CN101937168A - Optical three-dimensional imaging device and three-dimensional camera shooting method - Google Patents
Optical three-dimensional imaging device and three-dimensional camera shooting method Download PDFInfo
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- CN101937168A CN101937168A CN2009101084446A CN200910108444A CN101937168A CN 101937168 A CN101937168 A CN 101937168A CN 2009101084446 A CN2009101084446 A CN 2009101084446A CN 200910108444 A CN200910108444 A CN 200910108444A CN 101937168 A CN101937168 A CN 101937168A
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Abstract
The invention discloses an optical three-dimensional imaging device, belonging to the field of three-dimensional image shooting. The optical three-dimensional imaging device comprises a first optical imaging lens group, a second optical imaging lens group, a first dispersion prism and a second dispersion prism, wherein the first optical imaging lens group and the second optical imaging lens group are used for simulating human eyes to receive external light rays and compressing the entered image twice in the horizontal direction relative to the vertical direction; the first dispersion prism and the second dispersion prism are respectively used for refracting and reflecting the incoming light rays corresponding to the first optical imaging lens group and the second optical imaging lens group, and the refracted and reflected light rays form two parallel images on an imaging plane. The invention also discloses a three-dimensional camera shooting method. The optical three-dimensional imaging device and the three-dimensional camera shooting method can be used for acquiring three-dimensional images with good imaging effect at low cost.
Description
Technical field
The present invention relates to shooting stereo images and processing technology field, more particularly, relate to a kind of optical stereo imaging device and stereo camera shooting method that is used for shooting stereo images.
Background technology
Stereo camera shooting technology and stereo camera shooting product can be applied on the products such as mobile phone, video camera, camera, MP4, spectacle display device, simulating reality equipment and remote-controlled robot, can be in fields such as civilian, military, scientific research, recreation performance enormous function.
Human eye can produce stereo perception to the finding object according to the vision difference of right and left eyes, so general stereo camera apparatus all is to utilize two pick-up lenss to come that object is carried out imaging then image to be handled.But the problem of bringing like this is very outstanding: be mainly reflected in 1, twin-lens focus on and amplification performance on inconsistent, left and right sides image definition and size all may be inequality, cause image imaging fuzzy at last.2, twin-lens can't guarantee that image is consistent in contraposition installing, and causes the image can't assurance level and inclination consistance on the visual angle, and then deviation appears in two width of cloth images when solid overlaps, and image can produce fuzzy ghost image.3, the consistance difference of double image sensor causes on characteristics such as brightness of image, contrast, colourity, GTG inconsistently, and the vision notable difference appears in left and right sides image, and image is three-dimensional can to produce phenomenons such as vision is dizzy, image blurring when overlapping.4, double image sensor is when imaging, be difficult to guarantee that two pictures are that pixel is synchronous, gap on the right and left eyes image time of occurrence like this when synthetic stereo image or photo, two nonsynchronous images occur and causes the stereoeffect variation even lose stereoeffect and become ghost image.Therefore, need a kind of optical stereo imaging device and stereo camera shooting method, guarantee consistance on the light path with the precision optics imaging arrangement, accept the two-way image, guaranteed the in full accord and good net synchronization capability of electrical property of image imaging with same lens group and single image sensor.
Summary of the invention
The technical problem to be solved in the present invention is, at the inconsistency that adopts the twin-lens parameter that double image sensor produced in the existing stereoscopic shooting technology, and the net synchronization capability difference causes in brightness of image, contrast, colourity, GTG, synchronously on inconsistent deficiency and defective, a kind of optical stereo imaging device and stereo camera shooting method and stereo camera shooting method are provided.
The technical solution adopted for the present invention to solve the technical problems is: construct a kind of optical stereo imaging device and stereo camera shooting method, described optical stereo imaging device comprises:
The first optical imaging lens group and the second optical imaging lens group are used to simulate human eye and receive extraneous light and the relative in the horizontal direction vertical direction of image that enters is compressed one times;
First Amici prism and second Amici prism are respectively applied for and will reflect reflection from the light corresponding to the first optical imaging lens group and the second optical imaging lens group, and described light through the superrefraction reflection forms two width of cloth images arranged side by side on imaging plane.
Particularly, the lateral separation scope between the described first optical imaging lens group and the second optical imaging lens group is 40 to 100 millimeters.
Particularly, relative first prism with the horizontal direction field angle of the second optical imaging lens group of the described first optical imaging lens group becomes the twice relation with second prism, and vertical direction is constant.
Particularly, described optical stereo imaging device also comprises single lens group imaging system and single image sensor.
Particularly, described single lens group imaging system adopts the lens assembly of complete video camera or camera to realize.
