CN103149697B - Stereoscopic image reconstruction system - Google Patents
Stereoscopic image reconstruction system Download PDFInfo
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- CN103149697B CN103149697B CN201310087660.3A CN201310087660A CN103149697B CN 103149697 B CN103149697 B CN 103149697B CN 201310087660 A CN201310087660 A CN 201310087660A CN 103149697 B CN103149697 B CN 103149697B
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Abstract
The invention provides a cylindrical lens stereoscopic image vision aid screen and a stereoscopic image reconstruction system. The cylindrical lens stereoscopic image vision aid screen is composed of a left cylindrical lens and a right cylindrical lens which are designed side by side and cling to each other, the stereoscopic image reconstruction system comprises the cylindrical lens stereoscopic image vision aid screen and a display screen, the cylindrical lens stereoscopic image vision aid screen is arranged at a middle position between the display screen and the eyes of a viewer, moreover, the distance between the cylindrical lens stereoscopic image vision aid screen and the display screen is less than or equal to the focal distance between the two cylindrical lenses, the left and the right stereoscopic parallax images displayed on the display screen are formed into a left-eye image area and a right-eye image area which are side by side, and the optical centers of the left cylindrical lens and the right cylindrical lens are respectively opposite to the central axes or the outsides of the central axes of the left-eye image area and the right-eye image area. The invention not only keeps the advantage of the conventional left-right 3D (three-dimensional) vision aid, i.e. high color fidelity, but also keeps the angular magnification at 1 in the vertical direction, while the angular magnification in the horizontal direction reaches about 2, and thereby the width-to-length ratio of reconstructed 3D images is harmonious.
Description
[technical field]
The invention belongs to stereopsis display technique field, particularly relate to a kind of stereopsis playback system.
[background technology]
Along with 3D film, video film source more and more abundanter, view and admire 3D image and be about to become a kind of popular recreation.Watching at 3D movie theatre with before 3D televisor, be the main path that current 3D views and admires, but the cost of these two kinds of modes is all higher, and can not conveniently wanting to see and just see with individual.Red blue glasses are utilized at common computer screen 3D program, solve the problem of low cost and dirigibility, but its color fidelity to be poor, and beholder's colour vision can be caused temporary not normal.Recently, society occurs several 3D being applicable to left-right format display helps view apparatus, its mechanism is all the left eye parallax picture (hereinafter referred to as " left figure " or " left picture ") allowing beholder's left eye observe is moved to display screen centre by turning right, right eye sees to right eye disparity picture (hereinafter referred to as " right figure " or " right picture ") moved to the centre of screen by turning left, so In the view of beholder, left and right two pictures overlap, and just define a width space image in the brain of beholder.The 3D of left-right format helps view apparatus to have the high advantage of color fidelity.Its principle can be divided into two classes, and one is move image by plane mirror group, and two is move image by the spherical mirror of bias.These two kinds of principles have a common defect, be exactly apparent angular magnification are 1, and the size of the image that beholder sees and Aspect Ratio are the same with screen display.Because display screen takes left-right format to show, the space image that beholder finally feels only has at most 1/2nd of display screen width on width.The height of display is if all over the screen, and so, the image that beholder sees will become elongated (highly constant, width compression half); If the height of display also compresses half, so the height of image, wide ratio become to have coordinated, but the height of the image seen and width all reduce half, and 1/4th when area then only has all over the screen, viewing effect is had a greatly reduced quality.
[summary of the invention]
In order to solve the above-mentioned technical matters existed in prior art, the invention provides and a kind ofly can retain existing left-right format 3D and help the advantage that view apparatus color fidelity is high, angular magnification can be kept again to be in the vertical direction 1, and angular magnification reaches 2 in the horizontal direction, thus realize the eurythmy of the 3D rendering of synthesis, the stereopsis playback system that cost of manufacture is low.
The present invention solves the technical scheme that prior art problem adopts:
A kind of cylindrical mirror stereopsis sight screen, primarily of left cylindrical lens and right cylindrical lens composition, described left cylindrical lens and right cylindrical lens design side by side and are mutually adjacent to and connect.
