional image of the standard figure model is deformed based on the information relating to the personal figure (for example, the size representing the user's figure) inputted in advance, and the three-dimensional image of the personal figure model is created. A second projection function indicating the correspondence between the three-dimensional image and the three-dimensional image of the standard body model is calculated. The second projection function is calculated as a parameter indicating the displacement amounts of a plurality of vertex coordinate groups constituting the three-dimensional image of the standard body model.
[0016]
Subsequently, by deforming the three-dimensional image of the standard clothes using the first and second projection functions, a three-dimensional image of the clothes corresponding to the individual body model is created. That is, the three-dimensional image of the garment is deformed by applying a displacement based on the displacement amount obtained by transforming the standard body model into the individual body model for a plurality of vertex coordinate groups constituting the three-dimensional image of the standard garment.
[0017]
Then, based on the three-dimensional image of the clothes corresponding to the individual body model, a plurality of patterns constituting the clothes are created. That is, a three-dimensional image of clothes corresponding to the individual body model is decomposed into a plurality of patterns constituting the clothes, and each pattern is converted into a two-dimensional image to create a pattern. At this time, each pattern constituting the clothes corresponding to the individual body model decomposes the three-dimensional image of the clothes into a three-dimensional image of each pattern, and restricts the symmetry, partial linearity and partial curvilinearity of the pattern. It is created by converting to a two-dimensional image as a condition.
[0018]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 is a block configuration diagram showing an embodiment of a clothing pattern making system according to the present invention.
[0019]
The garment pattern creation system shown in FIG. 1 is configured as a stand-alone system, and creates a garment pattern according to a customer's individual body shape using a CG three-dimensional image. As will be described later, the pattern creating apparatus 1 causes a human body model (three-dimensional image; hereinafter referred to as a personal body model) to match a customer's individual body shape in a three-dimensional virtual space by CG, and this human body model is displayed. On the other hand, a desired garment (three-dimensional image) is created, and a plurality of stencils constituting the garment are generated from the garment, so that the stencil can be easily and easily created compared with a conventional CAD system dedicated to apparel. As a tool to support pattern design in the apparel industry that designs clothing, and to support pattern design in clothing order-made systems in department stores, boutiques, and mail order, and support tools for the recent new form of factory boutiques It can be used effectively.
[0020]
Note that the 3D image here corresponds to, for example, an image obtained by photographing a human model with an appropriate amera angle and lighting with a camera, and allows the human posture to be viewed stereoscopically from various angles. It can be done.
[0021]
Here, before explaining the configuration of the clothing pattern making apparatus 1, the outline of the pattern making method of the pattern making apparatus 1 will be briefly described with reference to FIGS.
[0022]
The pattern making apparatus 1 includes a plurality of patterns constituting data of a three-dimensional image of a standard body model (hereinafter referred to as a standard body model) and clothes (hereinafter referred to as standard clothes) according to the standard body model. As shown in FIG. 2, each pattern D (which is planar in the virtual space) constituting the standard clothing C is standardized on the CG virtual space. By pressing against the corresponding part of the body model M and deforming it to the required shape, and connecting these pattern paper D (transformed into a three-dimensional image) based on a predetermined sewing condition, it is attached to the standard body model M. A three-dimensional image of the standard clothes C is created. Then, a first projection function T indicating the correspondence between the standard figure model M and the standard clothes C is calculated using both three-dimensional images.
[0023]
The first projection function T represents, for example, a three-dimensional image of the standard body model M by a surface model using a triangular patch, while the three-dimensional image of the standard clothing C is divided by a standard lattice in which square lattices are regularly arranged. If a plurality of grid points are provided in the image, the mutual positional relationship between each grid point of the standard garment C and each triangular patch of the standard model M (that is, the standard garment C with respect to the surface of the standard model M). Relative positional relationship), and the positional relationship between the lattice points of the standard clothing C and the triangular patches of the standard body model M (the coordinates of the lattice points in the coordinates provided in the virtual space and the coordinates of the triangular patches). Specific data indicating the correspondence relationship) is calculated in a list format.
[0024]
Subsequently, as shown in FIGS. 3 (a) and 3 (b), the pattern making apparatus 1 uses a three-dimensional image of the standard body model M as information on the body shape of the customer (for example, height, shoulder width, chest circumference, waist). 3D image of the individual body model M ′ is generated by deformation based on the information on the circumference, waist circumference, etc. (hereinafter referred to as body type information), and the correspondence between the individual body model M ′ and the standard body model M A second projection function F indicating the relationship is calculated.
