WO2018177031A1 - 一种反射式环绕显示系统 - Google Patents

一种反射式环绕显示系统 Download PDF

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Publication number
WO2018177031A1
WO2018177031A1 PCT/CN2018/075414 CN2018075414W WO2018177031A1 WO 2018177031 A1 WO2018177031 A1 WO 2018177031A1 CN 2018075414 W CN2018075414 W CN 2018075414W WO 2018177031 A1 WO2018177031 A1 WO 2018177031A1
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WIPO (PCT)
Prior art keywords
image
surrounding
reflective
surround
display system
Prior art date
Application number
PCT/CN2018/075414
Other languages
English (en)
French (fr)
Inventor
罗镇邦
Original Assignee
迎刃而解有限公司
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Filing date
Publication date
Application filed by 迎刃而解有限公司 filed Critical 迎刃而解有限公司
Priority to JP2018536126A priority Critical patent/JP2019518977A/ja
Priority to KR1020197009237A priority patent/KR20190075056A/ko
Priority to US16/482,796 priority patent/US20200233233A1/en
Priority to EP18775542.6A priority patent/EP3605200A4/en
Publication of WO2018177031A1 publication Critical patent/WO2018177031A1/zh

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Classifications

    • 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
    • G02B30/60—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images involving reflecting prisms and mirrors only
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/14—Systems for two-way working
    • H04N7/141—Systems for two-way working between two video terminals, e.g. videophone
    • H04N7/142—Constructional details of the terminal equipment, e.g. arrangements of the camera and the display
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/005—Projectors using an electronic spatial light modulator but not peculiar thereto
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/14—Details
    • G03B21/28—Reflectors in projection beam
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B37/00—Panoramic or wide-screen photography; Photographing extended surfaces, e.g. for surveying; Photographing internal surfaces, e.g. of pipe
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/001—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes using specific devices not provided for in groups G09G3/02 - G09G3/36, e.g. using an intermediate record carrier such as a film slide; Projection systems; Display of non-alphanumerical information, solely or in combination with alphanumerical information, e.g. digital display on projected diapositive as background
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/41—Structure of client; Structure of client peripherals
    • H04N21/4104—Peripherals receiving signals from specially adapted client devices
    • H04N21/4122—Peripherals receiving signals from specially adapted client devices additional display device, e.g. video projector
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/436—Interfacing a local distribution network, e.g. communicating with another STB or one or more peripheral devices inside the home
    • H04N21/43615—Interfacing a Home Network, e.g. for connecting the client to a plurality of peripherals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs
    • H04N21/4402—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display
    • H04N21/440263—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display by altering the spatial resolution, e.g. for displaying on a connected PDA
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/60—Control of cameras or camera modules
    • H04N23/698—Control of cameras or camera modules for achieving an enlarged field of view, e.g. panoramic image capture
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/14—Systems for two-way working
    • H04N7/15—Conference systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
    • H04N7/183—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast for receiving images from a single remote source
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/64—Constructional details of receivers, e.g. cabinets or dust covers

Definitions

  • the present invention relates to a reflective surround display system, and more particularly to a fisheye image using mirror reversed processing as a source image and formed by optical reflection using a specific arrangement between the source image and the surrounding reflective surface
  • a reflective panoramic surround display system that surrounds the virtual image, giving the viewer a virtual reality experience.
  • the panoramic surround display system can be ideally used in a wide variety of applications, such as screens that can be used to expand computer systems, provide long-distance communication, play wide-screen panoramic movies, and create for simulation, training, virtual tours, or Video games for virtual reality and more.
  • Related solutions currently available in the prior art include: 1) a virtual reality system with the aid of a VR HMD (head mounted visual device); 2) a surround display system with multiple flat displays; 3) A panoramic projection system for projection of a projector on an interior wall or other surface of a house; 4) a curved screen television.
  • a head-mounted visual device such as an eye mask
  • the user experience is not good.
  • scheme 2) For scenario 2), the panoramic image needs to be segmented by means of software or hardware from a particular vendor and further displayed separately on multiple planar LED displays. Therefore, scheme 2) often requires many flat-panel displays to produce a 360-degree surround experience, and in fact, in many specific applications using scheme 2), the field of view is less than 180 degrees.
  • Solution 3) relies on projecting a surround image onto a projection screen or wall, thus requiring a specific field environment (such as the interior of the room), and also requiring the projector to be installed or set up at a particular site.
  • scheme 3) often requires software and pre-processing tools for segmentation processing, and combines projected images and the like according to field dimensions, so that the application range thereof is very limited and costly.
  • the horizontal field of view is much less than 180 degrees, and there are problems with limited application range and high cost.
  • the fisheye lens has the characteristics of compact structure, small size, not easy to damage, and low technical requirements compared with the multi-lens system. Therefore, the panoramic monitoring system with the fisheye lens as the core has become a panoramic view in recent years.
  • One of the hot spots of surveillance research is distorted, and the effect of the human eye observation is poor, and the image recognition effect is also poor, which makes the practicality of the fisheye lens lower.
  • Fisheye image correction is divided into 2D and 3D correction.
  • 2D fisheye image correction directly maps pixel points in the fisheye image to the corrected image;
  • 3D fisheye image correction is the projection of pixel points in the fisheye image into space and then according to The calibration model maps it into the corrected image.
  • the object of the present invention is to solve the above problems in the prior art, and to provide a reflective panoramic surround display system which is cost-effective, simple in structure and widely used.
  • the following is intended to be a brief summary of the technical solutions of the present invention and is not intended to limit the scope of the invention.
  • a reflective surround display system includes: a flat display panel for displaying a source image; and a surrounding reflective surface disposed opposite to the flat display panel for reflecting the source image, Wherein, the source image is reflected by the surround reflection so that an observer can view a surround image corresponding to the source image.