Further, described left cylindrical lens and right cylindrical lens are cylinder Fresnel lens.
Further, the focal length of described left cylindrical lens and right cylindrical lens is less than or equal to 50cm.
A kind of stereopsis playback system, include cylindrical mirror stereopsis sight screen of the present invention, display screen, described cylindrical mirror stereopsis sight screen is located at the centre position between described display screen and beholder's eyes, and the distance between described cylindrical mirror stereopsis sight screen and described display screen is less than or equal to the focal length of described left cylindrical lens and right cylindrical lens, the image of described display screen display is the stereoscopic parallax image of left-right format, form left eye image district side by side and right eye as district, the photocentre of described left cylindrical lens and right cylindrical lens faces described left eye image district and the right eye axis as district respectively, or facing to described left eye image district and right eye as outside the axis in district.
Further, distance d=cf/u between described left cylindrical lens and the photocentre of right cylindrical lens, wherein c be described left eye image district and right eye as district axis between distance, f is the focal length of described left cylindrical lens and right cylindrical lens, and u is described left cylindrical lens and the distance between right cylindrical lens and described display screen.
Further, height l >=the hu/D+4mm of described left cylindrical lens and right cylindrical lens, wherein h is described left eye image district and the right eye height as district, u is described left cylindrical lens and the distance between right cylindrical lens and described display screen, D is the distance between beholder's eyes and described display screen, and 4mm is the diameter of beholder's eye pupil.
Further, width b >=(the c+65)/2mm of described left cylindrical lens and right cylindrical lens, wherein c be left eye image district and right eye as the centre distance between district, the unit of 65 is mm, represents the average interpupillary distance of human eye.
Beneficial effect of the present invention is as follows:
The present invention passes through technique scheme, beholder watches the 3D anaglyph of left-right format, just can form 3D stereo-picture in the brain, existing left-right format 3D can be retained and help the advantage that view apparatus color fidelity is high, angular magnification can be kept again to be in the vertical direction 1, and angular magnification reaches about 2 in the horizontal direction, thus the eurythmy of the 3D rendering allowing beholder see; In addition, left cylindrical lens and right cylindrical lens adopt cylinder Fresnel lens, both reduce cost, and turn improve image quality.
[accompanying drawing explanation]
Fig. 1 is the structural representation of a kind of stereopsis playback system embodiment of the present invention.
[embodiment]
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
As shown in fig. 1:
A kind of stereopsis playback system described in the embodiment of the present invention, includes cylindrical mirror stereopsis sight screen 1 and display screen 2, and described cylindrical mirror stereopsis sight screen 1 is located at the centre position between display screen 2 and beholder's eyes 3; Wherein, described cylindrical mirror stereopsis sight screen 1 forms primarily of left cylindrical lens 11 and right cylindrical lens 12, described left cylindrical lens 11 and right cylindrical lens 12 design side by side and are mutually adjacent to and connect, and all can be cylinder Fresnel lens, its focal length is all less than or equal to 50cm, and the distance between described cylindrical mirror stereopsis sight screen 1 and display screen 2 is less than or equal to the focal length of left cylindrical lens 11 and right cylindrical lens 12; 3D rendering is presented on described display screen 2 with left-right format, form left eye image district 21 side by side and right eye as district 22, the photocentre of described left cylindrical lens 11 and right cylindrical lens 12 faces left eye image district 21 and the right eye axis as district 22 respectively, or outside left eye image district 21 and the axis of right eye as district 22, namely the photocentre of left cylindrical lens 11 is just to the center in left eye image district 21 or in side to the left, the axis in left eye image district 21, the photocentre of right cylindrical lens 12 just to right eye as the center in district 22 or in the axis to the right side of right eye as district.