[0025]
The second projection function F is a positional relationship between the triangular patch that forms the surface of the standard model M and the triangular patch that forms the surface of the individual model M ′ (that is, the surface of the standard model M). This indicates the displacement vector amount of each triangular patch constituting the face), and the positional relationship between the triangular patch of the standard model M and the individual model M ′ (correspondence between the coordinates of both triangular patches in the coordinates provided in the virtual space) Specific data indicating the relationship) is calculated in a list format.
[0026]
Subsequently, as shown in FIG. 4, the pattern making apparatus 1 deforms the standard clothes C using the first and second projection functions, thereby changing the clothes C ′ (hereinafter referred to as the personal body model M ′). A three-dimensional image of this clothing is referred to as a special clothing), and a two-dimensional image of the pattern D 'constituting the clothing' is created using the three-dimensional image of the special clothing C '.
[0027]
FIG. 5 shows the above-mentioned pattern making method as a mathematical model.
In the figure, symbols C, C ′, D, D ′, M, M ′, T, and F are the same as those described above. The projection function S is a function for projecting the image of the pattern clothing D when the image of the standard clothing C is created from the image of the pattern D onto the image of the standard clothing C. The projection function Z is a function for projecting the image of the special clothing C ′ when the image of the special clothing C ′ is created from the image of the special clothing C ′ onto the image of the paper pattern D ′. The projection function G is a function for projecting the image of the standard clothes C necessary for creating the image of the special clothes C ′ from the image of the standard clothes C onto the image of the special clothes C ′.
[0028]
If the projection function G is known, a standard garment C is created for the standard body model M, and if the image of the standard garment C is transformed using the projection function G, an image of the special garment C ′ can be obtained. However, since the projection function G includes the deformation parameters of the standard clothing C based on the customer's body shape, the projection function G cannot be known, and the image of the special clothing C ′ cannot be obtained from the image of the standard clothing C. . Even if the customer's body type information is obtained for each customer, it is not easy to determine the projection function G from the customer's body type information because this body type information is not directly related to the special clothing C '.
[0029]
On the other hand, it is possible to create a 3D image of the standard clothing C with respect to the 3D image of the standard figure model M in the virtual space, and to transform the 3D image of the standard figure model M based on the customer's figure information. Since a three-dimensional image of the body model M ′ can be created, if the projection relationship between the standard body model M and the individual body model M ′ is applied to the standard clothing C, an image of the special clothing C ′ can be obtained. . Therefore, in the pattern making apparatus 1, the image of the special clothing C ′ is equivalently created by the projection function G by following the path from the standard clothing C to the standard body model M, the individual body model M ′, and the special clothing C ′. Trying to achieve.
[0030]
Mathematically expressing the above projection relationship,

It becomes.
[0031]
The above equation (1) is obtained by applying the projection function T to the image information of the standard figure M, and by applying the projection function S to the image information of the standard figure M and the pattern D. Is obtained. Further, the expression (2) is obtained by adding an inverse function T ~ of the projection function T to the image information of the standard clothes C.¹It is shown that a three-dimensional image of the individual body model M ′ can be obtained by further applying a projection function F to the image information of the standard body model M obtained by applying the following equation (2): It is shown that a three-dimensional image of the special clothing C ′ can be obtained by applying the projection function T to the image information of the personal figure M ′ obtained in the above. In addition, the expression (4) is based on the image information of the special clothing C ′ obtained by the expression (3) and the constraint conditions of the pattern (flatness, left-right symmetry, partial straight line, partial curvedness, matching at the time of stitching. It is shown that a two-dimensional image of the pattern D ′ can be obtained by applying the projection function S in consideration of conditions such as sex.
[0032]
Returning to FIG. 1, the block configuration of the clothing pattern generator 1 will be described.
A clothing pattern creating apparatus 1 shown in FIG. 1 includes a control unit 2 that centrally controls clothing pattern creation processing, a ROM 3 that stores a program and initial data of a clothing pattern creation process, and calculation results in input information and image creation processing. RAM 4 for temporarily storing data, an input unit 5 for inputting necessary data, a display device 6 for displaying various information in the pattern making process, an individual body model created by the pattern making process, and image data of clothes And an external storage device 7 for storing data such as pattern data and a table recording device 8 for recording data.
[0033]
The input unit 5 includes a keyboard and a mouse, and information necessary for creating a clothing pattern suitable for the customer's body shape (for example, customer body shape information, clothing for creating a three-dimensional image of the individual body model M ′) Information on the pattern, information on the cloth of the clothes, and information on the sewing of the clothes) and various commands.