  • the surrounding image is a virtual image formed behind the surrounding reflecting surface with respect to the observer, and the surrounding image is not formed on any screen.
  • the observer is surrounded by the surrounding reflecting surface and located at an inner circumference of the surrounding reflecting surface, and the observer may be a camera or a person's naked eye.
  • the source image is a fisheye image subjected to mirror inversion processing
  • the fisheye image may be a motion video or a still photo
  • the surround image is a panoramic surround image.
  • the surrounding reflecting surface is an axisymmetric shape in which a bus bar is rotated around a central axis, and a central axis of the surrounding reflecting surface is perpendicular to the planar display panel and passes through the The center of the fisheye image.
  • the busbar surrounding the reflecting surface is a straight line or a curved line.
  • the curvature is a parabola or an arc.
  • the surrounding angle of the surrounding reflecting surface is equal to or less than 360 degrees, and the effective image area of the source image corresponds to the surrounding angle of the surrounding reflecting surface.
  • the surrounding angle is 360 degrees, 270 degrees, 180 degrees or 90 degrees.
  • one or more of the surrounding reflecting surfaces are arranged in a coaxial manner, and if the surrounding reflecting surface is more than one layer, the surrounding reflecting surface should be a transparent material.
  • the effective image area of the source image is formed in one-to-one correspondence with two or more layers of the surrounding reflective surface.
  • the reflective panoramic surround display system provided by the invention has a simple structure and is cost-effective, and can display a panoramic surround image (dynamic video or still photo) within a range of 360 degrees (for example, 180 degrees, 270 degrees, etc.) and is observed. Provide an immersive virtual experience.
  • the reflective surround display system of the present invention can use a fisheye image as a source image, and in particular, a photo or video taken by a 360 degree camera or a fisheye camera that is common in the market can be used.
  • the reflective surround display system of the present invention can reflect source images and form panoramic surround images in real time without software processing.
  • a panoramic surround image can be formed in real time regardless of the resolution of the source image.
  • the reflective surround display system of the present invention can provide a comfortable naked-eye virtual reality experience, and the viewer does not need to wear a specific eye like a conventional head-mounted device for virtual reality, greatly improving the comfort of the experience.
  • the reflective surround display system of the present invention can be widely applied to various applications requiring a surround display system, including remote video conferencing and virtual reality.
  • the reflective panoramic surround display system of the present invention can be used in a wide variety of products and sizes, such as a second display including a panoramic surround display as a desktop computer, as a panoramic surround display device within the telepresence device, and the use of such A small theater that surrounds the display device in a panoramic view.
  • FIG. 1 shows a cross-sectional structural arrangement of a reflective panoramic surround display system in accordance with a preferred embodiment of the present invention, showing a cylindrical panoramic surround view.
  • FIG. 2 is a schematic view showing the geometric configuration of a surrounding reflecting surface in the reflective panoramic surround display system shown in FIG. 1, in which the busbar surrounding the reflecting surface is a straight line.
  • FIG. 3 is a top plan view of the reflective panoramic surround display system of FIG. 1.
  • FIG. 4 is an example of a fisheye image displayed on a flat display panel in the reflective panoramic surround display system shown in FIG. 1 (source image is from https://theta360.com/en/gallery/videos.html) .
  • Figure 5 illustrates a partial image of a surround image corresponding to the fisheye image shown in Figure 4 as seen by an observer in a reflective panoramic surround display system in accordance with a preferred embodiment of the present invention.
  • Figure 7 illustrates a partial image of a surround image corresponding to the fisheye image shown in Figure 6 as seen by an observer in a reflective panoramic surround display system in accordance with a preferred embodiment of the present invention.
  • Fig. 8 is a schematic view showing the geometric configuration of a surrounding reflecting surface in a reflective panoramic surround display system according to a modification of the present invention, in which the busbar surrounding the reflecting surface is curved.
  • Figure 9 is a partial cross-sectional structural view of a reflective panoramic surround display system in accordance with a variation of the present invention, showing a spherical surround effect.
  • Figure 10 is a partial cross-sectional structural view of a reflective panoramic surround display system in accordance with a variation of the present invention, showing a spherical surround effect having a larger vertical field of view.
  • Figure 11 is a partial cross-sectional structural view of a reflective surround display system in accordance with a variation of the present invention, showing a tapered surround effect.
  • Figure 12 is a partial cross-sectional structural view of a reflective surround display system in accordance with a variation of the present invention, showing an inverted tapered surround effect.
  • Figure 13 is a partial cross-sectional structural view showing a reflective surround display system according to a modification of the present invention, showing an arrangement in which the central rotating axis of the surrounding reflecting surface is not perpendicular to the flat display panel.
  • Figure 14 is a schematic illustration of a non-360 degree surrounding reflective surface in a reflective surround display system in accordance with a variation of the present invention, showing an example of a 180 degree wrap.
  • 15 is an application example of a 180-degree circumferential reflecting surface in a reflective surround display system according to a modification of the present invention, showing that the busbar surrounding the reflecting surface is a 45-degree straight line (inverted conical surface) and a curved line (for example, a parabola).
  • the busbar surrounding the reflecting surface is a 45-degree straight line (inverted conical surface) and a curved line (for example, a parabola).
  • FIG. 1 shows a cross-sectional structural arrangement of a reflective panoramic surround display system in accordance with a preferred embodiment of the present invention, showing a cylindrical panoramic surround view 3.
  • 2 is a schematic view showing the geometric configuration of a surrounding reflecting surface in the reflective panoramic surround display system shown in FIG. 1, in which the busbar surrounding the reflecting surface is a straight line.
  • 3 is a top plan view of the reflective panoramic surround display system of FIG. 1.