In addition, distance d=cf/u between described left cylindrical lens 11 and the photocentre of right cylindrical lens 12, wherein c be left eye image district 21 and right eye as district 22 axis between distance, f is the focal length of left cylindrical lens 11 and right cylindrical lens 12, and u is left cylindrical lens 11 and the distance between right cylindrical lens 12 and display screen 2.
Height l >=the hu/D+4mm of described left cylindrical lens 11 and right cylindrical lens 12, wherein h is the height of left viewing area 21 and right viewing area 22, u is left cylindrical lens 11 and the distance between right cylindrical lens 12 and display screen 2, D is the distance between beholder's eyes 3 and display screen 2, and 4mm is the diameter of beholder's eye pupil.
Width b >=(the c+65)/2mm of described left cylindrical lens 11 and right cylindrical lens 12, wherein c is left eye image 21 and right eye as the centre distance between 22, and the unit of 65 is mm, represents the average interpupillary distance of human eye.
The principle of work of stereopsis playback system of the present invention is: the image angular magnification Г in the horizontal direction on the display screen 2 that beholder is seen by cylindrical mirror stereopsis sight screen 1 is:
Wherein, D is the distance between beholder's eyes 3 and display screen 2, and u is left cylindrical lens 11 and the distance between right cylindrical lens 12 and display screen 2, and f is the focal length of left cylindrical lens 11 and right cylindrical lens 12; Work as D=2u, and during u ≈ f, angular magnification Г ≈ 2, left eye image district 21 then on display screen 2 and right eye as district 22 when display all over the screen, In the view of beholder, left eye image district 21 and right eye have been exaggerated nearly one times as the width (horizontal direction) in district 22, and the size of height (vertical direction) is not amplified, and the 3D figure finally formed in human brain has just recovered normal ratio.
Such as: display screen 2 is the display screen of ipad, its width is 200mm, be highly 140mm, the viewing distance (the distance D namely between eyes 3 and display screen 2) of people's custom is about 530mm, accordingly, the focal distance f of left cylindrical lens 11 and right cylindrical lens 12 is 280mm, left cylindrical lens 11 and the distance u between right cylindrical lens 12 and display screen 2 are 270cm, distance d then between left cylindrical lens 11 and the photocentre of right cylindrical lens 12 is 104mm, the height l of left cylindrical lens 11 and right cylindrical lens 12 is 75.3mm, and width b is 82.5mm.Horizontal direction magnification is 1.9.
Like this, the 3D anaglyph of left-right format is watched by cylindrical mirror stereopsis sight screen of the present invention and stereopsis playback system, beholder just can form 3D stereo-picture in the brain, existing left-right format 3D can be retained and help the advantage that view apparatus color fidelity is high, angular magnification can be kept again to be in the vertical direction 1, and angular magnification reaches 1.9 in the horizontal direction, thus realize the eurythmy of the 3D rendering reappeared; In addition, left cylindrical lens 11 and right cylindrical lens 12 adopt cylinder Fresnel lens, both reduce cost, and turn improve image quality.
Above content is in conjunction with concrete optimal technical scheme further description made for the present invention, can not assert that specific embodiment of the invention is confined to these explanations.For the professional and technical personnel of the technical field of the invention, without departing from the inventive concept of the premise, some simple deduction or replace can also be made, all should be considered as belonging to protection scope of the present invention.
