CN206514822U - Timesharing 3 D scanning system - Google Patents
Timesharing 3 D scanning system Download PDFInfo
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- CN206514822U CN206514822U CN201621228539.3U CN201621228539U CN206514822U CN 206514822 U CN206514822 U CN 206514822U CN 201621228539 U CN201621228539 U CN 201621228539U CN 206514822 U CN206514822 U CN 206514822U
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Abstract
The utility model provides a kind of timesharing 3 D scanning system, including：First projection arrangement, the second projection arrangement, image acquiring device, sequential control circuit.Within the very first time, sequential control circuit controls the first projection arrangement to project the first fringe structure light, and control image acquiring device obtains the first view data；Within the second time, sequential control circuit controls the second projection arrangement to project the second fringe structure light, and control image acquiring device obtains the second view data.The utility model ensure that on the premise of the position relationship between scanned object, projection arrangement and/or image acquiring device is not adjusted, and more accurately obtain the three-dimensional digitalization model of similar step surface structure on profiling object surface.
Description
Technical field
The utility model is related to a kind of 3 D scanning system, more particularly to a kind of timesharing 3 D scanning system.
Background technology
At present, the three-dimensional digitalization model (or being intraoral digitlization stamp) of cavity interior is obtained by 3-D scanning
Technology path mainly includes scanning and intraoral two kinds of scanning outside mouth.Scanning mainly has two methods outside mouthful：Scanning formpiston (for example,
The formpiston that the materials such as the gypsum reprinted make) and scanning stamp (for example, stamp that the material such as silica gel makes).Scan gypsum formpiston
Method need doctor first to obtain the silica gel stamp (former) of patient's denture, then the materials such as gypsum are irrigated to silica gel stamp, obtained
The gypsum formpiston of denture, the formpiston is scanned finally by three-dimensional scanning device, obtains the digitlization stamp of denture.Scan silica gel print
The method of mould directly scans the silica gel stamp of patient's denture by three-dimensional scanning device, it is not necessary to turns over gypsum formpiston processed, simplifies
The operating process of doctor.Intraoral scanning generally uses handheld three-dimensional scanning device, directly scans the oral cavity of patient, obtains denture
Three-dimensional digitalization model, it is not necessary to obtain the silica gel stamp of patient's denture.
Structure light (Structured Light) technology is generally used in being scanned outside intraoral scanning and mouth.As shown in figure 1, root
According to geometric shape, structure light can be divided into lattice structure light (for example, shown in Fig. 1-A), network light (for example, Fig. 1-B institutes
Show), fringe structure light etc..Fringe structure light is widely used in being scanned outside intraoral scanning and mouth, according to coded system
Difference, fringe structure light includes fringe structure light (for example, shown in Fig. 1-C), the striped knot of time-domain coding that spatial domain is encoded
Structure light (for example, shown in Fig. 1-D), and spatial domain-time-domain hybrid coding structure light (for example, shown in Fig. 1-E) etc..Need
, it is noted that the content shown in Fig. 1 is mainly used in understanding the different geometric shapes and its difference of structure light, structure is not meant to
Light only has the geometric shape shown in Fig. 1, that is, does not mean that lattice structure light only has the geometric shape shown in Fig. 1-A, net
Network structure light only has the geometric shape shown in Fig. 1-B, and the fringe structure light of spatial domain coding only has the geometry shown in Fig. 1-C
Form, the fringe structure light of time-domain coding only has the geometric shape that Fig. 1-D are encoded, spatial domain-time-domain hybrid coding
Structure light only has the geometric shape shown in Fig. 1-E.
When carrying out 3-D scanning using fringe structure light, when scanned object surface has relatively sharp keen step surface knot
During structure (such as neck edge point), if the direction of fringe structure light is parallel with the direction of the step surface structure, it can not lead to
The accurate three-dimensional digitalization model that 3-D scanning obtains the step surface structure is crossed, the wherein direction of fringe structure light is striped knot
Rectilinear direction where the striped of structure light, step surface structure can be right angle platform terrace structure or radian step surface knot
Structure, no matter which kind of step surface structure, the direction of step surface structure is tangent plane (as shown in Figure 2) direction of step surface structure.For
This, it is necessary to adjust scanned object, the projection arrangement of three-dimensional scanning device and/or three-dimensional scanning device image acquiring device it
Between position relationship so that the stripe direction of fringe structure light and the direction shape of step surface structure have a certain degree (optimal corner
Spend to be mutually perpendicular to), so as to obtain the accurate three-dimensional digitalization model of step surface structure.But, the adjustment of position relationship will
Influence the efficiency of 3-D scanning, the complexity of lifting 3-D scanning operation.
