CN201335934Y - Relighting-based image acquisition device - Google Patents
Relighting-based image acquisition device Download PDFInfo
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- CN201335934Y CN201335934Y CNU2009200673449U CN200920067344U CN201335934Y CN 201335934 Y CN201335934 Y CN 201335934Y CN U2009200673449 U CNU2009200673449 U CN U2009200673449U CN 200920067344 U CN200920067344 U CN 200920067344U CN 201335934 Y CN201335934 Y CN 201335934Y
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Abstract
The utility model relates to a relighting-based image acquisition device in the image acquisition technical field. The image acquisition device comprises an object tray, a camera slide rail, a camera fixating rack, a projector or a light source fixer, a projector bracket, a projector slider, an instrument table, a slide supporting rod, an object tray and a camera slideway rotating shaft. The object tray and the camera slide rail are fixed in the center of the instrument table through the object tray and the camera slideway rotating shaft; the camera fixating rack is fixed on the camera slide rail; two sides of the projector or the light source fixer are fixed on two sides of the projector bracket through the projector slider in parallel; the projector bracket is fixed on two sides of the instrument table; and the projector bracket is supported on the instrument table through the slide supporting rod. The image acquisition device maximally expands the dimensionalities of view and light source free degree, and can be simultaneously applied to algorithms of far-field light relighting and near-field light relighting.
Description
Technical field
The utility model relates to the device in a kind of acquisition technology field, and specifically, what relate to is a kind of heavy illumination base image collecting device.
Background technology
At present, because the diversity of heavy illumination algorithm, of a great variety for the design of gathering heavy illumination base image device.Have at territory far away light heavily illumination gather the device of basic image, the harvester that in " Acquiring theReflectance Field of a Human Face ", adopts as Debevec; Have at nearly territory light heavily illumination gather the device of basic image, as the basic image collecting device that adopts in " Relighting with 4D Incident Light Fields ".Their each have their own design feature, can be good at gathering the needed basic image of related algorithm, but because the mode that realizes has nothing in common with each other, can not realize the compatible of function, simultaneously, the light source that these devices are supported, the degree of freedom of video camera viewpoint are quite limited, can not satisfy the expansion on the degree of freedom dimension.A kind of so basic image collecting device just can not satisfy the heavily demand of the different research directions in illumination field.
Find through literature search prior art, " the Relighting with 4D Incident Light Fields " that Vincent Masselus etc. delivered on the SIGGRAPH in 2003 (" 4 heavily illumination of dimension incident field ", proposed in this article at the heavy illumination device design proposal of gathering basic image of nearly territory light, its deficiency is: 1, this harvester can not be by the rotation of procedure auto-control object pallet; 2, this harvester can not be regulated light source to the distance between the object; 3, the conversion camera position can only be come by the artificial video camera of putting in the position that this harvester can not controlling automatically video camera at every turn.
The utility model content
The purpose of this utility model is at the deficiencies in the prior art, and a kind of heavy illumination base image collecting device is provided, and can overcome existing heavily illumination base image acquisition instrument light source, the viewpoint degree of freedom is few, and same instrument can not be used for the deficiencies of different heavy illumination algorithms.
The utility model is achieved through the following technical solutions, the utility model comprises the object pallet, the camera sliding rail, the camera fixed mount, projector or light source fixator, projector mount, the projector slider, instrument platform, sliding supporting bar, object pallet collection video camera slideway rotation axis, wherein: object pallet and camera sliding rail are fixed in the center of instrument platform by object pallet and video camera slideway rotation axis, the camera fixed mount is fixed in the camera sliding rail, the both sides of projector or light source fixator by projector slider secured in parallel in the both sides of projector mount and can before and after slide, fix the position by the adjustable screw on the projector slider.Projector mount is fixed in the both sides of instrument platform, and guarantee object pallet and video camera slideway rotation axis mid point at two point of fixity line, projector mount is supported on the instrument platform with sliding supporting bar, can control projector mount and surface level angulation by regulating sliding supporting bar.
