CN102012627B - Binocular stereo camera and 3d imaging system - Google Patents
Binocular stereo camera and 3d imaging system Download PDFInfo
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- CN102012627B CN102012627B CN201010565863.5A CN201010565863A CN102012627B CN 102012627 B CN102012627 B CN 102012627B CN 201010565863 A CN201010565863 A CN 201010565863A CN 102012627 B CN102012627 B CN 102012627B
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- total reflection
- reflection prism
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- video camera
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Abstract
The invention is applied in the technical field of photography, and provides a binocular stereo camera and a 3-dimensional (3D) imaging system. The binocular stereo camera comprises a first photographing unit, a second photographing unit and a stereo baseline width adjusting mechanism for adjusting the distance between lenses of the first photographing unit and the second photographing unit. By adjusting the distance between the lenses of the two photographing units, the stereo baseline width is increased along with the increment of the distance between the camera and a photographed object, or the stereo baseline width is reduced along with the reduction of the distance between the camera and the photographed object, so that the stereo baseline width is designed into a mode of adjusting along with the focal length of the camera; and the binocular stereo camera has excellent stereo effect during close shot and long shot.
Description
Technical field
The invention belongs to the camera technique field, relate in particular to a kind of binocular solid video camera and 3D imaging system.
Background technology
The binocular solid video camera is meant through two apish eyes of image unit, carries out the device of camera work simultaneously.The video content of its shooting comprises the video of two angles, when showing, delivers to respectively in two eyes of beholder through 3D imaging equipment, and the beholder can produce the stereoscopic vision of being in the action.The spacing of two image unit camera lenses is called stereo base width (Stereo base), camera lens and when to be taken the photograph distance between the scenery be 50 times of stereo base width, stereoeffect was best.
Usually, two camera lenses of existing binocular solid video camera are fixing side by side, and promptly the stereo base fixed width is constant.The video camera of this stereo base fixed width stereoeffect when close shot and vista shot is poor.
Summary of the invention
The purpose of the embodiment of the invention is to provide a kind of binocular solid video camera, is intended to solve the problem of existing binocular solid video camera stereoeffect difference when close shot and vista shot.
The embodiment of the invention is to realize like this; A kind of binocular solid video camera; The stereo base width adjustment mechanism that comprises first image unit and second image unit and be used to regulate distance between said first image unit and the second image unit camera lens, the position relative fixed of said first image unit and second image unit.
Another purpose of the embodiment of the invention is to provide a kind of 3D imaging system, and said 3D imaging system adopts above-mentioned binocular solid video camera.
The embodiment of the invention is through regulating the distance between two image unit camera lenses; Make the stereo base width with video camera and taken the photograph distance between scenery and increase and to widen; Or make the stereo base width with video camera and taken the photograph distance between scenery and reduce and narrow down; Like this stereo base width is designed to the mode that can adjust with focal length of camera, binocular solid video camera stereoeffect when close shot and vista shot is splendid.
Description of drawings
Fig. 1 is the structural representation of the binocular solid video camera that provides of first embodiment of the invention;
Fig. 2 is the structural representation of the binocular solid video camera that provides of second embodiment of the invention;
Fig. 3 is the fundamental diagram of the binocular solid video camera that provides of second embodiment of the invention;
Fig. 4 is the structural representation of the binocular solid video camera that provides of third embodiment of the invention;
Fig. 5 is the fundamental diagram of the binocular solid video camera that provides of third embodiment of the invention;
Fig. 6 is the structural representation of the binocular solid video camera that provides of fourth embodiment of the invention.
Fig. 7 is the control circuit block diagram of the binocular solid video camera that provides of the embodiment of the invention.
Embodiment
In order to make the object of the invention, technical scheme and advantage clearer,, the present invention is further elaborated below in conjunction with accompanying drawing and embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
The embodiment of the invention is through regulating the distance between two image unit camera lenses; Make the stereo base width with video camera and taken the photograph distance between scenery and increase and to widen; Or make the stereo base width with video camera and taken the photograph distance between scenery and reduce and narrow down; Like this stereo base width is designed to the mode that can adjust with focal length of camera, binocular solid video camera stereoeffect when close shot and vista shot is splendid.