The content of the invention
To overcome above mentioned problem, according to one side of the present utility model, there is provided a kind of timesharing 3 D scanning system, bag
Include：First image acquiring device, the second image acquiring device, projection arrangement, sequential control circuit, wherein, sequential control circuit
Communicated to connect with the first image acquiring device, the second image acquiring device and projection arrangement.
First image acquiring device is used to obtain the first view data within the very first time.
Second image acquiring device is used to obtain the second view data within the second time.
Projection arrangement is used to project the first fringe structure light within the very first time, and projects Article 2 within the second time
Line structure light.
Within the very first time, sequential control circuit control projection arrangement projects the first fringe structure light, and controls (for example
Synchronization Control) the first image acquiring device the first view data of acquisition；Within the second time, sequential control circuit control projection dress
The second fringe structure light of projection is put, and controls (such as Synchronization Control) second image acquiring device to obtain the second view data.
First, second image is respectively the image that first, second fringe structure light is projected onto on testee.
First baseline is vertical with the stripe direction of the first fringe structure light, wherein the first baseline is the first image acquiring device
With the photocentre line of projection arrangement；Second baseline is vertical with the stripe direction of the second fringe structure light, wherein the second baseline is the
The photocentre line of two image acquiring devices and projection arrangement.
There is angle between the stripe direction of first fringe structure light and the stripe direction of the second fringe structure light.
Further, the angle between the stripe direction of the first fringe structure light and the stripe direction of the second fringe structure light
More than or equal to 30 degree, preferably greater than equal to 60 degree, most preferably, angle is 90 degree.
Further, timesharing 3 D scanning system obtains testee according to the first view data and the second view data
Three-dimensional digitalization model；Or three-dimensional Time share scanning system judges that can the first view data or the second view data meet reconstruction
The condition of the three-dimensional digitalization model of testee, if it is possible to meet, then according to the first view data or the second view data
The three-dimensional digitalization model of testee is rebuild, if it is impossible to meet according to the first view data and the second view data
Rebuild the three-dimensional digitalization model of testee.
Further, the first image acquiring device and the second image acquiring device include 1 camera；Or first image
Acquisition device includes the camera of 2 or more than 2, and the second image acquiring device also includes the camera of 2 or more than 2.
According to other side of the present utility model there is provided a kind of three-dimensional Time share scanning system, including：First projection dress
Put, the second projection arrangement, image acquiring device, sequential control circuit, wherein, sequential control circuit and the first projection arrangement,
Two projection arrangements and image acquiring device communication connection.
First projection arrangement is used to project the first fringe structure light within the very first time.
Second projection arrangement is used to project the second fringe structure light within the second time.
Image acquiring device is used to obtain the first image within the very first time, and obtains within the second time the second figure
Picture.
Within the very first time, sequential control circuit controls the first projection arrangement to project the first fringe structure light, and controls
(such as Synchronization Control) image acquiring device obtains the first view data；Within the second time, sequential control circuit control second
Projection arrangement projects the second fringe structure light, and controls (such as Synchronization Control) image acquiring device to obtain the second picture number
According to.
First, second image is respectively the image that first, second fringe structure light is projected onto on testee.
First baseline is vertical with the stripe direction of the first fringe structure light, wherein the first baseline is the first projection arrangement and figure
As the photocentre line of acquisition device；Second baseline is vertical with the stripe direction of the second fringe structure light, wherein the second baseline is the
The photocentre line of two projection arrangements 220 and image acquiring device 260.
There is angle between the stripe direction of first fringe structure light and the stripe direction of the second fringe structure light.
Further, the angle between the stripe direction of the first fringe structure light and the stripe direction of the second fringe structure light
More than or equal to 30 degree, preferably greater than equal to 60 degree, most preferably, angle is 90 degree.