  • a flat display panel 1 displays a fisheye image 12 as a source image on a side facing the surrounding reflecting surface 2, which surrounds
  • the shape of the reflecting surface 2 is an inverted frustoconical surface whose bus bar 22 has an appropriate inclination angle (preferably 45 degrees) with respect to the central rotation axis 21 so as to reflect the source image and surround the reflecting surface as indicated by the arrow in the figure.
  • the outer circumference of 2 forms a cylindrical panoramic surround image 3. According to the principle of optical reflection, it is known that the panoramic surround image 3 seen by the observer O is a virtual image and is not formed on any screen.
  • the frustoconical surface formed by a straight line as a bus bar as shown in FIG. 2 is used as a surrounding reflecting surface, and the cost is compared with other modified examples in FIGS. 8, 9, and 10 below. It is cheaper and easier to manufacture.
  • the central rotation axis 21 surrounding the reflection surface 2 coincides with the normal 11 of the flat display panel 1, and passes through the center of the fisheye image 12 as a source image.
  • a fisheye image 12 (for example, a motion video or a still photo) is displayed on the flat display panel 1, and the center of the fisheye image 12 and the central rotation axis of the surrounding reflection surface 2 coincide at X.
  • FIG. 4 is an example of a fisheye image 12 displayed on the flat display panel 1 in the reflective panoramic surround display system shown in FIG. 1.
  • Figure 5 illustrates a partial image of a surround image corresponding to the fisheye image shown in Figure 4 as seen by an observer in a reflective panoramic surround display system in accordance with a preferred embodiment of the present invention.
  • the fisheye image shown in Fig. 4 is taken from the position of the bird's-eye view of the real scene, and the circular dotted line in the figure corresponds to the outer circumference of the surrounding reflecting surface.
  • a reflective panoramic surround display system which reflects the fisheye image around a reflecting surface to form a 360 degree panoramic view (the horizontal direction of view remains continuous) surround image, in which case the surround image is reproduced
  • the surrounding panoramic field of the original realistic scene As seen by the observer, the surround image is located behind the surrounding reflective surface, as in the case of people viewing a flat mirror, in other words, the surround image is a virtual image and is not formed on any screen.
  • the observer (for example, the naked eye or the camera) is located on the inner circumference of the surrounding reflecting surface, and in order to obtain a good viewing effect, the position of the observer should be near the central axis of the surrounding reflecting surface.
  • FIG. 6 is another example of the fisheye image 12 shown on the flat display panel 1 in the reflective panoramic surround display system shown in Fig. 1, in which the circular dotted line corresponds to the outer circumference of the surrounding reflecting surface.
  • Figure 7 illustrates a partial image of a surround image corresponding to the fisheye image shown in Figure 6 as seen by an observer in a reflective panoramic surround display system in accordance with a preferred embodiment of the present invention.
  • Flat display panels suitable for use in the reflective panoramic surround display system of the present invention include, but are not limited to:
  • any other flat display mechanism capable of producing a well-lit image such as a bulletin light box.
  • the geometry of the surrounding reflecting surface can be described or configured to rotate a bus bar about a central axis of rotation.
  • the bus bar is preferably a straight line 22 and can be purposely placed between the bus bar and the central axis of rotation.
  • the angle of inclination is 45 degrees, i.e., a cylindrical panoramic surround image surrounding the viewer is formed as shown in FIG.
  • a curve 22 is used instead of the straight line in FIG. 2 as a bus bar, and is rotated around the central rotating shaft 21 to form a surrounding reflecting surface 2 as a modified example.
  • Figure 9 is a partial cross-sectional structural view of a reflective panoramic surround display system in accordance with a variation of the present invention, showing a spherical surround effect.
  • Figure 10 is a partial cross-sectional structural view of a reflective surround display system in accordance with a variation of the present invention, showing a spherical surround effect having a larger vertical field of view.
  • Figure 11 is a partial cross-sectional structural view of a reflective surround display system in accordance with a variation of the present invention, showing a tapered surround effect.
  • Figure 12 is a partial cross-sectional structural view of a reflective surround display system in accordance with a variation of the present invention, showing an inverted tapered surround effect.
  • FIG. 9 a virtual image of the spherical field of view is generated in FIG.
  • the virtual image of the spherical field of view is similarly generated in Fig. 10, but has a larger field of view in the vertical direction, and thus can be ideally used for applications such as theaters.
  • the arrangement for generating different surround effects as shown in FIGS. 9 to 12 may select specific parameters of the fisheye lens or software for generating the fisheye image so that the observer is watching the virtual image. Get the best visual experience.
  • Figure 13 is a partial cross-sectional structural view showing a reflective surround display system according to a modification of the present invention, showing an arrangement in which the central axis of the surrounding reflective surface is not perpendicular to the flat display panel.
  • the central rotating axis (and the position of the observer) has an oblique angle ⁇ with the flat display panel 1, which may be an observer. Lying on a sloping bed, the sloping bed is equipped with a surround display system in accordance with the present invention.
  • the observer still experiences the panoramic surround effect, but the geometry of the panoramic surround image 3 formed around the outer circumference of the reflective surface 2 is neither symmetrical cylindrical nor conical.
  • the source image may no longer be a conventional fisheye image, but need to be adjusted according to the tilt angle, for example, the adjusted source image format by software to pass the reflective surround display system. Map properly on the surrounding field of view.
  • the surrounding reflective surface is not limited to a symmetrical shape with a fixed busbar (alignment).
  • a symmetrical shape with a fixed busbar curve or line
  • the fisheye image used as the source image may be, for example, when the central axis of rotation of the symmetrical geometry of the surrounding reflective surface is perpendicular to the planar display panel:
  • the fisheye image displayed on the flat display panel should be a mirror-reversal image. This can be accomplished by image playback hardware or software image flipping functions, such as LED TVs, desktop computers or media projectors that display, play or project images onto a flat display panel to counteract the specular reflection effect of the surrounding reflective surface.
