DE60033330D1 - Verfahren und Vorrichtung zur Blockrauschdetektion - Google Patents

Verfahren und Vorrichtung zur Blockrauschdetektion

Info

Publication number
DE60033330D1
DE60033330D1 DE60033330T DE60033330T DE60033330D1 DE 60033330 D1 DE60033330 D1 DE 60033330D1 DE 60033330 T DE60033330 T DE 60033330T DE 60033330 T DE60033330 T DE 60033330T DE 60033330 D1 DE60033330 D1 DE 60033330D1
Authority
DE
Germany
Prior art keywords
blockage detection
blockage
detection
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
DE60033330T
Other languages
English (en)
Other versions
DE60033330T2 (de
Inventor
Takashi Kenmochi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Victor Company of Japan Ltd
Original Assignee
Victor Company of Japan Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP29791599A external-priority patent/JP2001119695A/ja
Priority claimed from JP35556399A external-priority patent/JP4306061B2/ja
Application filed by Victor Company of Japan Ltd filed Critical Victor Company of Japan Ltd
Application granted granted Critical
Publication of DE60033330D1 publication Critical patent/DE60033330D1/de
Publication of DE60033330T2 publication Critical patent/DE60033330T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/85—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression
    • H04N19/86—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression involving reduction of coding artifacts, e.g. of blockiness
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/85—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression
    • H04N19/86—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression involving reduction of coding artifacts, e.g. of blockiness
    • H04N19/865—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression involving reduction of coding artifacts, e.g. of blockiness with detection of the former encoding block subdivision in decompressed video

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Picture Signal Circuits (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Image Processing (AREA)
DE60033330T 1999-03-26 2000-03-13 Verfahren und Vorrichtung zur Blockrauschdetektion Expired - Lifetime DE60033330T2 (de)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP8319099 1999-03-26
JP8319099 1999-03-26
JP29791599 1999-10-20
JP29791599A JP2001119695A (ja) 1999-10-20 1999-10-20 ブロックノイズ低減装置
JP35556399 1999-12-15
JP35556399A JP4306061B2 (ja) 1999-03-26 1999-12-15 ブロックノイズ検出装置

Publications (2)

Publication Number Publication Date
DE60033330D1 true DE60033330D1 (de) 2007-03-29
DE60033330T2 DE60033330T2 (de) 2008-01-10

Family

ID=27304150

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60033330T Expired - Lifetime DE60033330T2 (de) 1999-03-26 2000-03-13 Verfahren und Vorrichtung zur Blockrauschdetektion

Country Status (4)