Further, timesharing 3 D scanning system obtains testee according to the first view data and the second view data
Three-dimensional digitalization model；Or three-dimensional Time share scanning system judges that can the first view data or the second view data meet reconstruction
The condition of the three-dimensional digitalization model of testee, if it is possible to meet, then according to the first view data or the second view data
The three-dimensional digitalization model of testee is rebuild, if it is impossible to meet according to the first view data and the second view data
Rebuild the three-dimensional digitalization model of testee.
Further, the first projection arrangement and the second projection arrangement include 1 projector, or, the first projection arrangement
Projector including 2 or more than 2, the second projection arrangement also includes the projector of 2 or more than 2.
The three-dimensional Time share scanning system that the utility model is provided, can when any posture position goes scanning step surface structure
Clearly obtain three-dimensional digital structure.Especially when artificial tooth makes, because the bead part of standby tooth is to need to extract most
Important three-D profile part, the bead portion of standby tooth can be clearly obtained using three-dimensional Time share scanning system of the present utility model
The three-dimensional digital structure divided, and then the quality of artificial tooth processing can be improved.
Brief description of the drawings
Fig. 1 is the schematic diagram of structure light geometric shape in background technology；
Fig. 2 is the tangent plane schematic diagram of step surface (right angle platform terrace and radian step surface) in background technology；
Fig. 3 is the structural representation of the timesharing 3 D scanning system according to the utility model embodiment 1；
Fig. 4 is longitudinal projection's schematic diagram of the timesharing 3 D scanning system according to the utility model embodiment 1；
Fig. 5 A-5C are the examples of the other embodiment of the three-dimensional Time share scanning system according to the utility model embodiment 1
Longitudinal projection's schematic diagram of property；
Fig. 6 is the structure light schematic diagram of the three-dimensional Time share scanning system according to the utility model embodiment 2.
Embodiment
To make the purpose of this utility model, technical scheme and advantage clearer, the utility model will be made with reference to accompanying drawing
Further it is described in detail.This description is to describe by way of example, and not limitation and principle phase one of the present utility model
The embodiment of cause, the description of these embodiments is detailed enough, to enable those skilled in the art to put into practice
The utility model, other embodiment can be used in the case where not departing from scope and spirit of the present utility model and can be with
Change and/or replace the structure of each key element.Therefore, the following detailed description should not be understood from restrictive, sense.
Embodiment 1
As shown in Figure 3 and Figure 4, three-dimensional Time share scanning system 100 of the present utility model, including：First image acquiring device
110th, the second image acquiring device 120, projection arrangement 160, sequential control circuit 170.Wherein, sequential control circuit 170 and
One image acquiring device 110, the second image acquiring device 120 and projection arrangement 160 are communicated to connect.
First image acquiring device 110 is used to obtain the first view data within the very first time.
Second image acquiring device 120 is used to obtain the second view data within the second time.
Projection arrangement 160 is used to project the first fringe structure light within the very first time, and projects within the second time the
Two fringe structure lights.
Optionally, the first image acquiring device 110 is gray scale camera or color camera, and the second image acquiring device 120 is
Gray scale camera or color camera.It is preferred that, the first image acquiring device 110 and the second image acquiring device 120 are gray scale phase
Machine is color camera.
Due to first, second image acquiring device, timesharing independently obtains first, second figure within first, second time respectively
As the parameter of data, therefore first, second image acquiring device can be different., but it is preferable that the He of the first image acquiring device 110
Second image acquiring device 120 is with identical parameter.
Optionally, projection arrangement 160 can be the projector using film, or using the projector of grating, go back
Can be digital projector etc..Digital projector includes LCD projector, LCOS projectors, DLP projector etc..
It will be apparent to those skilled in the art that the above-mentioned choosing of the first image acquiring device, the second image acquiring device, projection arrangement
It is exemplary to select, and the type and parameter of any image acquiring device and projection arrangement are selected without limitation on the utility model
Protection domain.
First, second image is respectively the image that first, second fringe structure light is projected onto on testee.It is optional
, first, second fringe structure light can be respectively the fringe structure light of spatial domain coding, the striated structure of time-domain coding
The structure light of light or spatial domain-time-domain hybrid coding.First, second fringe structure light can be a frame fringe structure light,
Multiframe fringe structure light can also be included, accordingly, first, second image can be a two field picture, can also include multiframe figure
Picture.