Claims (4)
1. a stereopsis playback system, is characterized in that: comprise cylindrical mirror stereopsis sight screen (1), display screen (2), wherein, described cylindrical mirror stereopsis sight screen (1) is primarily of left cylindrical lens (11) and right cylindrical lens (12) composition, and described left cylindrical lens (11) and right cylindrical lens (12) design side by side and are mutually adjacent to and connect, described cylindrical mirror stereopsis sight screen (1) is located at the centre position between described display screen (2) and beholder's eyes (3), and the distance between described cylindrical mirror stereopsis sight screen (1) and described display screen (2) equals the focal length of described left cylindrical lens (11) and right cylindrical lens (12), the image of the upper display of described display screen (2) is the stereoscopic parallax image of left-right format, form left eye image district (21) side by side and right eye as district (22), the photocentre of described left cylindrical lens (11) and right cylindrical lens (12) faces described left eye image district (21) and the right eye axis as district (22) respectively, or outside described left eye image district (21) and the axis of right eye as district (22),
Height l >=the hu/D+4mm of described left cylindrical lens (11) and right cylindrical lens (12), wherein h is described left eye image district (21) and the right eye height as district (22), u is described left cylindrical lens (11) and the distance between right cylindrical lens (12) and described display screen (2), D is the distance between beholder's eyes (3) and described display screen (2), and 4mm is the diameter of beholder's eye pupil;
Width b >=(the c+65)/2mm of described left cylindrical lens (11) and right cylindrical lens (12), wherein c is that left eye image district (21) and right eye are as the centre distance between district (22), the unit of 65 is mm, represents the average interpupillary distance of human eye.
2. stereopsis playback system according to claim 1, it is characterized in that: the distance d=cf/u between the photocentre of described left cylindrical lens (11) and right cylindrical lens (12), wherein c be described left eye image district (21) and right eye as district (22) axis between distance, f is the focal length of described left cylindrical lens (11) and right cylindrical lens (12), and u is described left cylindrical lens (11) and the distance between right cylindrical lens (12) and described display screen (2).
3. stereopsis playback system according to claim 2, is characterized in that: described left cylindrical lens (11) and right cylindrical lens (12) are cylinder Fresnel lens.
4. stereopsis playback system according to claim 3, is characterized in that: the focal length of described left cylindrical lens (11) and right cylindrical lens (12) is less than or equal to 50cm.
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CN110392861A (en) * | 2016-02-22 | 2019-10-29 | 宋杰 | Optical stereo for naked eye viewing shows screen |
CN107703627A (en) * | 2016-08-08 | 2018-02-16 | 石庆俊 | The changeable VR Helmet Mounted Displays of monocular binocular of visual angle broadening |
CN109239934B (en) * | 2018-11-09 | 2021-12-24 | 联想(北京)有限公司 | Display device |
CN109922326B (en) * | 2019-03-29 | 2020-11-06 | 深圳市新致维科技有限公司 | Method, device, medium and equipment for determining resolution of naked eye 3D video image |
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JPH07281127A (en) * | 1994-04-12 | 1995-10-27 | Hiroji Tanaka | Stereoscopic photograph viewing sheet |
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WO2010095486A1 (en) * | 2009-02-19 | 2010-08-26 | シャープ株式会社 | Three-dimensional display device |
JP2011154145A (en) * | 2010-01-27 | 2011-08-11 | Panasonic Corp | Binocular lens and electronic equipment |
CN202583604U (en) * | 2012-04-09 | 2012-12-05 | 珠海真幻科技有限公司 | Three-dimensional visual aid device |
CN203164525U (en) * | 2013-03-19 | 2013-08-28 | 珠海真幻科技有限公司 | Cylindrical-lens 3D (Three-Dimensional) image watching assistant screen and 3D image reproducing system |
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2013
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Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
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US4772094A (en) * | 1985-02-05 | 1988-09-20 | Bright And Morning Star | Optical stereoscopic system and prism window |
CN2044735U (en) * | 1987-05-22 | 1989-09-20 | 安东尼·塔克·索罗 | Improved stereoscopic image observer |
JPH07281127A (en) * | 1994-04-12 | 1995-10-27 | Hiroji Tanaka | Stereoscopic photograph viewing sheet |
CN2423590Y (en) * | 2000-05-30 | 2001-03-14 | 章谦 | Lens for one person watching abreast steroscopic image |
WO2010095486A1 (en) * | 2009-02-19 | 2010-08-26 | シャープ株式会社 | Three-dimensional display device |
JP2011154145A (en) * | 2010-01-27 | 2011-08-11 | Panasonic Corp | Binocular lens and electronic equipment |
CN202583604U (en) * | 2012-04-09 | 2012-12-05 | 珠海真幻科技有限公司 | Three-dimensional visual aid device |
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