Country Link
US (1) US6975777B1 (de)
EP (1) EP1039760B1 (de)
CN (1) CN1200570C (de)
DE (1) DE60033330T2 (de)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2823943A1 (fr) * 2001-04-24 2002-10-25 Koninkl Philips Electronics Nv Procede de detection de bruit dans un flux de donnees video codees
JP4197402B2 (ja) * 2002-03-15 2008-12-17 株式会社日立製作所 デジタル放送受信装置およびデジタル放送受信方法
US20070104385A1 (en) * 2003-07-02 2007-05-10 Sony Corporation Block distortion detection apparatus, block distortion detection method and video signal processing apparatus
US7869500B2 (en) * 2004-04-27 2011-01-11 Broadcom Corporation Video encoder and method for detecting and encoding noise
US7949051B2 (en) 2004-05-26 2011-05-24 Broadcom Corporation Mosquito noise detection and reduction
US7405770B1 (en) * 2004-10-13 2008-07-29 Cirrus Logic, Inc. Adaptive equalization method and system for reducing noise and distortion in a sampled video signal
EP1729529A1 (de) * 2005-06-02 2006-12-06 BRITISH TELECOMMUNICATIONS public limited company Videosignal Verlustdetektion
JP4859412B2 (ja) * 2005-08-26 2012-01-25 クラリオン株式会社 ディジタル放送受信装置、ディジタル放送受信方法、およびプログラム
JP4557843B2 (ja) * 2005-08-31 2010-10-06 キヤノン株式会社 画像処理装置及びその方法
US7982798B2 (en) 2005-09-08 2011-07-19 Silicon Image, Inc. Edge detection
US8120703B2 (en) 2005-09-08 2012-02-21 Silicon Image/BSTZ Source-adaptive video deinterlacer
US8004606B2 (en) 2005-09-08 2011-08-23 Silicon Image, Inc. Original scan line detection
TWI308459B (en) * 2005-10-26 2009-04-01 Univ Nat Chiao Tung Context-aware frame memory scheme for motion compensation in video decoding
WO2008076566A1 (en) 2006-12-20 2008-06-26 Anchor Bay Technologies, Inc. Noise cancellation
CN101472177B (zh) * 2007-12-27 2013-03-06 宝利微电子系统控股公司 一种块效应检测方法
US8559746B2 (en) 2008-09-04 2013-10-15 Silicon Image, Inc. System, method, and apparatus for smoothing of edges in images to remove irregularities
JP2012517774A (ja) * 2009-02-10 2012-08-02 シリコン イメージ，インコーポレイテッド ブロックノイズの検出及びフィルタ処理
US10477249B2 (en) * 2009-06-05 2019-11-12 Apple Inc. Video processing for masking coding artifacts using dynamic noise maps
JP2012191250A (ja) * 2011-03-08 2012-10-04 Sony Corp 画像処理装置、画像処理方法、およびプログラム
CN108920982B (zh) * 2015-10-30 2021-08-17 深圳国微技术有限公司 一种用于安全芯片的防篡改屏蔽层
MX2020006500A (es) * 2017-12-29 2020-09-17 Ericsson Telefon Ab L M Metodos que proporcionan codificacion y/o decodificacion de video usando valores de referencia y dispositivos relacionados.
CN109640166A (zh) * 2018-08-13 2019-04-16 张利军 基于动感程度的片尾曲选择方法

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07105946B2 (ja) 1989-12-04 1995-11-13 株式会社グラフイックス・コミュニケーション・テクノロジーズ ブロック歪除去フィルタ
US5337088A (en) 1991-04-18 1994-08-09 Matsushita Electric Industrial Co. Ltd. Method of correcting an image signal decoded in block units
DE4343095C2 (de) 1993-12-17 2001-04-26 Philips Corp Intellectual Pty Verfahren und Schaltung zur Störsignalbefreiung von Videosignalen
JP2940422B2 (ja) 1994-11-24 1999-08-25 日本ビクター株式会社 変換符号化された画像データの復号化時に生じるブロック歪の低減方法及び変換符号化された画像データの復号化装置
US5654759A (en) 1995-02-15 1997-08-05 Hitachi America Ltd. Methods and apparatus for reducing blockiness in decoded video
EP0808068B1 (de) 1996-05-14 2004-08-25 Daewoo Electronics Corporation Reduzierung von Blockeffekten in einem Bewegtbilddekoder
US5796875A (en) 1996-08-13 1998-08-18 Sony Electronics, Inc. Selective de-blocking filter for DCT compressed images
DE69720192T2 (de) 1997-05-30 2003-12-04 Stmicroelectronics S.R.L., Agrate Brianza Nachverarbeitungsmethode zur Verringerung von Artefakten in blockweise kodierten digitalen Bildern, und Vorrichtung zur Verwendung der Methode
GB9712645D0 (en) 1997-06-18 1997-08-20 Nds Ltd Improvements in or relating to image processing

Also Published As

Publication number Publication date
DE60033330T2 (de) 2008-01-10
EP1039760A2 (de) 2000-09-27
EP1039760B1 (de) 2007-02-14
US6975777B1 (en) 2005-12-13
CN1268842A (zh) 2000-10-04
CN1200570C (zh) 2005-05-04
EP1039760A3 (de) 2003-10-29

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