For example, according to one side of the present utility model, in intraoral scanning, first, second fringe structure light is preferred
Use the frame color fringe structure light that spatial domain is encoded to ensure the speed of intraoral scanning, then projection arrangement use can be projected
The projector of color fringe, the preferred color camera of first, second image acquiring device, first, second image of acquisition also divides
Wei not a color image frame.
For another example, according to other side of the present utility model, when formpiston is scanned outside mouth, first, second fringe structure light
Be the multiframe gray scale fringe structure light for being preferred to use time-domain coding to improve the precision that formpiston outside mouth is scanned, then projection arrangement
The projector of gray scale striped can be projected by being preferred to use, and can also use can project the projector of color fringe, first, second figure
As the preferred gray scale camera of acquisition device, color camera can be also used, first, second image of acquisition is also respectively multiframe gray scale
Image.
For another example, according to another aspect of the present utility model, when being scanned outside mouth, the first fringe structure light is to use the time
The multiframe gray scale fringe structure light of domain coding, the second fringe structure light is the frame color fringe structure encoded using spatial domain
Light, with raising sweep speed of being tried one's best while scanning accuracy is ensured.In this case, projection arrangement use can project colour
The projector of striped, the preferred gray scale camera of the first image acquiring device (can also use color camera), the second image acquiring device
It is preferred that color camera, the first image is multiframe gray level image, the second image is a color image frame.
It will be apparent to those skilled in the art that intraoral scanning and the outer formpiston scanning of mouth are to clearly introduce of the present utility model show
The application scenarios of example property, are not intended to limit protection domain of the present utility model and are swept to can be only used for intraoral scanning and the outer formpiston of mouth
Retouch.Those skilled in the art will also recognize that when intraoral scanning and the outer formpiston of mouth are scanned, the selection for fringe structure light is also example
Property, the fringe structure light that intraoral scanning is necessarily encoded using spatial domain is not intended to limit, also the outer formpiston scanning of restricted entry is not inevitable
The fringe structure light of use time domain coding.
According to the utility model, within the very first time, the control projection arrangement 160 of sequential control circuit 170 projects first
Line structure light, and control (such as Synchronization Control) first image acquiring device 110 to obtain the first view data；In the second time
Interior, the control projection arrangement 160 of sequential control circuit 170 projects the second fringe structure light, and controls (such as Synchronization Control) the
Two image acquiring devices 110 obtain the second view data.
According to the utility model, the first baseline 180 is vertical with the stripe direction 190 of the first fringe structure light, wherein first
Baseline is the photocentre line of the first image acquiring device 110 and projection arrangement 160.Second baseline 185 and the second fringe structure light
Stripe direction 195 it is vertical, wherein the second baseline is the photocentre line of the second image acquiring device 120 and projection arrangement 160.
According to the utility model, the stripe direction of the fringe structure light of stripe direction 190 and second of the first fringe structure light
Exist between 195 and at least there is a fringe structure light and phase in angle, therefore the first fringe structure light and the second fringe structure light
It is not parallel to sharp keen step surface, so as to ensure do not adjust scanned object, the projection arrangement of three-dimensional scanning device and/
Or on the premise of the position relationship between the image acquiring device of three-dimensional scanning device, the accurate 3-dimensional digital for obtaining step surface
Change model.
It will be apparent to those skilled in the art that the above-mentioned selection for example for this Typical step face structure of neck edge point is
Exemplary, other any similar step surface structures are applied to the utility model.
Angle between the direction of the stripe direction of fringe structure light and sharp keen step surface structure is bigger, then results in
The three-dimensional digitalization model of more accurate step surface structure.Therefore, the striped of stripe direction 190 and second of the first fringe structure light
Angle between the stripe direction 195 of structure light is preferably greater than or equal to 30 degree, and preferred angle is more than or equal to 60 degree.Most preferably
, angle be 90 degree (Fig. 3 and angle shown in Fig. 4 be 90 degree) so that the stripe direction and platform of a proper fringe structure light
When the direction of terrace structure is parallel, the angle between the stripe direction of another fringe structure light and the direction of step surface structure is maximum
(i.e. 90 degree).