Described projector mount can pivot, the angle of control projector incident ray and surface level, and angle can be the 0-90 degree, realizes the control of light source incident angle.Projector slides before and after can controlling on projector mount, to reach the distance of regulating light source and object.
Described object pallet is at the mid point of projector mount axis, and the object pallet can rotate with programmed control, and object is put on the object pallet.
Described camera sliding rail is coaxial with the object pallet, the camera fixed mount is fixed in the camera sliding rail, fix by detachable screw, the camera fixed mount is all the time perpendicular to the tangent line of camera sliding rail, directed towards object pallet center, the camera sliding rail becomes 1/4 circular arc, and the camera fixed mount can slide on the camera sliding rail, regulate the shooting angle of camera, can make shooting angle become the 0-90 degree with surface level.Whole camera sliding rail can pivot by programmed control, by the control of two coaxial motors, can with the separate rotation of object pallet, also can rotate simultaneously.When camera and object pallet rotated simultaneously, then the angle of object and incident ray changed.When the object pallet does not change, during the rotation of camera support, then be the situation that the viewpoint angle changes.
Territory far away light heavily illumination all light that light source is sent is considered as light parallel and that attribute is consistent, nearly territory light heavily illumination thinks that then the direction of the light that same light source sends is different, character such as the intensity of light, color are all inequality, and light source can produce special texture.In order to simulate the uniform illumination character of territory far away light source, can be used for obtaining the specific nature of nearly territory light source different light rays again simultaneously, the utility model is selected from the light source of projector as basic image acquisition.When projecting apparatus screen is set to entirely hundred the time, projector light source can be considered as territory far away light source, and when the pixel of control projector, make when only throwing the pixel piece of several pixels compositions at every turn, with regard to every emergent ray of energy analog light source, at this moment, projector is exactly a nearly territory light source.
The beneficial effects of the utility model are, have expanded the dimension of viewpoint and light source degree of freedom to greatest extent, also can enoughly apply to the heavily heavy algorithm of illumination of illumination and nearly territory light of territory far away light simultaneously simultaneously.Instrument is robotization to greatest extent, has made things convenient for the step of gathering basic image, provides a general platform for studying various heavy illumination algorithms.
Description of drawings
Fig. 1 is the heavily structural representation of illumination base image collecting device of the utility model.
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is elaborated: present embodiment is being to implement under the prerequisite with technical solutions of the utility model; provided detailed embodiment and concrete operating process, but protection domain of the present utility model is not limited to following embodiment.
As shown in Figure 1, present embodiment comprises object pallet 1, camera sliding rail 2, camera fixed mount 3, projector or light source fixator 4, projector mount 5, projector slider 6, instrument platform 7, sliding supporting bar 8, object pallet and video camera slideway rotation axis 9, projector sliding rail 10.Wherein: object pallet 1 and camera sliding rail 2 are fixed in the center of instrument platform 7 by object pallet and video camera slideway rotation axis 9, camera fixed mount 3 is fixed in camera sliding rail 2, the both sides of projector or light source fixator 4 by projector slider 6 secured in parallel in the both sides of projector mount 5 and can before and after slide, fix the position by the adjustable screw on the projector slider 6.Projector mount 5 is fixed in the both sides of instrument platform 7, and guarantee object pallet and video camera slideway rotation axis 9 mid point at 5 two point of fixity lines of projector mount, projector mount 5 usefulness sliding supporting bars 8 are supported on the instrument platform 7, can control projector mount 5 and surface level angulation by regulating sliding supporting bar 8.
Described object pallet 1 is used for support and is used for the object of heavily illumination.Pallet can be by programmed control around axle 9 rotations.
Described camera sliding rail 2, radius is 40cm, becomes 1/4 circular arc, the camera fixed mount 3 on the slideway can slide in orbit from becoming 0 ° to slide into 90 ° with level, and can guarantee all the time that camera aims at object pallet 1 center.
