WO2002073982A1 - Procede de synthese d'images virtuelles en images stereoscopiques et television stereoscopique de type lunettes - Google Patents

Procede de synthese d'images virtuelles en images stereoscopiques et television stereoscopique de type lunettes Download PDF

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Publication number
WO2002073982A1
WO2002073982A1 PCT/CN2002/000019 CN0200019W WO02073982A1 WO 2002073982 A1 WO2002073982 A1 WO 2002073982A1 CN 0200019 W CN0200019 W CN 0200019W WO 02073982 A1 WO02073982 A1 WO 02073982A1
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WIPO (PCT)
Prior art keywords
image
video signals
stereo
television
images
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Ceased
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PCT/CN2002/000019
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English (en)
Chinese (zh)
Inventor
Shijun Ren
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Individual
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Individual
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Publication of WO2002073982A1 publication Critical patent/WO2002073982A1/fr
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
    • H04N13/20—Image signal generators
    • H04N13/204—Image signal generators using stereoscopic image cameras
    • H04N13/239—Image signal generators using stereoscopic image cameras using two two-dimensional [2D] image sensors having a relative position equal to or related to the interocular distance
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
    • H04N13/30—Image reproducers
    • H04N13/332—Displays for viewing with the aid of special glasses or head-mounted displays [HMD]
    • H04N13/344—Displays for viewing with the aid of special glasses or head-mounted displays [HMD] with head-mounted left-right displays
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B30/00—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images
    • G02B30/20—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes
    • G02B30/34—Stereoscopes providing a stereoscopic pair of separated images corresponding to parallactically displaced views of the same object, e.g. three-dimensional [3D] slide viewers
    • G02B30/35—Stereoscopes providing a stereoscopic pair of separated images corresponding to parallactically displaced views of the same object, e.g. three-dimensional [3D] slide viewers using reflective optical elements in the optical path between the images and the observer