Particularly, described single image sensor is CCD or cmos image sensor.
In order to realize goal of the invention better, a kind of stereo camera shooting method is provided, specifically may further comprise the steps:
S1. two optical imaging lens groups simulations of horizontal installation arranged side by side human eyes receive extraneous lights and the relative in the horizontal direction vertical direction of image that enters are compressed one times;
S2. by two Amici prisms the extraneous light of two optical imaging lens group of received is reflected reflection;
S3. adopt single image sensor scioptics form as system the light that receives described two Amici prisms refraction and reflection on its imaging plane and form arranged side by side about two width of cloth images.
In method of the present invention, the lateral separation scope among the described step S1 between two optical imaging lens groups is 40 to 100 millimeters.
In method of the present invention, relative first prism of the horizontal direction field angle of described two optical imaging lens groups becomes the twice relation with second prism, constant in vertical direction.
In method of the present invention, described single image sensor is CCD or cmos image sensor.
In method of the present invention, described single lens group imaging system adopts the lens assembly of complete video camera or camera to realize.
Implement a kind of optical stereo imaging device provided by the invention and stereo camera shooting method, by two the optical imaging lens groups different with conventional lenses with one times of the vertical direction compression and use single image sensor relatively in the horizontal direction of the image that enters, can obtain left and right sides picture does not have the complete image picture of time-delay, compared to existing technologies, do not have time-delay (being good net synchronization capability) about the image that the present invention represented has, can keep the image/video total resolution of original design, guaranteed the optics, electrical property of image imaging, synchronous etc. consistance.
Description of drawings
Below in conjunction with drawings and Examples, the invention will be further described, in the accompanying drawing:
Fig. 1 is a kind of stereo photographic device structural drawing that uses optical stereo imaging device of the present invention according to a preferred embodiment of the present invention,
Fig. 2 is the process flow diagram according to a kind of stereo camera shooting method of a preferred embodiment of the present invention,
Fig. 3 is according to the imaging synoptic diagram on the imaging plane of the single imageing sensor in a kind of optical stereo imaging device of a preferred embodiment of the present invention.
Embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer,, the present invention is further elaborated below in conjunction with drawings and Examples.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 present invention is further elaborated with specific embodiment with reference to the accompanying drawings below.
As shown in Figure 1 be structural drawing according to a kind of stereo photographic device of a preferred embodiment of the present invention, wherein, stereo photographic device 100 comprises optical stereo imaging device 110 and imaging lens component system 120 (comprising single lens group 121 and single imageing sensor 122), and described optical stereo imaging device 110 constitutes apparatus of the present invention; Described imaging lens component system 120 can be common camera system or camera apparatus, also can be camera system;
Described optical stereo image-forming assembly 110 comprises the first optical imaging lens group (111,112), the second optical imaging lens group (114,115), first Amici prism 113, second Amici prism 116;
Described first optical imaging lens group (111,112) and the second optical imaging lens group (114,115) are used to simulate human eye and receive extraneous light, lens in described two lens combination are different with the conventional lenses lens, after image process lens combination, the original relatively aspect ratio of image is compressed one times in the horizontal direction, vertical direction is constant, be that image keeps original relative height, and width compress one times relatively; Lateral separation scope between described first optical imaging lens group (111,112) and the second optical imaging lens group (114,115) is 40 to 100 millimeters, consistent with the interpupillary distance of human eye, the field angle of described first optical imaging lens group (111,112) and the second optical imaging lens group (114,115) becomes the twice relation, is installing the accuracy that guarantees structure; Described first Amici prism 113 and second Amici prism 116 are used for and will reflect from the light corresponding to first optical imaging lens group (111,112) and the second optical imaging lens group (114,115) and reflect; Be transferred to the joint portion of lens group imaging system 120 respectively by first Amici prism 113 and second Amici prism 116 through the image after the compression of the first optical imaging lens group (111,112) and the second optical imaging lens group (114,115), again by single lens group 121 about forming on the single CCD/CMOS imageing sensor 122 side by side, two width of cloth images that compressed of horizontal 2:1 in the horizontal direction.This image is right and left eyes, and through the SIDE BY SIDE image of two width of cloth images of horizontal 2:1 compression.Imaging in ordinary camera is a square as original object, will be that a ratio of width to height is an image arranged side by side about 1: 2 through what obtain behind this device.So just can just can obtain the stereo-picture of the SIDE BY SIDE of horizontal 2:1 compression, and keep the image/video total resolution of original lens assembly design at the optical lens of not changing original digital camera/video camera and imageing sensor.So also handle according to original circuit/program fully in subsequent compression, processing.