Three-dimensional Time share scanning system 100 is used to obtain testee according to the first view data and/or the second view data
Three-dimensional digitalization model.According to one side of the present utility model, three-dimensional Time share scanning system 100 is according to the first view data
The three-dimensional digitalization model of testee is rebuild with the second view data.According to other side of the present utility model, three-dimensional point
When scanning system 100 judge the first view data or the second view data can meet rebuild testee three-dimensional digital
The condition of model, if it is possible to meet, then rebuild three dimensions of testee according to the first view data or the second view data
Word model, if it is impossible to meet rebuild three dimensions of testee according to the first view data and the second view data
Word model.
As shown in figure 3, the first image acquiring device 110 and the second image acquiring device 120 include 1 camera.But,
Optionally, as shown in figures 5a-5c, the first image acquiring device 110 can include the camera of 2 or more than 2, and the second image is obtained
Device 120 is taken to include the camera of 2 or more than 2, obtaining first, second picture number of more horn of plenty
According to.
Embodiment 2
As shown in fig. 6, three-dimensional Time share scanning system 200 of the present utility model, including：First projection arrangement 210, second is thrown
Image device 220, image acquiring device 260, sequential control circuit 170.Wherein, the projection arrangement of sequential control circuit 270 and first
210th, the second projection arrangement 220 and image acquiring device 260 are communicated to connect.
First projection arrangement 210 is used to project the first fringe structure light within the very first time.
Second projection arrangement 220 is used to project the second fringe structure light within the second time.
Image acquiring device 260 is used to obtain the first image within the very first time, and obtains second within the second time
Image.
Optionally, image acquiring device 210 is gray scale camera or color camera, but preferably uses color camera, to the greatest extent may be used
Compatible first, second projection arrangement of energy.First, second projection arrangement can be the projector using film, or make
Can also be digital projector etc. with the projector of grating.Digital projector includes LCD projector, and LCOS projectors, DLP is thrown
Shadow machine etc..Due to first, second projection arrangement, timesharing independently projects first, second striped knot within first, second time respectively
Structure light, therefore the type parameter of first, second projection arrangement can be different., but it is preferable that first, second projection arrangement be with
Identical parameter.
It will be apparent to those skilled in the art that the above-mentioned selection of first, second projection arrangement, image acquiring device is exemplary
, the type and parameter of any image acquiring device and projection arrangement are selected without limitation on protection domain of the present utility model.
First, second image is respectively the image that first, second fringe structure light is projected onto on testee.It is optional
, first, second fringe structure light can be respectively the fringe structure light of spatial domain coding, the striated structure of time-domain coding
The structure light of light or spatial domain-time-domain hybrid coding.First, second fringe structure light can be a frame fringe structure light,
Multiframe fringe structure light can also be included, accordingly, first, second image can be a two field picture, can also include multiframe figure
Picture.
For example, according to one side of the present utility model, in intraoral scanning, first, second fringe structure light is preferred
Use the frame color fringe structure light that spatial domain is encoded to ensure the speed of intraoral scanning, then first, second projection arrangement is equal
Using the projector of color fringe structure light, the preferred color camera of image acquiring device, corresponding first, second figure can be projected
As being also respectively a color image frame.
For another example, according to other side of the present utility model, when formpiston is scanned outside mouth, first, second fringe structure light
Be the multiframe gray scale fringe structure light for being preferred to use time-domain coding to improve the precision that formpiston outside mouth is scanned, then first, the
Two projection arrangements preferably project the projector of gray scale fringe structure light to reduce cost, it would however also be possible to employ can project color-bar
The projector of line structure light to project gray scale fringe structure light to improve compatibility, the preferred gray scale camera of image acquiring device,
Color camera can be used, first, second image obtained accordingly is also respectively multiframe gray level image.
For another example, according to another aspect of the present utility model, when being scanned outside mouth, the first fringe structure light is to use the time
The multiframe gray scale fringe structure light of domain coding, the second fringe structure light is the frame color fringe structure encoded using spatial domain
Light, with raising sweep speed of being tried one's best while scanning accuracy is ensured.In this case, the first projection arrangement is preferably able to projection
The projector of gray scale fringe structure light, the second projection arrangement use can project the projector of color fringe structure light, and image is obtained
Device is taken to use color camera, the first image obtained is multiframe gray level image, the second image is a color image frame.