  • 360 cameras or software that generate fisheye images can use different types of fisheye lenses or fisheye functions.
  • a particular fisheye lens or fisheye function suitable for the reflective surface can be selected.
  • Surround angle is less than 360 degree( Less-than-360-degree )
  • FIG 14 is a schematic illustration of a non-360 degree surround reflective surface in a reflective panoramic surround display system in accordance with a variation of the present invention, showing an example of a 180 degree wrap.
  • a 180 degree surround reflection surface 2 is used, and the smaller flat display panel 1 is used to display half of the fisheye image.
  • the embodiment of Figure 14 is suitable for use with a 16:9 LED display as the flat display panel 1, which would be a very cost effective way to provide a 180 degree panoramic surround image system for personal use.
  • the transmission medium can select television and internet broadcast channels, Blu-ray discs or other digital media; as shown in FIG. 15, the busbar of the surround reflection surface 2 of the panoramic surround display system lists 45 degrees.
  • reference numeral a represents a structure including a flat display panel 1 (for example, an LED TV of 16:9) and a surrounding reflecting surface 2 having a 45-degree straight line of a bus bar.
  • the structure of the surrounding reflecting surface 2 including the flat display panel 1 (for example, LED TV of 16:9) and the bus bar as a curve (for example, a parabola) is denoted by reference numeral b.
  • the received isometric fisheye image can be directly used for display; for the busbar surrounding the reflecting surface 2, the curve (for example, a parabola) structure,
  • the fisheye image can be converted, for example by an external computer or an image conversion chip built into the TV or projector, to produce a specific fisheye function image suitable for the curved surface of the curve. This will allow manufacturers to produce surround reflection surfaces of different shapes and sizes for different costs and application scenarios.
  • the fisheye image as the source image will be correspondingly composed of a plurality of concentric rings having the same center, wherein each annular fisheye image is reflected by the surrounding reflective surface of the corresponding layer, thereby forming Two or more layers of virtual image at different distances from the observer to create a special 3D visual effect.
  • the multilayer surrounding reflective surface herein may also be formed by multiple rotations and spiraling from the central axis. It goes without saying that in this case, the format of the source image needs to be customized to match the reflective surface of this particular configuration.
  • the reflective surround display system in accordance with the present invention does not rely on the resolution of a flat display panel or source image.