[0034]
The display device 6 is composed of an electronic display device such as a CRT, a liquid crystal display device, a plasma display panel, and the like, and various information necessary for creating a pattern for clothes (body information, information about clothes and other commands in the Q & A method) And the like, and clothes suitable for the customer's body shape created based on these pieces of information and a plurality of patterns constituting the clothes are displayed.
[0035]
The external storage device 7 is a device capable of writing and reading various information. Various information input via the input unit 5 (the above-mentioned customer body shape information, clothing pattern information, fabric information, and sewing) Information, etc.), created personal body model and image information of special clothing, and image information of a plurality of patterns constituting the special clothing. The external storage device 7 stores three-dimensional image information of the standard body model M (see FIG. 2) in an upright state in advance. The three-dimensional image information of the standard body model M is created, for example, using data obtained by actually measuring a person with a three-dimensional curved surface shape measuring device or the like, and the external storage device 7 stores information such as hands, feet, and heads. The image is divided into a plurality of parts and stored.
[0036]
The recording device 8 is composed of a printer, and outputs an image of the created personal body model M ′, special clothing C ′, etc., images of a plurality of pattern papers D ′ constituting the special clothing C ′, etc. on recording paper. is there.
[0037]
The control unit 2 creates a three-dimensional image of the clothing C ′ suitable for the customer's body shape in the virtual space and creates a two-dimensional image of the plurality of paper patterns D constituting the clothing in accordance with the above-described pattern creation method. Is.
[0038]
The control unit 2 includes a standard clothing image creation unit 201 that creates a 3D image of the standard clothing C ′, a model image creation unit 202 that creates a 3D image of the individual body model M ′, and a first projection function T. The first projection function calculation unit 203 to calculate, the second projection function calculation unit 204 to calculate the second projection function F, the special clothing image creation unit 205 that creates a three-dimensional image of the special clothing C ′, and the special clothing C ′. A pattern creating unit 206 is provided that creates images of a plurality of patterns D ′ constituting the special clothing C ′ from the three-dimensional image.
[0039]
The standard clothing image creation unit 201 creates a three-dimensional image of the standard clothing C by a method disclosed in, for example, Japanese Patent Application Laid-Open No. 8-44785 (a method for forming a three-dimensional shape of clothing). Although a detailed description of this image creation method is omitted, the outline thereof is that a plurality of patterns D constituting the clothes are arranged at corresponding positions around the model, and each pattern is pressed against the model so that the temporary three-dimensional shape of the clothes is obtained. After the shape is formed, a three-dimensional image of the standard garment C is generated by a method of simulating a procedure for creating clothes by sewing each pattern.
[0040]
The standard clothing image creation unit 201 stores the pattern D (a plurality of sheets) of the corresponding standard clothing C from the external storage device 7 in the RAM 4 based on the type of clothing (the type of clothing shape such as one piece or two piece) input from the input unit 5. The image data of the standard body model M is read out. Note that the three-dimensional image of the standard body model M is created using, for example, three-dimensional distance data obtained by measuring an actual model with a three-dimensional curved surface shape measuring apparatus.
[0041]
Then, each paper pattern D is arranged at a predetermined position around the standard body model M in the memory space, and each paper pattern D is pulled toward each other with a predetermined spring force until the spring force becomes a predetermined threshold value or less. In this state, image processing is performed so as to sew the patterns D together to create a three-dimensional image of the standard clothes C. In this image processing, each pattern D is deformed based on the fabric information input from the input unit 5, and sewing processing is performed based on the sewing information. Then, the three-dimensional image of the standard clothes is stored in the external storage device 7.
[0042]
The model image creation unit 202 reads out the image data of the standard body model M from the external storage device 7 to the RAM 4, and performs necessary deformation processing on the image data based on the customer body shape information input from the input unit 5. A three-dimensional image of the individual body model M ′ is created. Then, the three-dimensional image of the individual body model M ′ is also stored in the external storage device 7.
[0043]
When the 3D image of the individual body model M ′ is enlarged (or reduced) as a whole, for example, as shown in FIG. 6, the 3D image of the standard body model M is entirely enlarged at a predetermined ratio. When it is created by (or reduced) and partially enlarged (or reduced), as shown in FIG. 7, the corresponding part of the three-dimensional image of the standard model M is (enlarged or reduced), A related portion is enlarged (or reduced) to a required size by FFD (Free Form Deformation).