It will be apparent to those skilled in the art that intraoral scanning and the outer formpiston scanning of mouth are to clearly introduce of the present utility model show
The application scenarios of example property, are not intended to limit protection domain of the present utility model and are swept to can be only used for intraoral scanning and the outer formpiston of mouth
Retouch.Those skilled in the art will also recognize that when intraoral scanning and the outer formpiston of mouth are scanned, the selection for fringe structure light is also example
Property, the fringe structure light that intraoral scanning is necessarily encoded using spatial domain is not intended to limit, also the outer formpiston scanning of restricted entry is not inevitable
The fringe structure light of use time domain coding.
According to the utility model, within the very first time, sequential control circuit 270 controls the first projection arrangement 210 projection the
One fringe structure light, and control (such as Synchronization Control) image acquiring device to obtain the first view data；Within the second time,
Sequential control circuit 270 controls the second projection arrangement 220 to project the second fringe structure light, and controls (such as Synchronization Control) figure
As acquisition device obtains the second view data.
According to the utility model, the first baseline 280 is vertical with the stripe direction 290 of the first fringe structure light, wherein first
Baseline is the photocentre line of the first projection arrangement 210 and image acquiring device 260.Second baseline 285 and the second fringe structure light
Stripe direction 295 it is vertical, wherein the second baseline is the photocentre line of the second projection arrangement 220 and image acquiring device 260.
According to the utility model, the stripe direction of the fringe structure light of stripe direction 290 and second of the first fringe structure light
Exist between 295 and at least there is a fringe structure light and phase in angle, therefore the first fringe structure light and the second fringe structure light
It is not parallel to sharp keen step surface, so as to ensure do not adjust scanned object, the projection arrangement of three-dimensional scanning device and/
Or on the premise of the position relationship between the image acquiring device of three-dimensional scanning device, obtain the accurate three-dimensional of step surface structure
Digital model.
Angle between the direction of the stripe direction of fringe structure light and sharp keen step surface structure is bigger, then results in
The three-dimensional digitalization model of more accurate step surface structure.Therefore, the striped of stripe direction 290 and second of the first fringe structure light
Angle between the stripe direction 295 of structure light is preferably greater than or equal to 30 degree, and preferred angle is more than or equal to 60 degree.Most preferably
, angle is 90 degree, during so that the stripe direction of proper provision structure light is parallel with the direction of step surface structure, another striped
Angle between the stripe direction of structure light and the direction of step surface structure is maximum (i.e. 90 degree).
Timesharing 3 D scanning system 200 is used to obtain testee according to the first view data and/or the second view data
Three-dimensional digitalization model.According to one side of the present utility model, three-dimensional Time share scanning system 200 is according to the first view data
The three-dimensional digitalization model of testee is rebuild with the second view data.According to other side of the present utility model, three-dimensional point
When scanning system 200 judge the first view data or the second view data can meet rebuild testee three-dimensional digital
The condition of model, if it is possible to meet, then rebuild three dimensions of testee according to the first view data or the second view data
Word model, if it is impossible to meet rebuild three dimensions of testee according to the first view data and the second view data
Word model.
As shown in fig. 6, the first projection arrangement 210 and the second projection arrangement 220 include 1 projector.But, it is optional
, the first projection arrangement 210 can include the projector of 2 or more than 2, the second projection arrangement 220 can also include 2 or
The projector of more than 2, obtaining first, second view data of more horn of plenty.
According to embodiment 1 of the present utility model and embodiment 2, a kind of timesharing 3-D scanning method is additionally provided, including：
Step S10, obtains the first view data within the very first time.
Step S20, obtains the second view data within the second time.
Step S30, three-dimensional digitalization model is obtained according to the first view data and/or the second view data.
Wherein, first, second image is respectively the image that first, second fringe structure light is projected onto on testee.
There is angle, therefore between the stripe direction of first fringe structure light and the stripe direction of the second fringe structure light
At least there is a fringe structure light in one fringe structure light and the second fringe structure light and relatively sharp keen step surface is not parallel, from
And ensure that and obtained in the image for not adjusting scanned object, the projection arrangement of three-dimensional scanning device and/or three-dimensional scanning device
On the premise of taking the position relationship between device, the accurate three-dimensional digitalization model for obtaining step surface structure.