The stereo base width adjustment mechanism that the binocular solid video camera that the embodiment of the invention provides comprises first image unit and second image unit and is used to regulate distance between said first image unit and the second image unit camera lens.
The 3D imaging system that the embodiment of the invention provides adopts above-mentioned binocular solid video camera.
Below in conjunction with specific embodiment realization of the present invention is described in detail.
Embodiment one
Stereo base width adjustment mechanism 13 as shown in Figure 1, that the binocular solid video camera that the embodiment of the invention provides comprises first image unit 11 and second image unit 12 and is used to regulate distance between this first image unit 11 and second image unit, 12 camera lenses.When the binocular solid video camera is taken, by first image unit 11 and second image unit, the 12 picked-up first scape picture and the second scape pictures, the center of this first scape picture and the second scape picture is all overlapped with the center of being taken the photograph scenery respectively.During vista shot, though through stereo base width adjustment mechanism 13 increase between first image units 11 and second image unit, 12 camera lenses distance stereo base width with video camera with taken the photograph widening between scenery apart from increase; When close shot is taken; Even reduce distance stereo base width between first image unit 11 and second image unit, 12 camera lenses with video camera and taken the photograph distance between scenery and reduce and narrow down through stereo base width adjustment mechanism 13, binocular solid video camera stereoeffect when close shot and vista shot is splendid like this.
Particularly, stereo base width adjustment mechanism 13 comprise with first scape look like to import first image unit 11 the first movable total reflection prism 131, second scape is looked like to import the second movable total reflection prism 132 of second image unit 12 and supplies the first movable total reflection prism 131 and guide rail 14 that the second movable total reflection prism 132 slides.First image unit 11 and second image unit 12 back-to-back, two camera lenses are in same straight line, towards on the contrary, are convenient to each scape picture is imported corresponding with it image unit.At this moment; The first movable total reflection prism 131 is equivalent to the camera lens of first image unit 11; The second movable total reflection prism 132 is equivalent to the camera lens of second image unit 12, and the distance that the first movable total reflection prism 131 and the second movable total reflection prism are 132 is the stereo base width.
The present embodiment slip first movable total reflection prism 131 and the second movable total reflection prism 132 are scalable stereo base width, and be simple in structure, simple operation.In addition, first image unit 11, second image unit 12 and guide rail 14 are fixed in main support 15, only move first total reflection prism 131 and second total reflection prism 132, fuselage is stablized, and the total reflection prism translational speed is fast, and consumed energy is few.
Embodiment two
As one embodiment of the present of invention; Stereo base width adjustment mechanism 13 comprise with first scape look like to import first image unit 11 first fixedly total reflection prism 141, with first scape look like to conduct to first fixedly total reflection prism 141 the first movable total reflection prism 131, with second scape look like to import second image unit 12 second fixedly total reflection prism 142, with second scape look like to conduct to second fixedly total reflection prism 142 the second movable total reflection prism 132 and supply the first movable total reflection prism 131 and guide rail 14 that the second movable total reflection prism 132 slides, as shown in Figure 2.With first image unit 11, second image unit 12, first fixedly total reflection prism 141, second fixedly total reflection prism 142 and guide rail 14 are fixed in main support 15.First image unit 11 and the smooth placement in second image unit, 12 sides, two camera lenses are towards identical, and close together is beneficial to close shot and takes.At this moment; The first movable total reflection prism 131 is equivalent to the camera lens of first image unit 11; The second movable total reflection prism 132 is equivalent to the camera lens of second image unit 12, and the distance that the first movable total reflection prism 131 and the second movable total reflection prism are 132 is the stereo base width.
As shown in Figure 3, it is opposite with the direction of motion of the second movable total reflection prism 142 on guide rail 14 with bend 144, the first movable total reflection prisms 131 of being located at the guide rail two ends that guide rail 14 has a flat part 143, and speed is equal.Particularly; When the first movable total reflection prism 131 and the second movable total reflection prism 132 move on the flat part 143 of guide rail; γ remains unchanged; The reflecting surface of the first movable total reflection prism 131 and the second movable total reflection prism 132 and the angle δ of binocular solid video camera axis are 45 °-γ/4, and the angle of scenery to first image unit 11 and second image unit 12 is taken when wherein γ is stereoeffect the best.When focus of camera transfers to infinity; When the first movable total reflection prism 131 and the second movable total reflection prism 132 move to bend 144 by the flat part 143 of guide rail; γ trends towards 0 °; The guide rail two ends correspondingly increase to 45 ° to the movable total reflection prism 131 in rear curved γ/4, the first and the reflecting surface of the second movable total reflection prism 132 and the angle δ of binocular solid video camera axis gradually, make the light of two image units of entering trend towards parallel gradually.Can increase the subtense angle of distant view to two image unit camera lenses like this, the vista shot effect is good, when the film post-production, need not to adjust through the software computing, saves human and material resources.