  • the resolution upgrade can be done by simply replacing the LED panel display without changing the surrounding reflective surface, or even changing the housing or fixture of the product, as long as the same size is used.
  • the LED panel display is OK.
  • the present reflective surround display system forms a panoramic surround image by means of pure optical reflection using a physical reflective surface without any software segmentation and blending processing.
  • the user or observer is not covered by wearable equipment and the visual experience is more comfortable.
  • This reflective surround display system is resistant to glare (glare due to reflective surfaces) and is virtually glare-free for the viewer in most cases, allowing for clear video or photos of panoramic images.
  • the image of the reflective surround display system formed behind the reflective surface gives the viewer a sense of space/depth effect
  • the present invention can be used in a wide variety of products and sizes, including a panoramic surround display as a second display for a desktop computer, as a panoramic video conferencing display within a telecommunications facility, and as a small theater using such a surround display system.
  • the invention can even be used as a panoramic docking adapter above the screen of a mobile phone to create miniature panoramic images that can be viewed via some small cameras, such as laparoscopic cameras.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Computer Hardware Design (AREA)
  • Theoretical Computer Science (AREA)
  • Lenses (AREA)
  • Stereoscopic And Panoramic Photography (AREA)
  • Optical Elements Other Than Lenses (AREA)

Abstract

一种反射式环绕显示系统，包括：用于显示源图像的平面显示面板(1)；以及与平面显示面板(1)相对设置，用于反射源图像的环绕反射面(2)，其中，通过环绕反射面(2)对源图像进行反射，使得观察者能够观看到与源图像相对应的环绕图像(3)；环绕图像(3)为相对于观察者形成在环绕反射面(2)之后方的虚像，环绕图像(3)不形成在任何屏幕上；观察者被环绕反射面(2)包围且位于环绕反射面(2)的内周之内。对观察者提供360度或者小于360度(例如180度和270度等)的全景环绕图像(3)，环绕图像(3)包括运动视频或静止照片。

Description

一种反射式环绕显示系统 技术领域
本发明涉及一种反射式环绕显示系统，尤其是涉及一种使用经过镜面反转处理的鱼眼图像作为源图像，并利用所述源图像与环绕反射面之间的特定布置通过光学反射而形成环绕虚像，从而使观察者获得虚拟现实体验的反射式全景环绕显示系统。
 背景技术
全景环绕显示系统可以理想地用于各种各样的应用场合，例如可以被用来扩展计算机系统的屏幕，提供远距离通信，播放宽屏幕全景电影，以及创建用于模拟、训练、虚拟旅游或视频游戏的虚拟现实等等。目前现有技术中可供利用的相关解决方案包括有：1）借助于VR HMD（头戴式可视设备）的虚拟现实系统；2）具有多个平面显示器的环绕显示系统；3）使用多台投影仪在房屋内墙或其他表面上投影的全景投影系统；4）屏幕弯曲式电视。对于方案1）来说，观察者必须穿戴眼罩之类的头戴式可视设备，无法用裸眼直接体验虚拟现实，因此用户体验不佳。对于方案2）来说，则需要借助于特定供应商的软件或硬件对全景图像进行分割，并进一步分别显示在多个平面LED显示器上。因此方案2）往往需要许多平面显示器方才可以产生360度环绕体验效果，实际上在利用方案2）的许多具体应用中视场角都小于180度。方案3）依赖于将环绕图像投射在投影屏或墙面上，因而要求特定现场环境（例如房间内部），并且还要求在特定现场安装或设置投影仪。除此之外，方案3）往往还要求使用软件和预处理工具进行分割处理，并且根据现场维度来组合所投影的图像等，因此其应用范围具有很大局限性而且成本较高。对于方案4）来说，水平方向的视场角远远小于180度，同时还有应用范围受限和成本较高的问题。