Definitions

  • the invention provides a method and a device for synthesizing a stereo image, and in particular, a method for synthesizing a spatial stereo image with a virtual image applicable to a stereo television system, and a glasses-type stereo television using the method.
  • stereo television technologies including stereo television technology with glasses
  • stereo image of the television must be expressed from the same synthesized image screen.
  • a dual-lens camera was used to obtain two independent images with different viewing angles.
  • the two images were combined on a flat display screen. In this way, not only the synthesized image, but still It is flat and has ghosting. It cannot be viewed clearly with the naked eye.
  • a stereoscopic image you have to use some reduction methods to re-decompose them and provide them to the left and right eyes respectively.
  • Chinese patent CN1071789A discloses a "high-fidelity stereo television imaging technology". This existing technology eliminates the need to synthesize images shot by a camera lens on the same flat screen. In specific implementation technology, it uses two televisions. When viewing images, one eye directly looks at a television screen in front; the other eye refracts through a mirror, and when viewing another television screen, the mirror must be corresponding The refraction angle of the light is adjusted so that the refracted images are superimposed on the front television screen for direct viewing, and the images on the two television screens are combined in this way to become a stereo image.
  • the technical problem to be solved by the present invention is to provide a virtual image synthesis stereoscopic image method capable of overcoming the defects in the prior art and a glasses-type stereoscopic television using the method.
  • the virtual image synthesis stereo image method two independent plane images with mutually different viewing angle differences obtained by a dual-lens camera are synchronized to form a virtual image in the same space through an optical lens, and the two virtual images are combined into a spatial stereo image. People's eyes can directly view the synthesized spatial stereo images.
  • the glasses-type stereo television system adopting the above method provided by the present invention can view stereo three-dimensional images and two-dimensional images.
  • the present invention provides a virtual image synthesis method for spatial stereo images, where:
  • the two image display units form mutually synchronized viewing angle differences for the same scene; d.
  • the two image display units form a composite virtual image in space through optical lenses.
  • the left and right video signals may be transmitted by wire or may be transmitted by wireless.
  • the video synchronization system may be a recording or playback system, or may be a recording and playback system.
  • the virtual image synthesis spatial stereo image method is provided with two sets of left and right pulse triggers before the recording system and the playback system.
  • the two sets of pulse triggers receive and restore the video signal, and the temporal pulse generator is connected to the pulse trigger. Device.
  • the left and right video signals can be simulated by digital technology.
  • a glasses-type stereo television system adopting the above method is provided with a pair of optical lenses and a double screen on the glasses frame, and left and right movement cores are arranged behind the double screen, and the left and right movement cores are provided with circuit boards that provide video signals to the double screen.
  • the left and right video signals provided to the screen are different, synchronized video signals formed by two independent, two-lens filmed, mutually different angles of view on the same object that have similar human eyes.
  • the left and right video signals having a poor viewing angle can be formed by analog technology such as digitization.
  • the video signal may be connected to a changeover switch.
  • the changeover switch When the changeover switch is in a state, the left and right video signals have a difference in viewing angle, and are two different video signals, and the display displays a stereo image;
  • the switch When the switch is in another state, there is no viewing angle difference between the left and right video signal gates. It is the same video signal, and the display shows a flat image.
  • the changeover switch may be provided between the dual camera and the left and right video signal generating units, that is, the input end of the left and right video signals, and may also be provided at the output end of the left and right video signals.
  • the advantages and characteristics of the present invention are:
  • the method is used in a television system.
  • the camera is dual-lens, and the video recorder can output the signals from the dual-lens camera directly. It is almost ready for reception. It can be used intact on the equipment composed of the currently widely used flat-screen television technology; especially it can be almost intact. It is used immovably on the glasses-type dual image flat display.
  • This method tolerates the condition that people's eyes at the current stage are based on the scenes captured by a single-lens camera and present a flat image.
  • the flat display can also receive the signal from one of the cameras to obtain a flat image.
  • FIG. 1 is a schematic diagram of an object image being perceived by both eyes of people
  • FIG. 2 is a schematic diagram of the virtual image 8 formed by the image 3 in FIG. 1;
  • FIG. 3 is a schematic diagram of the image 6 in FIG. 1 forming a virtual image 9;
  • FIG. 4 is a schematic diagram of the three-dimensional image 10 synthesized by the virtual images 8 and 9 in space 7 in FIGS. 2 and 3;
  • FIG. 5 is a schematic diagram of the present invention, which shows that a video signal obtained with a dual lens camera is converted into a stereo image
  • FIG. 6 is a schematic diagram of the present invention, which shows that a video signal obtained by using a dual-lens camera is sorted, merged, and decomposed by a pulse trigger, and converted into a stereo image;