Described camera fixed mount 3, can on camera sliding rail 2, slide, and oppositely extend apart from 10cm to camera sliding rail 2 radial directions from the point of fixity of camera fixed mount 3 with camera sliding rail 2, guarantee that camera is 50cm to object distance, but guarantee the camera shape library, guarantee that also the camera slideway can not photographed by video camera simultaneously.Be provided with the camera fixed orifice above the camera fixed mount 3.
Described projector or light source fixator 4 can horizontally slip along projector sliding rail 10, and adjusting position guarantees the object on projector or the source alignment object pallet 1.
Described projector mount 5 can stir, and can become arbitrarily angled fixing in 0 °～90 ° with level.The length of support is 140cm, and width is 120cm.There is protractor the support both sides, and guaranteeing can be accurately when adjusting angle.
Described projector slider 6 can slide on projector mount 5, and projector distance of object on the object pallet 1 can be changed between 20cm～120cm.There is scale projector mount 5 both sides, reference in the time of can supplying to regulate.
Described instrument platform 7 is used for bearing tray, camera support 3, projector mount 5.
Described sliding supporting bar 8 is arranged on projector mount 5 both sides, and sliding supporting bar 8 can be regulated the angle of projector mount 5, can locked sliding supporting bar 8 in required angle, and make projector mount 5 fixing.
Described object pallet collection video camera slideway rotation axis 9, this is the design of a twin shaft, guarantees object pallet 1 and camera sliding rail 2 independent rotation separately.This axle and has DLL (dynamic link library) by Electric Machine Control, can control by computer.
This example in use, fixing camera on camera fixed mount 3 at first, then with camera fixed mount 3 fixed angle as required in camera sliding rail 2, object is positioned on the object pallet 1, projector is fixed on projector or the light source fixator 4, projector or light source fixator 4 slide on projector sliding rail 10 to guarantee projector photocentre aligning object center, regulate projector slider 6 and adjust the distance of projector to object, regulate the angle of projector mount 5 and surface level by regulating sliding supporting bar 8, guarantee that incident angle is the required angle of experiment, after finishing above-mentioned preparation, just can begin to gather and test, when gathering, by programmed control object pallet and the angle of video camera slideway rotation axis 9 real-time conversion body pallets 1 and the angle of camera sliding rail 2, realize the variation of light source and incident ray incident angle.Whole experiment is all finished on instrument platform 7.
This example adopts the light source of projector as basic image collecting device, provide one to overlap heavily illumination acquisition instrument, this instrument has been expanded the dimension of viewpoint and light source degree of freedom to greatest extent, also can enoughly apply to simultaneously the heavily heavy algorithm of illumination of illumination and nearly territory light of territory far away light simultaneously.Provide a general platform for studying various heavy illumination algorithms.Simultaneously, this instrument also can be used for obtaining other experiments such as object BRDF function, collection Novel View algorithm base image, and very strong platform versatility and purposes extendability are arranged.
Claims (8)
1, a kind of heavy illumination base image collecting device, it is characterized in that comprising the object pallet, the camera sliding rail, the camera fixed mount, projector or light source fixator, projector mount, the projector slider, instrument platform, sliding supporting bar, object pallet collection video camera slideway rotation axis, wherein: object pallet and camera sliding rail are fixed in the center of instrument platform by object pallet and video camera slideway rotation axis, the camera fixed mount is fixed in the camera sliding rail, projector slider secured in parallel is passed through in the both sides of projector mount in the both sides of projector or light source fixator, projector mount is fixed in the both sides of instrument platform, object pallet and video camera slideway rotation axis are at the mid point of two point of fixity lines of projector mount, and projector mount is supported on the instrument platform by sliding supporting bar.