另外，鱼眼镜头具有短焦距(f =6~16mm)、超大视场的优点(视场角约为180度至270度)，在虚拟实景、球幕电影、远程视频会议、管道检测、医疗内窥检查、机器人导航等领域得到广泛的应用。在全景监控方面，鱼眼镜头相较于多镜头式系统还具有结构紧凑、体积较小、不易损坏、技术要求低等特点，所以以鱼眼镜头为核心的全景监控系统也成为了近年来全景监控研究的热点之一。然而，鱼眼镜头所拍摄的图片存在畸变，不仅人眼观察的效果差，而且图像识别效果也很差，使鱼眼镜头的实用性降低。因此，除了在摄影艺术领域外，鱼眼图像都必须经过校正才能适合人眼观察或者采用图像识别技术来扩大鱼眼镜头的实用性。鱼眼图像校正分为2D和3D校正，2D鱼眼图像校正直接把鱼眼图像中的像素点映射到校正图像中；3D鱼眼图像校正是鱼眼图像中的像素点投影到空间中再根据校正模型将其映射到校正图像中。
虽然目前市场上不乏优良的鱼眼镜头，但对于鱼眼图像的校正却存在着诸多缺陷。由于鱼眼校正的运算量较大，很多软件方案虽然能够实现精确的校正，但是一般的处理器校正速度较慢，而较优良的处理器的成本较高，功耗较大，硬件方案能够快速校正，但是校正缺乏灵活性或系统结构不合理。因此，人们需要一种系统结构简单、容易升级并且能够低成本地校正鱼眼图像，以实现虚拟现实、远程视频会议和全景监控等各种用途的全景环绕显示系统。
 技术问题
本发明的目的就是要解决上述现有技术中存在的诸多问题，提供一种具有成本效益、结构简单且应用广泛的反射式全景环绕显示系统。下文的目的是用于简要概括本发明的技术方案而并非用于限制本发明的范围。
 技术解决方案
根据本发明的技术方案，提供一种反射式环绕显示系统，包括：用于显示源图像的平面显示面板；以及与所述平面显示面板相对设置，用于反射所述源图像的环绕反射面，其中，通过所述环绕反射面对所述源图像进行反射，使得观察者能够观看到与所述源图像相对应的环绕图像。优选地，在上述根据本发明的技术方案中，所述环绕图像为相对于所述观察者形成在所述环绕反射面之后方的虚像，所述环绕图像不形成在任何屏幕上。优选地，在上述根据本发明的技术方案中，所述观察者被所述环绕反射面包围且位于所述环绕反射面的内周，所述观察者可以是照相机或人裸眼。
优选地，在上述根据本发明的技术方案中，所述源图像是经过镜面反转处理的鱼眼图像，所述鱼眼图像可以为运动视频或静止照片，所述环绕图像为全景环绕图像。
优选地，在上述根据本发明的技术方案中，所述环绕反射面为母线围绕中心轴线旋转而成的轴对称形状，所述环绕反射面的中心轴线垂直于所述平面显示面板并穿过所述鱼眼图像的中心。
优选地，在上述根据本发明的技术方案中，所述环绕反射面的母线为直线或曲线。
优选地，在上述根据本发明的技术方案中，所述曲为抛物线或弧线。
优选地，在上述根据本发明的技术方案中，所述环绕反射面的环绕角度等于或小于360度，所述源图像的有效图像区域与所述环绕反射面的环绕角度相对应。
优选地，在上述根据本发明的技术方案中，所述环绕角度为360度、270度、180度或90度。
优选地，在上述根据本发明的技术方案中，以同轴方式布置一层或多层所述环绕反射面，若所述环绕反射面多于一层，则所述环绕反射面应以透明材料制成，所述源图像的有效图像区域与两层或更多层所述环绕反射面一一对应。
 有益效果
本发明所提供的反射式全景环绕显示系统，其结构简单、具有成本效益，能够显示360度范围内（例如180度、270度等）的全景式环绕图像（动态视频或静态照片）并且给观察者提供身临其境的虚拟体验。
本发明的反射式环绕显示系统可以使用鱼眼图像作为源图像，尤其是可以使用由市场上常见的360度相机或鱼眼相机所拍摄的照片或视频。
本发明的反射式环绕显示系统可以反射源图像并且实时地形成全景式环绕图像而无需软件处理。无论源图像的分辨率如何都可以实时地形成全景式环绕图像。
本发明的反射式环绕显示系统可以提供舒适的裸眼虚拟现实体验，观察者不需要像传统的用于虚拟现实的头戴式设备那样穿戴特定的眼睛，极大地提高了体验舒适度。
本发明的反射式环绕显示系统能够广泛地应用于要求环绕显示系统的各种用途，包括远程视频会议和虚拟现实等。
本发明的反射式全景环绕显示系统能够以各种各样的产品和尺寸来使用，例如包括全景环绕显示器作为台式计算机的第二显示器，作为远程呈现设备内部的全景环绕显示装置，以及使用这种全景环绕显示装置的小型影院等。
本发明的特征、技术效果和其他优点将通过下面结合附图的进一步说明而变得显而易见。
 附图说明
本发明的实施例将结合附图详细地进行说明，以使其更好地得以理解，附图中的构成部件并非按比例来绘制。现在将参考附图通过示例的方式来描述本发明，其中：
图1显示了根据本发明优选实施例的反射式全景环绕显示系统的剖面结构布置，图中示出了圆柱状全景环绕图。
图2为图1所示的反射式全景环绕显示系统中的环绕反射面的几何构造示意图，图中环绕反射面的母线为直线。
图3为图1所示的反射式全景环绕显示系统的俯视图。
图4为显示在图1所示的反射式全景环绕显示系统中的平面显示面板上的鱼眼图像的一个例子（源图像来自于https://theta360.com/en/gallery/videos.html）。
图5示出了在根据本发明优选实施例的反射式全景环绕显示系统中，观察者所看到的对应于图4所示的鱼眼图像的环绕图像的部分图像。
图6为显示在图1所示的反射式全景环绕显示系统中的平面显示面板上的鱼眼图像的另一个例子（源图像来自于https://www.youtube.com/watch?v=H6SsB3JYqQg）。
图7示出了在根据本发明优选实施例的反射式全景环绕显示系统中，观察者所看到的对应于图6所示的鱼眼图像的环绕图像的部分图像。
图8为根据本发明变形例的反射式全景环绕显示系统中的环绕反射面的几何构造示意图，图中环绕反射面的母线为曲线。
图9为根据本发明变形例的反射式全景环绕显示系统的局部剖面结构布置示意图，图中示出了球状环绕效果。
图10为根据本发明变形例的反射式全景环绕显示系统的局部剖面结构布置示意图，图中示出了具有更大垂直视场角的球状环绕效果。
图11为根据本发明变形例的反射式环绕显示系统的局部剖面结构布置示意图，图中示出了锥状环绕效果。
图12为根据本发明变形例的反射式环绕显示系统的局部剖面结构布置示意图，图中示出了倒锥状环绕效果。
图13为根据本发明变形例的反射式环绕显示系统的局部剖面结构布置示意图，图中示出了环绕反射面的中心旋转轴不垂直于平面显示面板的布置情形。
图14为根据本发明变形例的反射式环绕显示系统中的非360度环绕反射面的示意图，图中示出了180度环绕的例子。
图15为根据本发明变形例的反射式环绕显示系统中的180度环绕反射面的应用例，示出了环绕反射面的母线为45度直线(倒圆锥形面)和曲线（例如抛物线）两种结构在16：9 视频传播样式中的应用例子。
 本发明的实施方式
下面，结合附图详细地说明本发明优选实施例的技术内容、构造特征以及所达到的技术目的和技术效果。在下文本发明的详细说明中，提及“一个实施例/变形例”，“某一实施例/变形例”等等，均表示所说明的实施例/变形例可能包括某一特定的特征、结构或特性，然而未必每个实施例/变形例都需要包括这一特定的特征、结构或特性。而且，这种用语未必就是指相同实施例。此外，当结合某一实施例/变形例来说明特定的特征、结构或特性时，在本领域技术人员的理解范围内应该意识到无论是否明确地加以说明，都会结合/变形例影响到该特征、结构或特性。