[0044]
FIG. 6 shows an example in which the individual body model M ′ is created by changing the height 160 cm of the standard body model M to 180 cm, and the length T in the y-axis direction of the standard body model M is 1.125 (= 180/160) times longer, and the size of each arm, both legs, bust, waist, and vip is increased by 1.125. FIG. 7 shows an example in which the individual body model M ′ is created by expanding the shoulder width of the standard body model M from 60 cm to 100 cm. The control points A and B at both ends of the shoulder (the length between AB is 60 cm). ) Is changed to control points A ′ and B ′ (the length between A′B ′ is equivalent to 100 cm) and the control points C and D of the chest are controlled by the FFD method. Is changed to D '.
[0045]
The first projection function calculation unit 203 calculates a first projection function T using the image data of the standard clothing C and the image data of the standard body model M created by the standard clothing image creation unit 201. As described above, the three-dimensional image of the standard model M is represented by a surface model using triangular patches. The reason why the standard body model M is represented by a surface model using triangular patches is to accurately represent the body shape of the model with a small number of data. On the other hand, as described above, the three-dimensional image of the standard clothes C is divided by the standard grid in which square grids are arranged in order, and a plurality of grid points are provided in the plane of the clothes. The three-dimensional image of the standard garment C is formed by a square lattice, which is close to the cloth structure (weft and warp) that is the material of the garment, suitable for making a lattice of pattern, and sewing the pattern in the virtual space. This is because it is easy to handle.
[0046]
The first projective function calculation unit 203 has a grid point ai (i = 1, 2) of the standard model M closest to the grid point ci for any grid point ci (i = 1, 2,... N) of the standard clothing C. ,... N), and information on the positional relationship of the lattice point ci with respect to the lattice point ai is calculated. The lattice point a i with respect to the lattice point ci is calculated by calculating the lattice point a i of the standard body model M having a normal vector opposite to the normal direction of the lattice point ci. If there is no lattice point ai in the normal direction of the lattice point ci, as shown in FIG. 8, a cube-shaped minute frame Q centering on the lattice point ci is set, and the dimension of this minute frame is set. A lattice point ai of the standard body model M having a normal vector in a direction opposite to the normal direction of the lattice point ci of the standard garment C that is first expanded and included in the minute frame corresponds to the lattice point ci. It becomes a point. Note that the distance between the lattice point ci and the lattice point of the standard body model M may be calculated, and the lattice point of the standard body model M having the shortest distance may be set as the lattice point ai with respect to the lattice point ci.
[0047]
The information on the positional relationship between the lattice point c1 and the lattice point a1 is, for example, a combination of the coordinates of the lattice point c1 and the coordinates of the lattice point a1, and the first projection function calculation unit 203 is configured so that all the lattice points A lattice point a i (i = 1, 2,... n) of the standard body model M corresponding to ci (i = 1, 2,... n) is calculated, and the correspondence of the coordinate data is output in a list format. Note that information on the positional relationship between the lattice point ci and the lattice point ai may be expressed as a vector distance between the lattice points. The first projection function T calculated by the first projection function calculation unit 203 is stored in the external storage device 7.
[0048]
The second projection function calculation unit 204 calculates the second projection function F using the image data of the standard body model M and the image data of the individual body model M ′ created by the model image creation unit 202. Since the three-dimensional image of the individual body model M ′ is a modification of the three-dimensional image of the standard body model M based on the customer body shape information, a plurality of triangular patches constituting the three-dimensional image of the standard body model M are included. Each lattice point ai (i = 1, 2,... N) and the corresponding lattice point ai ′ of a plurality of triangular patches constituting the three-dimensional image of the individual body model M ′ are known. Therefore, as shown in FIG. 9, the second projection function calculation unit 204, as shown in FIG. 9, lattice points ai constituting the three-dimensional image of the standard body model M and lattices constituting the three-dimensional image of the corresponding individual body model M ′. Information on the positional relationship with the point ai ′ is calculated as the second projection function F. The information on the positional relationship between the lattice point ai and the lattice point ai is, for example, a combination of the coordinates of the lattice point ai and the coordinates of the lattice point ai ′. Similar to the function T, the correspondence relationship between the coordinate data of both lattice points ai and ai 'is output in a list format. Note that information on the positional relationship between the lattice point ai and the lattice point ai ′ may be expressed as a vector distance between the lattice points. The second projection function F calculated by the second projection function calculation unit 204 is also stored in the external storage device 7.
[0049]
The special clothing image creation unit 205 creates a three-dimensional image of the special clothing C ′ by deforming the three-dimensional image of the standard clothing C using the first and second projection functions T and F. That is, the special clothing image creation unit 205 performs the calculation of the above equation (3) on each lattice point ci (i = 1, 2,... N) constituting the three-dimensional image of the standard clothing C to obtain the special clothing C ′. Lattice points ci ′ constituting the three-dimensional image are calculated. The image data of the special clothing C ′ calculated by the special clothing image creation unit 205 is stored in the external storage device 7.