  • FIG. 7 is a schematic diagram of the present invention, showing a dual function of the glasses-type dual-screen display of the present invention
  • FIG. 8 is a schematic diagram illustrating the relationship between the depths of the scenes in the stereogram to relieve the fatigue caused by binocular viewing of the stereo image
  • FIG. 9 is a schematic diagram of a glasses-type stereoscopic television using the above method according to the present invention. Description of the preferred embodiment
  • image 1 is a cup with a handle set in a cylindrical shape, and a front view is shown on a plane 2.
  • Images 3 and 6 are the images of the cup perceived by the left and right eyes of the person or captured by the camera, respectively, and are implemented on the planes 4 and 5.
  • the difference in viewing angle between the left and right eyes or the left and right cameras of the cup images 3 and 6 is ⁇ angle.
  • image 3 can clearly show the handle part of the cup, and the handle part displayed there is different from that shown in the front view of image 1, which is obviously more.
  • Image 6 does not show the handle part on the cup; for image 6, the corresponding right eye or right head is the head part of the cup, which is just blocked by the cylindrical body of the cup itself.
  • Both images 3 and 6 are different from image 1 and are independent and different from each other. Because of this, people's visual nervous system, based on images 3 and 6, can directly obtain a spatial stereo image different from the cup plane front view 1.
  • images 3 and 6 are combined directly or after technical processing on a plane or screen, people's left and right eyes can see an indistinguishable, overlapping, and fuzzy flat image instead of a spatial stereo image.
  • FIG. 2 is a schematic diagram of the image 3 being a virtual image 8.
  • FIG. 2 is a schematic diagram of an image 6 being a virtual image 9.
  • the image 6 passes through an optical lens to form a virtual image 9 in the space 7.
  • This virtual image 9 does not actually exist in space 7, it is only the visual perception of human beings; however, the human eyes are still flat like image 6.
  • FIG. 4 is a schematic diagram of the virtual image 8 and 9 of FIG. 2 and FIG. 3 synthesizing the stereo image 10 in the space 7.
  • the virtual images 8 and 9 formed in space 7 are independent of each other and have a difference in viewing angle ⁇ . Therefore, the left and right eyes of the human have different perceptions of the virtual image 10 on the synthesized space 7.
  • the synthesized virtual image 10 is different to the left and right eyes of the human, and does not overlap.
  • the synthesized image is good. If the virtual images 10 are formed on the space part 7 of the same size, they give people the feeling of the visual nervous system, which is the stereo image 10 in the three-dimensional space 7.
  • the virtual image 10 synthesis principle in Fig. 4 omits such a process compared to the existing stereo imaging technology:
  • the images 3 and 6 are technically processed, they are superimposed on a screen or a plane. Then, the overlapping images are restored and decomposed into images 3 and 6 to form a stereoscopic image.
  • FIG. 5 is a schematic diagram of a video signal acquired by a camera lens of the present invention and converted into a stereo image.
  • a virtual image synthesis spatial stereo image method includes:
  • the left and right video signals are output to the two image display units through the video synchronization unit; c
  • the two image display units form a synchronized viewing angle difference with respect to the same scene; d. the two image display units are formed in space by optical lenses Composite virtual image.
  • the left and right video signals 1 1 and 12 obtained by the left and right cameras 14 and 15 in the Huan lens camera appear as images 3 and 6 through the video synchronization system 13, and the video signals 11 and 12 may be wired transmission or may be
  • the signals 3 and 6 are transmitted wirelessly through the optical lens, and the combined virtual image 10 formed by the human visual nervous system in the space 7 is presented as a three-dimensional image of the space.
  • the images 3 and 6 and corresponding optical lenses, or all or part of the carrier including the video signals 11 and 12, can form a glasses-type dual-image stereoscopic display 20 and 33.
  • the left and right video signals 11 and 12 in FIG. 5 can directly display the images 3 and 6 to form a stereoscopic image 10 when shooting directly without going through the hardware facilities of the video synchronization system 13.
  • the video synchronization system 1 3 through which the left and right video signals 11 and U pass may be a recording or playback system, or may be a recording and playback system.
  • the left and right video signals 11 and 12 having the viewing angle difference ⁇ are not necessarily obtained from the left and right cameras 14 and 15. They can also be simulated by digitization and other technologies. The left and right video signals 11 and 12 formed by digitization and other technology simulations can also generate a stereo image 10.
  • images 3 and 6 can be directly displayed without the need to undergo the existing polarized light, light deletion, color filtering, field sequential or vertical stripe method and other technical methods.
  • images 3 and 6 can also form a stereo image.
  • the left and right video signal gates 11 and 12 in FIG. 5 as long as they are not the same signal, and have mutually different perspectives on the same object and scene, and can form images on the screen, respectively, then the left and right video signals 11 and 12
  • the transmission of 12 is the same whether it is performed by electronic technology or light guide technology.
  • Figure 6 shows the video signal obtained with a dual-lens camera, which is sorted, merged and decomposed by a pulse trigger, and transformed into a stereo image. It is different from FIG. 5 in that the camera signals 14 and 15 are combined with the pulse triggers 37 and 38 before being input to the recording and playback device 13, and the trigger signals of the triggers 37 and 38 are controlled by the time pulse generator 39. In the working state, their signals are emitted and closed, which are opposite to each other.