根据本发明的反射式全景环绕显示系统，在物理结构上必须具备如下两个部件：
（i）平面显示面板，其显示图像源的一侧面对着（ii）中的环绕反射面进行安装（例如放置在某些固件结构上）；
（ii）环绕反射面，其内反射面对着（i）中的平面显示面板进行安装（例如放置在某些固件结构上）。
图1显示了根据本发明优选实施例的反射式全景环绕显示系统的剖面结构布置，图中示出了圆柱状全景环绕图3。图2为图1所示的反射式全景环绕显示系统中的环绕反射面的几何构造示意图，图中环绕反射面的母线为直线。图3为图1所示的反射式全景环绕显示系统的俯视图。
图1至图3示出了本发明的基本优选实施例的结构和布置，其中，平面显示面板1在面对着环绕反射面2的一侧显示有作为源图像的鱼眼图像12，该环绕反射面2的形状为颠倒的截头圆锥面，其母线22相对于中心旋转轴21具有恰当的倾斜角度（优选为45度），以便如图中箭头所示那样反射源图像并且在环绕反射面2的外周形成一层圆柱形的全景环绕图像3。根据光学反射原理，可知观察者O所看到的该全景环绕图像3为虚像，并不形成在任何屏幕上。另外，本领域技术人员不难理解，如图2所示那样以直线为母线所形成的截头圆锥面作为环绕反射面，比起下文图8、图9和图10中的其他变形例，成本更加便宜且容易进行制造。
优选地，如图3所示，环绕反射面2的中心旋转轴21与平面显示面板1的法线11重合，并且通过作为源图像的鱼眼图像12的中心。参照图3，在平面显示面板1上显示着鱼眼图像12（例如运动视频或静态照片），鱼眼图像12的中心和环绕反射面2的中心旋转轴重合于X处。
图4为显示在图1所示的反射式全景环绕显示系统中的平面显示面板1上的鱼眼图像12的一个例子。图5示出了在根据本发明优选实施例的反射式全景环绕显示系统中，观察者所看到的对应于图4所示的鱼眼图像的环绕图像的部分图像。图4所示的鱼眼图像是从现实场景的俯视角的位置所拍摄的，图中的圆形虚线对应于环绕反射面的外周。根据本发明优选实施例的反射式全景环绕显示系统，其环绕反射面反射该鱼眼图像以形成360度全景（水平方向的视野保持连续）环绕图像，在此情况下，该环绕图像就再现了原始现实场景的环绕全景视场。如观察者所看到那样该环绕图像位于环绕反射面的后面，如同人们观看平面镜的情形，换言之，该环绕图像是虚像，并不形成在任何屏幕上。观察者（例如为裸眼或者照相机）位于环绕反射面的内周，为了获得好的观赏效果，观察者的位置应当在环绕反射面的中心轴附近。图6为显示在图1所示的反射式全景环绕显示系统中的平面显示面板1上的鱼眼图像12的另一个例子，图中的圆形虚线对应于环绕反射面的外周。图7示出了在根据本发明优选实施例的反射式全景环绕显示系统中，观察者所看到的对应于图6所示的鱼眼图像的环绕图像的部分图像。
下面，结合附图进一步说明构成本发明的反射式全景环绕显示系统的各部件或要素。
平面显示面板（ Flat Display Plane ）
适用于本发明的反射式全景环绕显示系统的平面显示面板包括但不限于：
-LED显示器；
-从视频或图像投影仪投影图像的背投屏幕；
-通过在一平面上组合两个或多个平面面板LED显示器而形成的装置；以及
-能够产生光线充足的图像（例如公告灯箱）的任何其他平面显示机构。
环绕反射面（ Surrounding Reflective Surface ）
该环绕反射面的几何形状可以被描述或构造为使一条母线围绕一中心旋转轴进行旋转而形成，在图2中，该母线优选地为直线22，并且可以特意设置母线与中心旋转轴之间的倾斜角为45度，即如图1所示形成环绕着观察者的圆柱形全景环绕图像。在图8中，采用曲线22取代图2中的直线作为母线，并围绕中心旋转轴21进行旋转而形成作为变形例的环绕反射面2。如图9至图12中所示的变形例，不同形状的母线将产生不同形状的环绕反射面2，不同形状的环绕反射面2以及环绕反射面2与平面显示面板1之间的不同布置，会产生不同几何形状的环绕视场效果。
图9为根据本发明变形例的反射式全景环绕显示系统的局部剖面结构布置示意图，图中示出了球状环绕效果。图10为根据本发明变形例的反射式环绕显示系统的局部剖面结构布置示意图，图中示出了具有更大垂直视场角的球状环绕效果。图11为根据本发明变形例的反射式环绕显示系统的局部剖面结构布置示意图，图中示出了锥状环绕效果。图12为根据本发明变形例的反射式环绕显示系统的局部剖面结构布置示意图，图中示出了倒锥状环绕效果。换言之，在图9中生成球形视场的虚像。在图10中同样地生成球形视场的虚像，但是在垂直方向上具有更大的视场角，因此可以理想地用于剧院之类的应用场合。本领域技术人员不难理解，图9至图12所示的用于产生不同环绕效果的布置方式，可以选择生成鱼眼图像的鱼眼镜头或软件的具体参数，以使得观察者在观看虚像时可以获得最佳的视觉体验。
图13为根据本发明变形例的反射式环绕显示系统的局部剖面结构布置示意图，图中示出了环绕反射面的中心轴不垂直于平面显示面板的布置情形。虽然在图13的变形例中采用了图1中的环绕反射面2的几何形状，但是其中心旋转轴（以及观察者的位置）却与平面显示面板1有一倾斜角度θ，这可能是观察者躺在倾斜床上的场景，该倾斜床配备有根据本发明的环绕显示系统。在此情况下，观察者仍然会体验到全景环绕效果，但是在环绕反射面2的外周所形成的全景环绕图像3的几何形状既不是对称圆柱形也不是圆锥形。进而，在此特定情况下，源图像也可以不再是常规的鱼眼图像，而是需要根据该倾斜角度进行调整，例如通过软件来进行调节后的源图像格式，以便通过反射式环绕显示系统在环绕视场上恰当地映射出来。
本领域技术人员不难理解，对于特定视觉效果（非通常使用场合）而言，环绕反射面并不限于具有固定母线（定线）的对称形状。然而，在通常使用场合下，为了使跨越水平视场具有一致的360度全景环绕视觉效果，应当采用具有固定母线（曲线或直线）的对称形状。
源图像（ Source Image ）
根据本发明的优选实施例，在对称几何构造的环绕反射面的中心旋转轴垂直于平面显示面板时，作为源图像使用的鱼眼图像例如可以是：
-使用360度相机（例如Ricoh Theta）拍摄的视频或图片；
-使用带有鱼眼镜头的摄像机或照相机所记录的视频或图片；
-使用将平面全景图像转换为鱼眼图像的计算机软件所生成的鱼眼图像。
需要特别说明的是，在根据本发明的反射式全景环绕显示系统中，为了抵消镜面反射效应，显示在平面显示面板上的鱼眼图像应该是经过镜面反转（Mirror-reversal）的图像。这可以通过图像播放硬件或软件的图像翻转功能来实现，例如LED TV，台式计算机或者媒体投影器，它们显示、播放或投影图像到平面显示面板，以便抵消环绕反射面的镜面反射效应。
