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Free multi visul point polyprojecting 3D displaying system and method

A three-dimensional display, multi-view technology, applied in stereo systems, optics, instruments, etc., can solve problems such as the inability to achieve large-screen stereo display, achieve real-time three-dimensional display, simple and accurate calibration process, and avoid image processing steps.

Inactive Publication Date: 2007-04-18
SHANGHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the fact that this new type of display mostly uses liquid crystal displays and is restricted by the development of liquid crystal flat panel display technology, it is still not possible to realize a real large-screen three-dimensional display.

Method used

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  • Free multi visul point polyprojecting 3D displaying system and method
  • Free multi visul point polyprojecting 3D displaying system and method
  • Free multi visul point polyprojecting 3D displaying system and method

Examples

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Embodiment Construction

[0038] A preferred example of the present invention is described as follows in conjunction with accompanying drawing:

[0039]Referring to Fig. 1, this free multi-viewpoint multi-projection three-dimensional display system consists of 1-5 pairs of color CCD cameras (1) for taking pictures, one color CCD camera (5) for calibration, and 2-8 projectors ( 2), a large-screen display terminal (3), a calibration board (6), a computer (4) equipped with a multi-channel synchronous image acquisition card and a multi-channel output graphics card, the calibration board is used for the projector (2) calibration. Wherein, the computer (4) is connected with the video camera (1) through the image acquisition card and connected with the projector (2) through the multi-channel output display card, there is a set of image source video encoding program in the computer (4), and a set of projector calibration program and a set of stereoscopic image stitching programs.

[0040] This three-dimensio...

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Abstract

The invention relates to free multi-viewpoint multi-projection three-dimensional display system and method. The system includes one to five videotape color CCD video cameras, one calibration color CCD video camera, two to eight projectors, one large screen display terminal, one calibration plate, and the compute set multi-path synchronization image acquisition card by which it is connected with the video camera, and multi-path output display card by which it is connected with the projector. The method includes the steps that image source video frequency coding, projector calibration, stereo image mosaicking. The invention can realize large screen vivid three-dimensional multi-projection display based on computer vision technology.

Description

technical field [0001] The invention relates to a three-dimensional display system and method, in particular to a free multi-viewpoint multi-projection three-dimensional display system and method. Background technique [0002] Projection display is a kind of three-dimensional display method. There are many ways to display 3D images, mainly divided into those that require auxiliary tools and those that do not. Early stereoscopic display auxiliary tools mainly include helmet type and glasses type, and the glasses type has red and blue sheets, polarizers, etc. These three-dimensional display methods restrict people's viewing freedom due to the need to wear tools. [0003] Research on 3D display methods that do not require auxiliary tools has been extensively developed. This will free people from glasses and helmets, and be able to freely watch stereoscopic images, enhancing the ease of use, interactivity and fun of use of the system. At present, the three-dimensional displa...

Claims

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Application Information

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IPC IPC(8): G06F3/147G06F3/00G03B29/00H04N13/00H04N15/00
Inventor 张之江费洁莹于瀛洁马赫张兆晨毕家瑜
Owner SHANGHAI UNIV
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