  • the signals before the recording and playback device 13 inputs signals to the display 20, the signals pass through the triggers 35 and 34 and are restored to two signals corresponding to the camera signals 14 and 15 under the control of the time pulse generator 36.
  • the triggers 35 and 34 restore the signals after mixing by the pulse generators 37 and 38 to two independent signals corresponding to the camera signals 14 and 15, and these two signals can be displayed on the left and right screens 4 respectively. 5 and 5, the cup images 3 and 6 are displayed, and then the cup on the space 7 is formed Sub stereo image 10.
  • the time pulse generator 36 is regarded as a component of the recording and playback device 13 and is integrated with the recording and playback device 13.
  • Fig. 7 illustrates that the glasses-type dual-screen display formed by the method of the present invention can have dual functions of flat and stereo.
  • glasses-type dual-image televisions can present stereo images. Only when the two images of the glasses-type television are not the same image taken by a single lens, and the pair of images must be from the same object or the same scene, under the condition that the viewing angle difference ⁇ of human-like eyes is ⁇ Only the formed and reproduced images 3 and 6 can present a stereo image.
  • the glasses-type dual-screen display can display stereo images, but also the glasses-type dual-image television can have both stereo and flat functions.
  • FIG. 7 when the change-over switch 16 is in the A state, the working system of FIG. 7 is the same as that of FIG. 5. At this time, the left and right video signals 11 and 12 can present the stereoscopic image 10 in FIGS. 4 and 5. When in the B state, the left and right video signals 11 and 12 are the same video signal. Their signals are shown in Figure 7 and are provided separately by the left camera 14. At this point, they form a flat image 8.
  • the transfer switch door 16 may be provided between the dual cameras 14 and 15 shown in FIG. 7 and the left and right video signal generating units, that is, the input terminals of the left and right video signals 11 and 12; and may also be provided on the left and right video signals 11 and 12 Output.
  • Fig. 8 is a plan view.
  • the left and right cameras 14 and 15 capture the scenes 17, 18, and 19, and in the perspective view, there is a spatial depth distance H0 and Hl between them.
  • Such distance values HO and HI cannot be seen in a single-lens plane image.
  • the viewing angle differences ⁇ 1, ⁇ , and ⁇ 2 formed by the scenes 17, 18, and 19 and the left and right cameras 14 and 15, respectively are different. It is these differences in viewing angles of different sizes that show differences in depth between scenes in the stereogram.
  • Different H values or different ⁇ values in FIG. 8 can make a person's eyes have a certain range of viewing distance or viewing angle adjustment and change when viewing a stereo image.
  • the threshold value and ⁇ value of a plane image are fixed values, and there is no room for adjustment and change when the eyes of a human are viewed. Therefore, when watching stereoscopic television images with spatial depth changes with both eyes, it is not easy to generate the fatigue caused by flat television images without spatial depth changes.
  • FIG. 9 is a schematic diagram of a glasses-type stereoscopic television system using the above method according to the present invention, and specifically illustrates the application of the virtual image synthesis method for spatial stereoscopic images of the present invention.
  • FIG. 9 is a schematic perspective view of the left and right movement parts in the glasses-type dual-screen display, and the parts of the outer frame housing of the glasses are omitted. Among them, arrows 27 and 28 indicate the direction in which the eyes of a person view the display image after putting on the glasses frame.
  • 23 and 29 are left and right screens displaying images 3 and 6.
  • images 3 and 6 can be displayed respectively.
  • the left and right optical lenses 24 and 30 can display the left and right images 3 and 6 in the direction of the arrows 27 and 28 of the left and right eyes of the person, showing virtual images 8 and 9, and the left and right reflective dustproof glass windows 26 and 31 are embedded in the left and right movements. Sealing shells 25 and 32.
  • the optical imaging system formed by the left and right screens 23 and 29 and the left and right optical lenses 24 and 30 may also be combined with other existing optical lenses (such as a convex mirror, a concave mirror, or a convex mirror and a concave mirror).
  • other existing optical lenses such as a convex mirror, a concave mirror, or a convex mirror and a concave mirror.
  • a combination of optical lenses (mirrors) forms another type of optical imaging system with the same efficacy.
  • the left and right video signals 11 and 12 received are two independent, and there is a difference in viewing angle between each other. Overlapping the spatial virtual images 8 and 9 formed by the two video signals 11 and 12 with different viewing angles on the same space, that is, space 7 in FIG. 4 and FIG. 5, a stereo image 10 is formed.
  • the circuit on the plates 21 and 22 in the above left and right movements will be as shown in Fig. 7
  • the video signals 11 and 12 recorded by the dual cameras 14 and 15 provided to the dual screens 23 and 29 are displayed through the optical lenses 24 and 30 to the spatial stereo image door 10 in FIGS. 4 and 5.
  • the glasses-type dual-screen display shown in FIG. 9 is a stereoscopic image display. Not only this, if the left and right plates 22 and 21 and the connection of the video signals 11 and 12 are set according to the two states of A and B of the changeover switch 16 of FIG. 7, the above-mentioned glasses-type dual-screen display, That is, a stereoscopic image can be displayed by the change-over switch 16, and a planar image can also be displayed by the change-over switch door 16.