[0050]
The pattern creation unit 206 separates the special clothing C ′ (three-dimensional image) created by the special clothing image creation unit 205 into a plurality of patterns D ′ (three-dimensional image), and each three-dimensional pattern. The pattern D ′ is developed into a two-dimensional shape to create a two-dimensional pattern D ″. At this time, for example, a pattern that needs to preserve left-right symmetry, such as the front part of clothing, 10, an average plane shape that is symmetrical with respect to the symmetry line is determined, and the pattern paper D ′ is developed based on this plane shape. The three-dimensional pattern D ′ of the front body is developed into a two-dimensional pattern D ″ while preserving the distance (length) between the lattice points ci under the constraint conditions.
[0051]
Further, as shown in FIG. 11, the portion d2 ″ corresponding to the curved portion d2 is the curvature of the curve so that the portion d1 ″ corresponding to the straight portion d1 in the original pattern D is a straight line. The two-dimensional shape of the paper pattern D ″ is corrected so that the change becomes a conserved curve, and the final shape of the paper pattern D ″ is determined.
[0052]
Next, the pattern making procedure of the clothes pattern making apparatus 1 will be described with reference to the flowchart shown in FIG.
[0053]
First, a plurality of patterns D constituting the standard clothes in the virtual space are pressed against the standard body model M so as to make the required deformation based on the cloth characteristics of the clothes, and each pattern D is determined based on the sewing characteristics of the clothes. A three-dimensional image of the standard garment C sewn and attached to the standard body model M is created (step # 1). Subsequently, the lattice points ai constituting the standard body type M corresponding to the respective lattice points ci constituting the standard clothes C are calculated, and information on the positional relationship between both lattice points ci, ai is calculated as the first projection function T. (Step # 3).
[0054]
Subsequently, based on the system information of the customer input from the input unit 5, the 3D image of the standard body model M is transformed to create a 3D image of the personal body model M '(step # 5). Information on the positional relationship between each lattice point ai ′ constituting the three-dimensional image of the model M ′ and the lattice point ai corresponding to the lattice point ai ′ constituting the three-dimensional image of the standard model M is the second projection function. Calculated as F (step # 7).
[0055]
Subsequently, based on the first projection function T and the second projection function F, the special garment C ′ attached to the individual body model M ′ by displacing each lattice point ci ′ constituting the three-dimensional image of the standard garment C. Is created (step # 9). Then, the three-dimensional image of the special clothing C ′ is separated into three-dimensional images of a plurality of paper patterns D ′ constituting the clothing, and the three-dimensional image of each paper pattern D ′ is divided into the symmetry and partial linearity of the paper patterns. Then, a desired pattern D ″ is created by developing it into a two-dimensional image under the restriction condition of partial curvilinearity (step # 11).
[0056]
FIG. 13 is a block configuration diagram showing an embodiment of a pattern making system using a computer network.
[0057]
The pattern making system shown in the figure is configured such that the server 20 and the client 30 can communicate bidirectionally via a network such as the Internet or an intranet.
[0058]
In this embodiment, the server 20 includes a network server 21, an application server 22, and a database server 23. The network server 21 controls bidirectional communication with the client 30, and the database server 23 stores the three-dimensional image data of the standard body model M and the image data of the paper pattern constituting the standard clothing C. The application server 22 includes a standard clothing image creation unit 221, a model image creation unit 222, a first projection function computation unit 223, and a second projection function computation unit that correspond to the standard clothing creation unit 201 to the pattern creation unit 206, respectively. 224, a special clothing image creation unit 225, and a pattern creation unit 226, and transmits information related to the basic screen to the client 30 via the network server 21 according to the access of the client 30, and also transmits from the client 30 according to this basic screen. 3D images of the clothes requested by the client 30 based on the received information and various information read out from the database server 23, and two-dimensional images of a plurality of patterns constituting the clothes, Is to create.
[0059]
The basic screen shows information necessary for the client 30 to order special clothing suitable for his / her body shape (for example, information about his / her body shape, fabric, color pattern, type (type of one-piece, two-piece, etc.), etc. On the screen for selecting and inputting information on clothes, the client 30 can input information on clothes and the like by selectively instructing input items displayed on the basic screen using a mouse (not shown). In addition, information regarding the body shape of the client 30 is performed by directly inputting a numerical value using a keyboard (not shown).