As shown in Figure 7; This binocular solid video camera also has in order to control the control circuit of the first movable total reflection prism 131 and second movable total reflection prism 132 motions; The first movable total reflection prism 131 and the second movable total reflection prism 132 are by motor driven (can by same motor driven or different motor driven); Control circuit comprises the focus controlling module 41 that is used to obtain the focal length parameter and according to the motor driving module 42 of focal length calculation of parameter revolution parameter; Focus controlling module 41 is electrically connected with first image unit 11 and second image unit 12 respectively, and motor driving module 42 is electrically connected with motor.After focus controlling module 41 receives the focal length of camera of user's manual adjustments, this focal length parameter is sent to motor driving module 42 and two image units; Image unit is according to this its camera parameter of focal length parameter adjustment; Motor driving module 42 goes out each revolution parameter according to this focal length calculation of parameter; And the revolution parameter is sent to each motor; Thereby adjust two distance (being the stereo base width) and lens directions thereof between the image unit, reach the purpose that cooperates image unit to work as front focal length.
Embodiment three
As an alternative embodiment of the invention; Stereo base width adjustment mechanism 13 comprises first adjutage 21, second adjutage 22, be located at these first adjutage, 21 1 ends first rotating shaft 31, be located at second rotating shaft 32 of these second adjutage, 22 1 ends and be located at this first adjutage 21 and the 3rd rotating shaft 33 of second adjutage, 22 other ends; First image unit 11 is located at first rotating shaft 31; Second image unit 12 is located at second rotating shaft 32, and is as shown in Figure 4.Rotate the 3rd rotating shaft 33, make the sense of rotation of first adjutage 31 and second adjutage 32 opposite, can and be taken the photograph the stereo base width of the distance adjustment binocular solid video camera between scenery according to the binocular solid video camera.The embodiment of the invention drives adjutage by rotating shaft and smoothly rotates, and the picture of twice picked-up is more smooth and easy before and after the binocular solid video camera.
As shown in Figure 7; This binocular solid video camera also has in order to control the control circuit that above-mentioned each rotating shaft is rotated, and each rotating shaft is driven by first motor 51 like first rotating shaft 31 by corresponding with it motor driven; Second rotating shaft 32 is driven by second motor 52; The 3rd rotating shaft 33 is driven by the 3rd motor 53, and the 4th rotating shaft 34 is driven by the 4th motor 54, and the 5th rotating shaft 35 is driven by the 5th motor 55.This control circuit comprises the focus controlling module 41 that is used to obtain the focal length parameter and according to the motor driving module 42 of this focal length calculation of parameter revolution parameter; Focus controlling module 41 is electrically connected with first image unit 11 and second image unit 12 respectively, and motor driving module 42 is electrically connected with each motor respectively.After focus controlling module 41 receives the focal length of camera of user's manual adjustments, this focal length parameter is sent to motor driving module 42 and two image units; Image unit is according to this its camera parameter of focal length parameter adjustment; Motor driving module 42 goes out the rotational parameters of each motor according to this focal length calculation of parameter; And this rotational parameters is sent to each motor; Thereby adjust two distance (being the stereo base width) and lens directions thereof between the image unit, reach the purpose that cooperates image unit to work as front focal length.
As shown in Figure 5, motor driving module 42 bases array function down drive each motor,
When f＞Lcsc (γ/2):
α＝90°，
β＝arccos(L/f)；
When f≤Lcsc (γ/2):
α＝arcsin(f·sin(γ/2)/L)，
β＝180°-α-γ/2；
Wherein f is the focal length of first image unit 11 or second image unit 12, and L is the length of first adjutage 21 or second adjutage 22, and γ is the stereoeffect angle of scenery to first image unit 11 and second image unit 12 that be taken when best;
α is the angle of first adjutage 21 or second adjutage 22 and binocular solid video camera axis, and β is the angle of first adjutage 21 and first image unit, 11 camera lens optical axis or the angle between second adjutage 21 and second image unit, 12 camera lens optical axis.