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)

Abstract

L'invention concerne un procédé mis en oeuvre dans un système de télévision stéréoscopique dans lequel des images virtuelles sont synthétisées en une image stéréoscopique ainsi que la télévision stéréoscopique de type lunettes qu'utilise ce procédé. Selon ce procédé, deux images planes indépendantes, obtenues par deux caméras et ayant un angle visuel l'une par rapport à l'autre, traversent la lentille optique et forment des images virtuelles dans le même espace dimensionnel. Les deux images virtuelles sont synthétisées de manière synchrone en une image stéréoscopique dimensionnelle. Dans la télévision stéréoscopique de type lunettes qu'utilise le procédé, une paire de lentilles optiques et une paire d'écrans sont montées sur la monture des lunettes et entre les deux écrans se trouvent deux puces dans lesquelles sont disposés des circuits imprimés fournissant les signaux vidéo gauche et droite. Ces signaux sont deux signaux vidéo différents indépendants et synchrones obtenus par deux caméras et ayant un angle visuel en terme d'oeil humain l'un par rapport à l'autre selon le même objet observé. Le procédé précité et la télévision stéréoscopique précitée qu'utilise ce procédé permettent de regarder une image stéréoscopique tridimensionnelle et une image bidimensionnelle.
PCT/CN2002/000019 2001-01-31 2002-01-16 Procede de synthese d'images virtuelles en images stereoscopiques et television stereoscopique de type lunettes Ceased WO2002073982A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN01108074A CN1359240A (zh) 2001-01-31 2001-01-31 虚像合成空间立体图像方法
CN01108074.4 2001-01-31

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WO2002073982A1 true WO2002073982A1 (fr) 2002-09-19

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Cited By (1)

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CN107147896A (zh) * 2017-05-26 2017-09-08 沈阳泰科易科技有限公司 摄像装置及3d增强现实直播摄像机

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US7604348B2 (en) * 2001-01-23 2009-10-20 Kenneth Martin Jacobs Continuous adjustable 3deeps filter spectacles for optimized 3deeps stereoscopic viewing and its control method and means
CN100518334C (zh) 2005-01-07 2009-07-22 鸿富锦精密工业（深圳）有限公司 三维显示电子装置
CN104125452A (zh) * 2014-08-08 2014-10-29 北京行云时空科技有限公司 一种面向立体眼镜的2d及3d图像显示和操作控制系统

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US5701154A (en) * 1994-11-01 1997-12-23 Dasso; John M. Electronic three-dimensional viewing system
CN1183006A (zh) * 1996-11-18 1998-05-27 李清义 一种三维空间图像的产生方法及装置
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US4743964A (en) * 1984-08-10 1988-05-10 Giravions Dorand Method and device for recording and restitution in relief of animated video images
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CN107147896A (zh) * 2017-05-26 2017-09-08 沈阳泰科易科技有限公司 摄像装置及3d增强现实直播摄像机

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CN1359240A (zh) 2002-07-17
CN1473441A (zh) 2004-02-04

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