As shown in Figure 2 be according to the process flow diagram of a kind of stereo camera shooting method of a preferred embodiment of the present invention, said method comprising the steps of:
Among the step S200, two optical imaging lens groups are installed on the position of 40 to 100 millimeters of lateral separations, the simulation human eye receives light from outside;
Among the step S202, lens in described two optical imaging lens groups are different with the conventional lenses lens, and after image process lens combination, the original relatively aspect ratio of image is compressed one times in the horizontal direction, be that image keeps original relative height, and picture traverse compress one times relatively;
Among the step S204, respectively the extraneous light of two optical imaging lens group of received is reflected and reflect by two Amici prisms;
Among the step S206, adopt single image sensor scioptics form as system the light that receives described two Amici prisms refraction and reflection on its imaging plane and form arranged side by side about two width of cloth images, promptly by the lens group imaging system about forming on the single CCD/CMOS imageing sensor side by side, two width of cloth images that compressed of horizontal 2:1 in the horizontal direction.This image is right and left eyes, and through the SIDE BY SIDE image of two width of cloth images of horizontal 2:1 compression.Imaging in ordinary camera is a square as original object, will be that a ratio of width to height is an image arranged side by side about 1: 2 through what obtain behind this device.So just can just can obtain the stereo-picture of the SIDE BY SIDE of horizontal 2:1 compression, and keep the image/video total resolution of original lens assembly design at the optical lens of not changing original digital camera/video camera and imageing sensor.So also handle according to original circuit/program fully in subsequent compression, processing.
As shown in Figure 3 be according to the imaging synoptic diagram on the imaging plane of the single imageing sensor in a kind of stereo photographic device of a preferred embodiment of the present invention, because utilize the principle of optics left and right sides image has been carried out the level compression, any change does not take place in total pixel of the image of the solid that obtains on original imageing sensor, resolution, length breadth ratio, so this device needn't change any circuit and the software design of original 2D camera/; Output and the image that shows also are the stereo-picture images of SIDE BY SIDE.
In sum, the critical component of device of the present invention is the optical imaging lens group, with traditional imaging lens group difference, it be not with image fully according to original ratio focus on, imaging, its topmost function is that image is compressed one times in the horizontal direction relatively, after seeing through the optical imaging lens group, light enters into the optical system of camera through the refraction and the reflection of Amici prism.The light of left form enters into left side one side of something of the form of camera through prismatic refraction, the light of right form enters into right one side of something of the form of camera.Two images arranged side by side about the imaging surface of camera just can obtain like this.Design by suitable optical imaging lens group and left and right sides form size, make that the image that finally obtains is the ratio of width to height 1: 2 on imageing sensor, promptly compressed one times image in the horizontal direction relatively, and left and right sides form still keeps original visual angle and the ratio of width to height.The horizontal view angle of supposing the assembly of traditional optical camera lens is 50 degree, the wide high proportion of 2D image is 4: 3, pass through device of the present invention so after, obtain will be about the image of two 2:3 arranged side by side, but the wide high proportion of the field angle of left and right sides image remained on 4: 3, and the horizontal view angle still is 50 degree.On the camera structure of original 2D, keep previous image taking mode and total resolution fully like this.If original camera design contains zoom, focusing function, these can not have influence on the effect of this device.Because utilize the principle of optics left and right sides image has been carried out the level compression, any change does not take place in total pixel of the image of the solid that obtains on original imageing sensor, resolution, synthetic image length breadth ratio, so this device needn't change any circuit and the software design of original 2D camera/.Output and the image that shows also are the stereo-pictures of SIDE BY SIDE.In the solid reduction, if adopt the technology of DOT BY DOT, show that with two viewpoint optical grating three-dimensional display screens the ratio of width to height of image will be recovered 4: 3, the ratio of width to height of personage's scenery will be reduced, and have no the pixel loss.When utilizing other display techniques, need carry out the pixels across interpolation to the right and left eyes image.The present invention is simple, when three-dimensional encoding and decoding technique is not popularized, utilize existing technology can finish three-dimensional imaging, but shortcoming is the horizontal resolution of having sacrificed right and left eyes.
Device of the present invention must be as shown in Figure 1, consistently with imaging lens component system 120 levels link or install, the middle separated time of device must be arranged on the central vertical axis of single imageing sensor 122 imaging surfaces of described imaging lens component system 120, and the center of assurance device overlaps substantially with the center of imaging surface, to avoid left and right sides image asymmetric.