此外，生成鱼眼图像的360相机或软件可以使用不同种类的鱼眼镜头或鱼眼函数（Function）。然而，为了提供较好的实际视觉效果，可以选择适合于反射面的特定的鱼眼镜头或鱼眼函数。
环绕角度小于 360 度（ Less-than-360-degree ）
本领域技术人员不难理解，可以容易地应用上述反射式全景环绕显示来实现环绕角度小于360度的全景环绕显示，从而制作出更加具有成本效益的产品。图14为根据本发明变形例的反射式全景环绕显示系统中的非360度环绕反射面的示意图，图中示出了180度环绕的例子。在此情况下，使用一个180度环绕反射面2，并且使用较小的平面显示面板1来显示一半鱼眼图像即可。图14的实施例适合于使用16:9的LED显示器作为平面显示面板1，这将是一种非常具有成本效益的方式来提供180度全景环绕图像系统以供个人使用。基于目前比较常用的16：9 视频传播样式的应用例子，参见图15所示，将经过镜面反转的180度(半圆)等距(线性)鱼眼图像作为标准传输（Mirror flipped 180-degree equidistant fisheye image is used for transmission），传输媒介可以选择电视及互联网广播频道、蓝光光盘或其它数码媒介；参见图15所示，全景环绕显示系统的环绕反射面2的母线列举了45度直线(倒圆锥形面)和曲线（例如抛物线）两种结构，图中以标号a代表包括平面显示面板1（例如16：9的LED TV）和母线为45度直线的环绕反射面2的结构，以标号b代表包括平面显示面板1（例如16：9的LED TV）和母线为曲线（例如抛物线）的环绕反射面2的结构。对于环绕反射面2的母线为45度直线(倒圆锥形面)的结构，可直接使用所接收的等距鱼眼图像进行显示；对于环绕反射面2的母线为曲线（例如抛物线）的结构，可通过鱼眼图像转换，例如通过外置计算机或内置于TV 或投影机的图像转换芯片，产生出适合于该曲线反射面的特定鱼眼函数图像。这将方便制造商针对不同的成本和应用场景生产不同形状和大小的环绕反射面。
多层环绕反射面（ Multiple-layer reflective surface ）
根据本发明的变形例，还可以使用围绕同一中心旋转轴所安装的两层或多层环绕反射面（环绕角度小于或等于360度），以生成多于一层的全景环绕图像，只要环绕反射面的材料是透明即可，例如PVC。在此情况下，作为源图像的鱼眼图像将相应地由具有同一圆心的多个同心圆环所构成，其中各个圆环状的鱼眼图像被相应层的环绕反射面进行反射，从而形成在自观察者不同距离处的两层或多层虚像，以便构筑特殊的3D视觉效果。在进一步的变形例中，基于图2和图8，这里的多层环绕反射面还可以通过多次旋转并且从中心轴向外螺旋而形成。不言而喻，在此情况下，需要定制源图像的格式以便匹配这种特殊构造的反射面。
本发明的优点及广泛应用
根据本发明的反射式环绕显示系统并不依赖于平面显示面板或源图像的分辨率。例如，如果产品使用LED面板显示器作为平面显示面板，那么就可以通过仅仅替换LED面板显示器来完成分辨率升级，而无需改变环绕反射面，甚至无需改变产品的机壳或夹具，只要使用相同尺寸的LED面板显示器即可。
本反射式环绕显示系统通过借助于利用物理反射面的纯光学反射来形成全景环绕图像，无需任何软件分割和混合处理。
使用者或观察者不会被可穿戴的设备罩着，视觉体验更加舒适。
本反射式环绕显示系统可以抗眩光（因反射面造成的眩光），在大多数情况下对于观察者而言几乎是无眩光，这允许获得全景图像的清晰视频或照片。
本反射式环绕显示系统形成在反射面后面的图像（虚像）给与观察者一种空间/深度效应的感觉
因反射造成的部分极化（Partial Polarization）效应—使观察者的眼睛感到舒适
本发明可以被用于各种各样的产品和尺寸，包括全景环绕显示器作为台式计算机的第二显示器，作为远程通讯设施内部的全景视频会议显示器，以及使用这种环绕显示系统的小型影院。本发明甚至还可以作为手机屏幕上方的全景对接适配器，以创建可以经由一些小型摄像机（例如腹腔镜摄像机）观察的微型全景图像。
以上所揭露的仅为本发明的优选实施例而已，当然不能以此来限定本发明之权利范围，因此依本发明申请专利范围所作的等同变化，仍属本发明所涵盖的范围。应当理解，以上的描述意图在于说明而非限制。例如，上述实施例(和/或其方面)可以彼此组合使用。此外，根据本发明的启示可以做出很多改型以适于具体的情形或材料而没有偏离本发明的范围。通过阅读上述描述，权利要求的范围和精神内的很多其它的实施例和改型对本领域技术人员是显而易见的。

Claims (10)

  1. 一种反射式环绕显示系统，其特征在于，包括：用于显示源图像的平面显示面板；以及与所述平面显示面板相对设置，用于反射所述源图像的环绕反射面，其中，通过所述环绕反射面对所述源图像进行反射，使得观察者能够观看到与所述源图像相对应的环绕图像；所述环绕图像为相对于所述观察者形成在所述环绕反射面之后方的虚像，所述环绕图像不形成在任何屏幕上；所述观察者被所述环绕反射面包围且位于所述环绕反射面的内周之内。
  2. 如权利要求1所述的反射式环绕显示系统，其特征在于：所述观察者是照相机或人裸眼。
  3. 如权利要求2所述的反射式环绕显示系统，其特征在于：所述源图像是鱼眼图像，所述鱼眼图像为运动视频或静止照片，所述环绕图像为全景环绕图像。
  4. 如权利要求3所述的反射式环绕显示系统，其特征在于：所述源图像是经过镜面反转处理的鱼眼图像。
  5. 如权利要求4所述的反射式环绕显示系统，其特征在于：所述环绕反射面为母线围绕中心轴线旋转而成的轴对称形状，所述环绕反射面的中心轴线垂直于所述平面显示面板并穿过所述鱼眼图像的中心。
  6. 如权利要求5所述的反射式环绕显示系统，其特征在于：所述环绕反射面的母线为直线或曲线。
  7. 如权利要求6所述的反射式环绕显示系统，其特征在于：所述曲线为抛物线或弧线。
  8. 如权利要求1至7中任意一项所述的反射式环绕显示系统，其特征在于：所述环绕反射面的环绕角度等于或小于360度，所述源图像的有效图像区域与所述环绕反射面的环绕角度相对应。
  9. 如权利要求8所述的反射式环绕显示系统，其特征在于：所述环绕反射面的环绕角度的环绕角度为360度、270度、180度或90度。
  10. 如权利要求1至7中任意一项所述的反射式环绕显示系统，其特征在于：以同轴方式布置一层或多层所述环绕反射面，若所述环绕反射面多于一层，则所述环绕反射面应由透明材料制成，所述源图像的有效图像区域与两层或更多层所述环绕反射面一一对应。
     
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