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Method for interactively playing panoramic video stream on CAVE projection system

A technology of panoramic video and projection system, applied in the field of digital media, can solve the problem of not supporting playback, and achieve the effects of low implementation cost, simple method, and easy popularization and application.

Inactive Publication Date: 2010-10-06
CHANGCHUN UNIV OF SCI & TECH
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  • Summary
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  • Description
  • Claims
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Problems solved by technology

Present panorama camera (for example the Ladybug panorama camera of PointGrey company) majority can save the panorama video of recording with the form of stream file, use existing 360 degree panorama video browser to play video stream on the display of single microcomputer, but not Support for playback on CAVE projection systems

Method used

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  • Method for interactively playing panoramic video stream on CAVE projection system
  • Method for interactively playing panoramic video stream on CAVE projection system
  • Method for interactively playing panoramic video stream on CAVE projection system

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Embodiment Construction

[0025] In order to make the features and advantages of the present invention clearer, the present invention will be further described below in conjunction with specific embodiments with reference to the accompanying drawings.

[0026] The main idea of ​​the present invention is: at first according to figure 2The shown CAVE projection cube ABCDEFGH determines its inscribed 3D sphere (201), according to the center P of the CAVE projection cube ABCDEFGH o Determine the cube A'B'C'D'E'F'G'H' (each face of the cube A'B'C'D'E'F'G'H' is parallel to a certain face of the cube ABCDEFGH), Connect the corresponding vertices of the cube A'B'C'D'E'F'G'H' and the cube ABCDEFGH to obtain six quadrangular trusses, namely the quadrangular trusses D'C'G'H'DCGH and the quadrangular trusses B 'C'G'F'BCGF, four-edge frustum A'E'F'B'AEFB, four-edge frustum A'E'H'D'AEHD, four-edge frustum A'B'C'D'ABCD, four-edge frustum Platform E'F'G'H'EFGH; four-sided platform D'C'G'H'DCGH, four-sided platform ...

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Abstract

The invention discloses a method for interactively playing a panoramic video stream on a CAVE projection system, which belongs to the technical field of digital media. A conventional 360-degree panoramic video browser does not support the interactive play of the panoramic video stream on the CAVE projection system. The method comprises the following steps of: mapping panoramic picture images onto a 3D sphere as textures, splitting a 360-degree all-round spherical view field into six sub-areas, and shooting a front sub-area, a rear sub-area, a left sub-area, a right sub-area and a zenith sub-area respectively by using five different virtual cameras to obtain the pictures on each projection screen of the CAVE projection system respectively. The method has the advantage of the capacity of solving the problem that the panoramic video stream cannot be interactively played on the CAVE projection system, simplicity, practicability, no need of expensive special equipment, real-time interaction capacity, relatively lower implementation cost and convenient popularization and application.

Description

technical field [0001] The invention belongs to the technical field of digital media, and relates to a method for interactively playing panoramic video streams recorded by a panoramic camera on a CAVE projection system. Background technique [0002] The CAVE projection system is a cave-type orthogonal multi-screen projection system. Images are projected onto the screen in the form of rear projection. The projection adopts the form of "virtual reality theater" and fully complies with the Showcase standard. The CAVE projection system is a cubic space. Typically, there is a projection screen on each of the front, back, left, and right walls, and there is also a projection screen on the zenith. Therefore, the CAVE projection system is an ideal device for displaying panoramic video images. Present panorama camera (for example the Ladybug panorama camera of PointGrey company) majority can save the panorama video of recording with the form of stream file, use existing 360 degree p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03B37/04H04N5/74
Inventor 陈纯毅杨华民范静涛丁莹韩成冯欣底晓强陈占芳张育力曲福恒权巍从立钢
Owner CHANGCHUN UNIV OF SCI & TECH
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