The content of more than introducing and describing only be the preferred embodiments of the present invention, not in order to restriction the present invention, all any modifications of being done within the spirit and principles in the present invention, is equal to replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. an optical stereo imaging device is characterized in that, comprising:
First optical imaging lens group (111,112) and the second optical imaging lens group (114,115) are used to simulate human eye and receive extraneous light and the relative in the horizontal direction vertical direction of image that enters is compressed one times;
First Amici prism (113) and second Amici prism (116), be respectively applied for and will reflect reflection from the light corresponding to first optical imaging lens group (111,112) and the second optical imaging lens group (114,115), described light through the superrefraction reflection forms two width of cloth images arranged side by side on imaging plane.
2. optical stereo imaging device according to claim 1 is characterized in that: the lateral separation scope between described first optical imaging lens group (111,112) and the second optical imaging lens group (114,115) is 40 to 100 millimeters.
3. optical stereo imaging device according to claim 1 is characterized in that: relative first prism of horizontal direction field angle (113) of described first optical imaging lens group (111,112) and the second optical imaging lens group (114,115) and second prism (116) are the twice relation.
4. optical stereo imaging device according to claim 1 is characterized in that: also comprise single lens group imaging system (121) and single image sensor (122).
5. optical stereo imaging device according to claim 4 is characterized in that: described single lens group imaging system (121) adopts the lens group of complete video camera or camera to realize.
6. optical stereo imaging device according to claim 4 is characterized in that: described single image sensor (122) is CCD or cmos image sensor.
7. a stereo camera shooting method is characterized in that, may further comprise the steps:
S1. two optical imaging lens groups simulations of horizontal installation arranged side by side human eyes receive extraneous lights and the relative in the horizontal direction vertical direction of image that enters are compressed one times;
S2. by two Amici prisms the extraneous light of two optical imaging lens group of received is reflected reflection;
S3. adopt single image sensor scioptics form as system the light that receives described two Amici prisms refraction and reflection on its imaging plane and form arranged side by side about two width of cloth images.
8. stereo camera shooting method according to claim 7 is characterized in that: the lateral separation scope among the described step S1 between two optical imaging lens groups is 40 to 100 millimeters.
9. stereo camera shooting method according to claim 7 is characterized in that: relative two prisms of the horizontal direction field angle of described two optical imaging lens groups are the twice relation, and are constant in vertical direction.
10. stereo camera shooting method according to claim 7 is characterized in that, described single image sensor is CCD or cmos image sensor.
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| CN2009101084446A CN101937168B (en) | 2009-07-02 | 2009-07-02 | Optical three-dimensional imaging device and three-dimensional camera shooting method |
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| CN102256151A (en) * | 2011-07-14 | 2011-11-23 | 深圳市掌网立体时代视讯技术有限公司 | Double-optical path single-sensor synthesis module and three-dimensional imaging device |
| CN102973238A (en) * | 2012-12-16 | 2013-03-20 | 天津大学 | 3D (three dimensional) lens for endoscope device |
| CN103376637A (en) * | 2012-04-27 | 2013-10-30 | 华移联科（沈阳）技术有限公司 | 3D camera system |
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| US5835133A (en) * | 1996-01-23 | 1998-11-10 | Silicon Graphics, Inc. | Optical system for single camera stereo video |
| CN1200572C (en) * | 2000-12-04 | 2005-05-04 | 北京双攀科技发展有限责任公司 | Method for implementing 3D television on basis of existing system |
| JP4665166B2 (en) * | 2005-06-29 | 2011-04-06 | ソニー株式会社 | Stereo image processing apparatus, stereo image processing method, and stereo image processing program |
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| CN103379215A (en) * | 2012-04-27 | 2013-10-30 | 华移联科（沈阳）技术有限公司 | 3D camera cell phone |
| CN104797929A (en) * | 2012-11-19 | 2015-07-22 | Khs科波普拉斯特有限责任公司 | Inspection system for container openings |
| CN102973238A (en) * | 2012-12-16 | 2013-03-20 | 天津大学 | 3D (three dimensional) lens for endoscope device |
| WO2017076229A1 (en) * | 2015-11-05 | 2017-05-11 | 丰唐物联技术（深圳）有限公司 | Stereoscopic vision camera |
| 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 |
| CN107390348B (en) * | 2016-05-17 | 2023-12-29 | 杭州海康机器人股份有限公司 | Optical imaging device and camera |
| CN107390348A (en) * | 2016-05-17 | 2017-11-24 | 杭州海康机器人技术有限公司 | Optical imaging device and video camera |
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| JP7191893B2 (en) | 2019-09-19 | 2022-12-19 | キヤノン株式会社 | Lens device and imaging device |
| US11796906B2 (en) | 2019-09-19 | 2023-10-24 | Canon Kabushiki Kaisha | Lens apparatus and image pickup apparatus |
| JP2021051282A (en) * | 2019-09-19 | 2021-04-01 | キヤノン株式会社 | Lens device and imaging apparatus |
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