[0060]
The client 30 includes a user terminal 31 connected to a network and a display device 32 electrically connected to the user terminal. When the client 30 accesses the server 20 from the user terminal 31 via the network, information related to the basic screen is transmitted from the server 20, and this basic screen is displayed on the display device 32. Accordingly, the client 30 can receive a pattern making service by selecting and inputting desired information by operating a keyboard, a mouse, and the like according to the basic screen.
[0061]
Next, a pattern making procedure in the pattern making system shown in FIG. 13 will be described with reference to the flowcharts of FIGS.
[0062]
First, when an operator operates an input device such as a keyboard of the client 30 to access the home page of the server 20, information relating to a screen (body input screen) for receiving information related to the customer's body shape on the server 20 side is received. Is transmitted to the client 30 (steps # 21 and # 41).
[0063]
On the client 30 side, a body shape input screen is displayed on the display device 32 based on the information relating to the body shape input screen, and the operator inputs the body shape information of the customer using the keyboard, mouse, or the like according to the display content (step # 23). . The inputted customer body shape information is transmitted to the server 20 side via the network, temporarily stored in the RAM (not shown) of the application server 22, and information related to the basic screen is transmitted to the client 30 side. (Step # 43).
[0064]
Subsequently, on the client 30 side, a basic screen is displayed on the display device 32 based on the information related to the basic screen, and an operator selects and inputs information such as the fabric, color pattern, and type of desired clothes according to the basic screen. When an instruction to create a pattern for the garment is given (steps # 25 and # 27), various information such as information about the garment and a pattern creation instruction are transmitted to the server 20 side (step # 29).
[0065]
On the other hand, the server 20 receives various types of information transmitted from the client 30 and executes the processes of steps # 47 to # 57 corresponding to steps # 1 to # 11 described in the flowchart of FIG. A three-dimensional image of a specially-made garment suitable for the above is created, and a plane image of a paper pattern constituting the garment is created. Then, the information on the stereoscopic image of the special clothing and the plane image of the pattern is transmitted to the client 30 via the network (step # 59), and on the client 30 side, the stereoscopic image of the special clothing and the plane image of the pattern are displayed. When the information is received (step # 31), these images are updated and displayed on the display device 32 (step # 33).
[0066]
Thereby, the operator can confirm the three-dimensional shape suitable for the body shape of the clothes selected by the operator and can easily obtain the pattern of the clothes. If the desired clothing shape cannot be obtained, correct the body shape information and information about the clothing and instruct the creation of the pattern again to easily create the desired shape and the pattern of the clothing. Can be acquired.
[0067]
In the above embodiment, the standard body model M is deformed based on the customer body shape information to obtain the individual body model M ′. However, based on the actual body data measured by the three-dimensional curved surface shape measuring apparatus. A three-dimensional image of the individual body model M ′ may be created. Alternatively, not only the standard body model M but also three-dimensional images of a plurality of body models similar to this are prepared in advance, and the individual body model is selected by selecting the most similar body model based on the customer body information. M ′ may be determined.
[0068]
As described above, the standard clothing C for the standard body model M is created in the virtual space of the CG, and the personal body model M ′ according to the customer body shape is created. Since the special clothing C 'for the individual body model M' is created by reflecting the displacement characteristics on the standard clothing C, and the paper pattern D 'is created from the special clothing C', the clothing paper pattern that matches the customer's body shape. Can be created easily and easily.
[0069]
As a result, for example, in the design of apparel industry, it is possible to quickly and easily create a pattern of clothing suitable for a customer who is a target unique to each company. Also, in the case of custom-made, since it is possible to obtain a three-dimensional shape of clothes and a pattern of the clothes that match the customer's body shape at the time of measurement, it contributes to speeding up of clothing creation and cost reduction. Furthermore, by registering the personal body model M ′ corresponding to the customer's body shape, it is possible to quickly respond to orders for clothes of various shapes and clothes of the same shape.
[0070]
【The invention's effect】
As described above, according to the present invention, a garment pattern creating method for creating a garment pattern suitable for an individual figure using a CG image, comprising a three-dimensional image of a standard figure model and a standard garment. A three-dimensional image of a standard garment corresponding to the standard body model is created using a three-dimensional image of a plurality of patterns, and a first projection function indicating the correspondence between the standard body model and the standard garment is calculated. On the other hand, the 3D image of the standard body model is transformed based on the information about the personal body model to create a 3D image of the personal body model, and the second projection function indicating the correspondence between the standard body model and the personal body model is provided. A three-dimensional image of the clothing corresponding to the individual body model is created by transforming the three-dimensional image of the standard clothing using the first and second projection functions, and based on the three-dimensional image of the clothing Since so as to create a plurality of paper constituting the garment, it is possible to create a paper pattern of the garment of suitable shape corresponding to any type simply and easily. As a result, even in the case of custom-made, the three-dimensional shape of the clothes and the pattern of the clothes matched to the customer's body shape at the time of measurement can be obtained, and the clothes can be quickly created.