Angle between the direction of the stripe direction of fringe structure light and sharp keen step surface structure is bigger, then results in
The three-dimensional digitalization model of more accurate step surface structure.Therefore, the striped of stripe direction 290 and second of the first fringe structure light
Angle between the stripe direction 295 of structure light is preferably greater than or equal to 30 degree, and preferred angle is more than or equal to 60 degree.Most preferably
, angle is 90 degree, during so that the stripe direction of a proper fringe structure light is parallel with the direction of step surface structure, another striped
Angle between the stripe direction of structure light and the direction of step surface structure is maximum (i.e. 90 degree).
According to one side of the present utility model, step S30 further comprises, according to the first view data and the second image
Data obtain three-dimensional digitalization model.According to other side of the present utility model, step S30 further comprises, judges first
View data or the second view data disclosure satisfy that the condition for rebuilding three-dimensional digitalization model, if it is possible to meet, then according to the
One view data or the second view data rebuild three-dimensional digitalization model, if it is impossible to meet according to the first view data
Three-dimensional digitalization model is obtained with the second view data.
In addition, according to disclosed specification of the present utility model, skill of other realizations of the present utility model for this area
Art personnel are obvious.The various aspects of embodiment and/or embodiment can be used for this reality individually or with any combinations
With in new system and method.Specification and example therein should only be regarded solely as exemplary, reality of the present utility model
Scope and spirit are represented by appended claims.
Claims (6)
1. a kind of timesharing 3 D scanning system, including：First projection arrangement, the second projection arrangement, image acquiring device, sequential control
Circuit processed, wherein, sequential control circuit and the first projection arrangement, the second projection arrangement and image acquiring device are communicated to connect；
First projection arrangement is used to project the first fringe structure light within the very first time；
Second projection arrangement is used to project the second fringe structure light within the second time；
Image acquiring device is used to obtain the first image within the very first time, and obtains within the second time the second image；
Sequential control circuit controls first, second projection arrangement to project first, second fringe structure light, and controls image to obtain
Device obtains first, second view data；
First, second image is respectively the image that first, second fringe structure light is projected onto on testee；
First baseline is vertical with the stripe direction of the first fringe structure light, is obtained wherein the first baseline is the first projection arrangement with image
Take the photocentre line of device；Second baseline is vertical with the stripe direction of the second fringe structure light, wherein the second baseline is the second throwing
The photocentre line of image device and image acquiring device；
There is angle between the stripe direction of first fringe structure light and the stripe direction of the second fringe structure light.
2. timesharing 3 D scanning system according to claim 1, it is characterised in that the striped of first fringe structure light
Angle between the stripe direction of direction and the second fringe structure light is more than or equal to 30 degree.
3. timesharing 3 D scanning system according to claim 1, it is characterised in that the striped of first fringe structure light
Angle between the stripe direction of direction and the second fringe structure light is more than or equal to 60 degree.
4. timesharing 3 D scanning system according to claim 1, it is characterised in that the striped of first fringe structure light
Greatly 90 degree of angle between the stripe direction of direction and the second fringe structure light.
5. according to claim 1-4 any described timesharing 3 D scanning system, it is characterised in that first projection arrangement
Projector including 1 or more than 2, the second projection arrangement also includes the projector of 1 or more than 2.
6. timesharing 3 D scanning system according to claim 5, it is characterised in that described image acquisition device includes 1 phase
Machine.
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| CN201621228539.3U CN206514822U (en) | 2016-10-25 | 2016-10-25 | Timesharing 3 D scanning system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106580506A (en) * | 2016-10-25 | 2017-04-26 | 成都频泰医疗设备有限公司 | Time-sharing three-dimensional scanning system and method |
| CN111708175A (en) * | 2020-06-29 | 2020-09-25 | 国科光芯(海宁)科技股份有限公司 | Structured light projection device |
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2016
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106580506A (en) * | 2016-10-25 | 2017-04-26 | 成都频泰医疗设备有限公司 | Time-sharing three-dimensional scanning system and method |
| CN106580506B (en) * | 2016-10-25 | 2018-11-23 | 成都频泰医疗设备有限公司 | Timesharing 3 D scanning system and method |
| CN111708175A (en) * | 2020-06-29 | 2020-09-25 | 国科光芯(海宁)科技股份有限公司 | Structured light projection device |
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