2, heavy illumination base image collecting device according to claim 1, it is characterized in that: described camera sliding rail is coaxial with the object pallet, the camera fixed mount is fixed in the camera sliding rail by detachable screw, the camera fixed mount is perpendicular to the tangent line of camera sliding rail, directed towards object pallet center, the camera sliding rail becomes 1/4 circular arc.
3, heavy illumination base image collecting device according to claim 2, it is characterized in that: described camera sliding rail, the angle that the camera fixed mount on it slides in orbit are 0 ° to 90 °.
4, heavy illumination base image collecting device according to claim 1 is characterized in that: be provided with the camera fixed orifice above the described camera fixed mount.
5, heavy illumination base image collecting device according to claim 1, it is characterized in that: described object pallet is at the mid point of projector mount axis.
6, heavy illumination base image collecting device according to claim 1 or 5 is characterized in that: described projector mount, the angular range of itself and surface level is 0 °～90 °.
7, heavy illumination base image collecting device according to claim 1 or 5, it is characterized in that: described projector mount, there is protractor its both sides.
8, heavy illumination base image collecting device according to claim 1 is characterized in that: described object pallet collection video camera slideway rotation axis is a cross-compound arrangement, and is provided with DLL (dynamic link library).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200673449U CN201335934Y (en) | 2009-01-22 | 2009-01-22 | Relighting-based image acquisition device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200673449U CN201335934Y (en) | 2009-01-22 | 2009-01-22 | Relighting-based image acquisition device |
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| Publication Number | Publication Date |
|---|---|
| CN201335934Y true CN201335934Y (en) | 2009-10-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNU2009200673449U Expired - Fee Related CN201335934Y (en) | 2009-01-22 | 2009-01-22 | Relighting-based image acquisition device |
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| CN (1) | CN201335934Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101917637A (en) * | 2010-06-24 | 2010-12-15 | 清华大学 | Relighting method and system based on free-viewing angle light transmission matrix |
| CN103292675A (en) * | 2013-05-03 | 2013-09-11 | 浙江九诺汽车空调有限公司 | Automobile air conditioner rigid pipe bent angle detecting device |
| CN110376204A (en) * | 2019-07-02 | 2019-10-25 | 东莞理工学院 | A kind of vision inspection apparatus of the adjustable detection position of product packaging |
| CN113382166A (en) * | 2021-06-08 | 2021-09-10 | 北京房江湖科技有限公司 | Optical center alignment method and device for image pickup equipment, storage medium and electronic equipment |
-
2009
- 2009-01-22 CN CNU2009200673449U patent/CN201335934Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101917637A (en) * | 2010-06-24 | 2010-12-15 | 清华大学 | Relighting method and system based on free-viewing angle light transmission matrix |
| CN101917637B (en) * | 2010-06-24 | 2012-10-10 | 清华大学 | Relighting method and system based on free-viewing angle light transmission matrix |
| CN103292675A (en) * | 2013-05-03 | 2013-09-11 | 浙江九诺汽车空调有限公司 | Automobile air conditioner rigid pipe bent angle detecting device |
| CN103292675B (en) * | 2013-05-03 | 2015-11-25 | 浙江九诺汽车空调有限公司 | Automobile air conditioner rigid pipe bent angle pick-up unit |
| CN110376204A (en) * | 2019-07-02 | 2019-10-25 | 东莞理工学院 | A kind of vision inspection apparatus of the adjustable detection position of product packaging |
| CN110376204B (en) * | 2019-07-02 | 2022-02-01 | 东莞理工学院 | Visual detection device capable of adjusting detection position for product packaging |
| CN113382166A (en) * | 2021-06-08 | 2021-09-10 | 北京房江湖科技有限公司 | Optical center alignment method and device for image pickup equipment, storage medium and electronic equipment |
| CN113382166B (en) * | 2021-06-08 | 2022-07-15 | 贝壳找房(北京)科技有限公司 | Optical center alignment method and device for image pickup equipment, storage medium and electronic equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091028 Termination date: 20120122 |