[0071]
In addition, when creating a plurality of patterns constituting a garment based on a three-dimensional image of the garment corresponding to the individual body model, the third order of each pattern is limited by the symmetry, partial linearity, and partial curvilinearity of the pattern. Since the original image is converted into a two-dimensional image, an accurate pattern with high practicality can be obtained.
[0072]
In addition, since the pattern creation system is constructed with a computer system, even individual users can easily obtain pattern patterns for clothes that match any body shape, and effectively use it as a support system for creating clothes for general users. Can do.
[Brief description of the drawings]
FIG. 1 is a block configuration diagram showing an embodiment of a garment pattern making system according to the present invention.
FIG. 2 shows a process for creating standard clothing for a standard body model.
3A and 3B are diagrams showing a standard body model and an individual body model obtained by modifying the standard body model, where FIG. 3A is a front view and FIG. 3B is a side view.
FIG. 4 is a diagram illustrating a process of creating a characteristic garment for an individual body model by deforming a standard garment.
FIG. 5 is a diagram showing a pattern making method according to the present invention using a mathematical model.
FIG. 6 is a diagram for explaining a method of creating an image of a desired individual body model by enlarging an image of a standard body model as a whole.
FIG. 7 is a diagram for explaining a method of enlarging a part of an image of a standard body model and creating an image of a desired individual body model.
FIG. 8 is a diagram for explaining a method for calculating a first projection function T;
FIG. 9 is a diagram for explaining a method for calculating a second projection function F;
FIG. 10 is a diagram showing a pattern of the front body obtained by developing a three-dimensional image of the front body part under the constraint of the symmetry of the pattern.
11 is a diagram showing a pattern finally obtained by performing correction based on the restriction condition of partial linearity and partial curvilinearity on the pattern of the front body shown in FIG. 10; FIG.
FIG. 12 is a flowchart showing a pattern making procedure of the pattern making system according to the present invention.
FIG. 13 is a block configuration diagram showing an embodiment of a pattern making system using a computer network.
FIG. 14 is a flowchart showing a pattern making procedure in a pattern making system using a computer network.
FIG. 15 is a flowchart showing a pattern creation procedure in a pattern creation system using a computer network.
[Explanation of symbols]
1 Clothes pattern making device
2 Control unit
201,221 Standard clothing image creation unit (standard clothing image creation means)
202, 222 Model image creation unit (model image creation means)
203, 223 First projection function calculation section (first calculation means)
204, 224 Second projection function calculation unit (second calculation means)
205,225 Special clothing image creation unit (clothing image creation means)
206, 226 Pattern making section (pattern creating means)
3 ROM
4 RAM
5 Input section (input means)
6,32 Display device (display means)
7 External storage device (storage means)
8 Recording device
20 servers
21 Work Server (Server side communication means)
22 Application server
23 Database server
30 clients
31 User terminal (user communication means)
C Standard clothing (three-dimensional shape)
C 'special clothing (three-dimensional shape)
D Patterns composing standard clothes
D 'Paper pattern composing special clothing
D ″ Patterns that make up special clothing (planar shape)
M Standard body model (three-dimensional shape)
M 'Individual model (three-dimensional shape)

Claims (7)

  A method for creating a clothing pattern for creating a clothing pattern suitable for an individual body shape using a CG image, wherein the three-dimensional image of the standard body model created in advance and the standard clothing corresponding to the standard body model created in advance The three-dimensional images of the plurality of patterns forming the pattern are deformed so that the images of the patterns are attached to the corresponding parts of the standard body model, and the images of the respective patterns after the deformation are set in advance. A standard garment and a standard body model using a first step of creating a three-dimensional image of the standard garment by combining based on information, and the three-dimensional image of the standard garment and the three-dimensional image of the standard body model A second step of calculating a first projection function indicating a correspondence relationship between the three-dimensional image and a three-dimensional image of the standard body model based on information about the personal body type input in advance, A third step of creating an original image; a fourth step of calculating a second projection function indicating a correspondence relationship between the three-dimensional image of the standard body model and the three-dimensional image of the individual body model; A fifth step of creating a three-dimensional image of clothes corresponding to the individual body model by deforming the three-dimensional image of the standard clothes using the first and second projection functions; and a method corresponding to the individual body model And a sixth step of creating a plurality of patterns constituting the garment based on a three-dimensional image of the garment.   2. The method for creating a pattern for a garment according to claim 1, wherein a plurality of patterns constituting the garment suitable for the individual body model includes a three-dimensional image of each stencil constituting the garment, the symmetry of the pattern, partial linearity, and A method for creating a pattern for clothes, wherein the pattern is created by converting into a two-dimensional image using partial curvilinearity as a constraint.   