Should be appreciated that and can one of them image unit be fixed, regulate the position and the lens direction thereof of another image unit, also can realize same function and effect.
Embodiment four
As an alternative embodiment of the invention; Stereo base width adjustment mechanism 13 comprises first adjutage 21, second adjutage 22, second rotating shaft 32 and the 5th rotating shaft 35 being located at first rotating shaft 31 and the 4th rotating shaft 34 at first adjutage, 21 two ends and being located at second adjutage, 22 two ends; First image unit 11 is located at this first rotating shaft 31; Second image unit 12 is located at this second rotating shaft 32, and is as shown in Figure 6.Likewise, first adjutage 21 and second adjutage 22 are rotated in opposite direction, can and be taken the photograph the stereo base width of the distance adjustment binocular solid video camera between scenery according to the binocular solid video camera through rotating the 4th rotating shaft 34 and the 5th rotating shaft 35.
This binocular solid video camera is taken scenery; When especially close shot is taken; First rotating shaft 31 and second rotating shaft 32 are rotated in opposite direction, and the focal length parameter that the angle basis between first image unit 11 and second image unit, 12 camera lenses is preset increases or reduces, and further strengthens the stereoeffect of binocular solid video camera when taking the scene of the various depth of field; Especially make two captured width of cloth pictures of close shot have bigger overlapping region, stereoscopic sensation is strong.Can adjust " going out screen " and " going into screen " effect of video through the angle of regulating between this first image unit 11 and second image unit, 12 camera lenses simultaneously; Thereby make " going out screen " and " going into screen " best results; Wherein " go out screen " is meant that scenery on the screen looks like outside screen and floating, " going into screen " on the contrary then.
For making the 3rd rotating shaft 33 or the 4th rotating shaft 34 and the 5th rotating shaft 35 rotation more firm, a main support 61 is located in the 3rd rotating shaft 33 or the 4th rotating shaft 34 and the 5th rotating shaft 35.
The embodiment of the invention is through regulating the distance between two image unit camera lenses; Make the stereo base width with video camera and taken the photograph distance between scenery and increase and to widen; Or make the stereo base width with video camera and taken the photograph distance between scenery and reduce and narrow down; Like this stereo base width is designed to the mode that can adjust with focal length of camera, binocular solid video camera stereoeffect when close shot and vista shot is splendid.Simultaneously, can two image units be fixed, through regulating the distance between two movable total reflection prisms, thereby regulate the stereo base width of binocular solid video camera, fuselage is stable, and the total reflection prism translational speed is fast, and consumed energy is few.In addition; Two image units are divided into first rotating shaft and second rotating shaft; The focal length parameter that angle basis between first image unit and the second image unit camera lens is preset increases or reduces; Further strengthen the stereoeffect of binocular solid video camera when taking the scene of the various depth of field, especially make two captured width of cloth pictures of close shot have bigger overlapping region, stereoscopic sensation is strong.
The above is merely preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of within spirit of the present invention and principle, being done, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (7)
1. binocular solid video camera; Comprise first image unit and second image unit; It is characterized in that; Said binocular solid video camera also comprises the stereo base width adjustment mechanism that is used to regulate distance between said first image unit and the second image unit camera lens, the position relative fixed of said first image unit and second image unit.
2. binocular solid video camera as claimed in claim 1; It is characterized in that, said stereo base width adjustment mechanism comprise with first scape look like to import said first image unit the first movable total reflection prism, second scape is looked like to import the second movable total reflection prism of said second image unit and supplies the said first movable total reflection prism and guide rail that the second movable total reflection prism slides.
3. binocular solid video camera as claimed in claim 1; It is characterized in that, said stereo base width adjustment mechanism comprise with first scape look like to import said first image unit first fixedly total reflection prism, with said first scape look like to conduct to said first fixedly total reflection prism the first movable total reflection prism, with second scape look like to import said second image unit second fixedly total reflection prism, with said second scape look like to conduct to said second fixedly total reflection prism the second movable total reflection prism and supply the said first movable total reflection prism and guide rail that the second movable total reflection prism slides.