A garment pattern creation system for creating a garment pattern suitable for an individual figure using a CG image, corresponding to a pre-created standard figure model three-dimensional image data and a pre-created standard figure model Using storage means in which three-dimensional image data of a plurality of patterns constituting a standard garment is stored, a three-dimensional image of the standard body model and a three-dimensional image of a plurality of patterns constituting the standard garment, The three-dimensional image of the standard garment is obtained by transforming the image of each pattern so as to be attached to the corresponding part of the standard body model, and by synthesizing the image of each pattern after the deformation based on preset sewing information. A first garment indicating the correspondence between the standard garment and the standard body model using the standard garment image creating means for creating the standard garment, the three-dimensional image of the standard garment and the three-dimensional image of the standard body model. A first computing means for calculating a function; an input means for inputting information relating to a personal figure; and a three-dimensional image of the personal figure model by modifying the three-dimensional image of the standard figure model based on the inputted information relating to the personal figure Model image creating means for creating a second projection function for calculating a second projection function indicating a correspondence relationship between the three-dimensional image of the standard model and the three-dimensional image of the individual model, and the first And a clothing image creating means for creating a 3D image of clothing corresponding to the personal body model by deforming the 3D image of the standard clothing using the second projection function, and a clothing corresponding to the personal body model A pattern making system for clothes comprising a pattern creating means for creating a plurality of patterns constituting the clothes based on the three-dimensional image.   4. The garment pattern creating system according to claim 3, wherein a standard garment, a personal body model, a process for creating each three-dimensional image of the garment corresponding to the personal body model, and a plurality of paper patterns constituting the garment corresponding to the personal body model are provided. A clothing pattern making system comprising display means for displaying a creation process. Based on information related to the user's body shape and information input from the user via the network, a virtual three-dimensional image of the clothing corresponding to the user is created, and the clothing is configured based on the clothing image. A server for creating a plurality of patterns and providing them to the user is provided. The server receives information on the body shape of the user and information on clothes transmitted from the user, and transmits information on the created patterns to the user. Server-side communication means for storing, three-dimensional image data of a standard body model created in advance and three-dimensional image data of a plurality of paper patterns constituting standard clothing corresponding to the standard body model created in advance Selected on the basis of the storage means and the information on the clothes transmitted from the user. By using the three-dimensional image of the three-dimensional image image and the standard body model of a plurality of paper constituting the standard garment, with an image of each paper deforms to put clothes into the corresponding sites of the standard body model, deformation Standard garment image creating means for creating a three-dimensional image of the standard garment by synthesizing the image of each subsequent pattern based on preset sewing information, and the three-dimensional image of the standard garment and the standard body shape model Based on the first calculation means for calculating the first projection function indicating the correspondence between the standard clothes and the standard figure model using the three-dimensional image, and the standard figure model based on the information about the individual figure transmitted from the user Model image creation means for creating a 3D image of a user body model by transforming a 3D image of the above, a 3D image of the standard body model and a 3D image of the user body model A second computing means for calculating a second projection function indicating a correspondence relationship with the image, and the user body model by deforming the three-dimensional image of the standard clothing using the first and second projection functions. A clothing image creation means for creating a 3D image of clothes corresponding to the user, and a pattern creation means for creating a plurality of paper patterns constituting the clothing based on the 3D image of clothes corresponding to the user body model. A pattern making system for clothes characterized by In paper making system of garment according to claim 5, the user information input means for inputting information about the information and garments about type of the user, transmits the information about the information and garments about type of the user, from the server A pattern forming system for clothes, comprising: communication means on a user side for receiving pattern information to be transmitted. 7. The pattern making system for clothes according to claim 3, 4, 5 or 6 , wherein the pattern creating means comprises a plurality of patterns constituting the clothes corresponding to the user body model, and a three-dimensional image of each pattern constituting the clothes. A pattern forming system for clothes, wherein the pattern is generated by converting the pattern into a two-dimensional image with the symmetry, partial linearity and partial curvilinearity as constraints.

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