4. like claim 2 or 3 described binocular solid video cameras; It is characterized in that; Said guide rail has a flat part and the bend of being located at said guide rail two ends, and the said first movable total reflection prism is opposite with the direction of motion of the second movable total reflection prism on said guide rail, and speed equates.
5. binocular solid video camera as claimed in claim 4; It is characterized in that; When the said first movable total reflection prism and the second movable total reflection prism move on the flat part of said guide rail; γ remains unchanged, and the reflecting surface of the said first movable total reflection prism and the second movable total reflection prism and the angle δ of said binocular solid video camera axis are 45 °-γ/4, and the angle of scenery to said first image unit and second image unit is taken when wherein γ is stereoeffect the best; When said binocular solid focus of camera is transferred to infinity; When the said first movable total reflection prism and the second movable total reflection prism move to bend by the flat part of said guide rail; γ trends towards 0 °, and the reflecting surface of the said first movable total reflection prism and the second movable total reflection prism and the angle of said binocular solid video camera axis correspondingly increase to 45 °.
6. binocular solid video camera as claimed in claim 5; It is characterized in that; Said binocular solid video camera also has in order to control the control circuit of the said first movable total reflection prism and the second movable total reflection prism motion; The said first movable total reflection prism and the second movable total reflection prism are by motor driven; Said control circuit comprises the focus controlling module that is used to obtain the focal length parameter and according to the motor driving module of said focal length calculation of parameter revolution parameter, said focus controlling module is electrically connected with said first image unit and second image unit respectively, and said motor driving module is electrically connected with motor.
7. a 3D imaging system is characterized in that, said 3D imaging system adopts like each described binocular solid video camera in the claim 1～6.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US11846791B2 (en) * | 2021-04-21 | 2023-12-19 | Guangzhou Luxvisions Innovation Technology Limited | Compound prism module and image acquisition module |
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| CN103365064B (en) * | 2013-07-25 | 2015-12-09 | 中国传媒大学 | Three-dimensional film filming apparatus |
| US9544574B2 (en) * | 2013-12-06 | 2017-01-10 | Google Inc. | Selecting camera pairs for stereoscopic imaging |
| GB2533103A (en) * | 2014-12-09 | 2016-06-15 | Bae Systems Plc | Apparatus and method for optical imaging |
| CN105407343B (en) * | 2015-12-15 | 2017-08-01 | 瑞声声学科技(苏州)有限公司 | Pick-up lens and its depth of field calibration method |
| CN105549184A (en) * | 2016-01-07 | 2016-05-04 | 珠海市运泰利自动化设备有限公司 | Micro imaging positioning apparatus |
| CN109819235A (en) * | 2018-12-18 | 2019-05-28 | 同济大学 | A kind of axial distributed awareness integrated imaging method having following function |
| CN112731665B (en) * | 2020-12-31 | 2022-11-01 | 中国人民解放军32181部队 | Self-adaptive binocular stereoscopic vision low-light night vision head-mounted system |
| CN112987151A (en) * | 2021-04-21 | 2021-06-18 | 广州立景创新科技有限公司 | Composite prism module, image acquisition module and assembly method of composite prism module |
| CN112987149B (en) * | 2021-04-21 | 2023-01-20 | 广州立景创新科技有限公司 | Composite prism module and image acquisition module |
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| JP2003107601A (en) * | 2001-10-01 | 2003-04-09 | Canon Inc | Device and method for photographing three-dimensional image |
| CN101487970B (en) * | 2009-03-03 | 2011-01-12 | 无锡易斯科电子技术有限公司 | Mirror-image stereo camera apparatus and method |
| CN101794068A (en) * | 2010-02-04 | 2010-08-04 | 朱仕康 | Stereo video shooting device |
| CN101840146A (en) * | 2010-04-20 | 2010-09-22 | 夏佳梁 | Method and device for shooting stereo images by automatically correcting parallax error |
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| US11846791B2 (en) * | 2021-04-21 | 2023-12-19 | Guangzhou Luxvisions Innovation Technology Limited | Compound prism module and image acquisition module |
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