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Method and system for rebuilding free viewpoint of multi-view video streaming

A multi-view video and viewpoint technology, which is applied in the fields of computer vision and image processing, can solve the problems such as the inability of users to pay attention to virtual viewpoints, the inability to use real-time acquisition, encoding and transmission of live broadcast systems, and the burden, so as to save network bandwidth requirements, The effect of saving hardware and software investment and technology costs, reducing processing power and performance requirements

Inactive Publication Date: 2007-08-08
PEKING UNIV
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AI Technical Summary

Problems solved by technology

On the one hand, this method can only be used to switch between two actual viewpoints, and cannot make the user pay attention to a virtual viewpoint between them for a long time; Encoded multi-view video streams cannot be used for real-time acquisition, encoding and transmission of live broadcast systems; even for pre-encoded multi-view video streams, when the number of users increases and the requirements are inconsistent, the server will end view generation brings a heavy burden

Method used

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  • Method and system for rebuilding free viewpoint of multi-view video streaming
  • Method and system for rebuilding free viewpoint of multi-view video streaming

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Embodiment Construction

[0015] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0016] As shown in FIG. 1 , the free-viewpoint video reconstruction system for multi-viewpoint video streams of the present invention consists of three parts: a front end 10 , an access network 20 and a client 30 . The front end 10 further includes three components: a camera 11 , a video capture / encoder 12 and a streaming media server 13 .

[0017] The camera 11 is connected to the video acquisition / encoder 12 through a high-speed data line, and multiple cameras 11 can be arranged and placed according to certain rules, thereby forming different forms of camera arrays, such as matrix type, line type, and arc type, etc. Wait.

[0018] Video acquisition / encoder 12 links to each other with video camera 11 by high-speed data line on the one hand, links to each other with stream media server 13 by local area network on the other hand; One video acquisition...

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Abstract

The invention relates to one free visual point re-form method and system of multi-point visual flow, which is characterized by the following: setting free point and free point player in customer end pattern user interface; setting several small windows and one float focus frame in guide device; user selects in free visual point guide area through mobile float focus frame; free visual point player receives relative visual point code flow with current float focus frame covered each windows from flow media servo; then transferring virtual visual point to integrate one middle virtual point for display.

Description

technical field [0001] The present invention relates to computer vision and image processing methods and systems, in particular to a free-viewpoint video reconstruction method and system for multi-viewpoint video streams. Background technique [0002] In recent years, with the continuous upgrading of video services, people are no longer satisfied with the simple visual information provided by traditional videos. Facing the diverse world around us, people need to observe and analyze from a more comprehensive and three-dimensional perspective. Thus, multi-viewpoint video technology came into being. Compared with traditional single-point video, multi-view video can provide different angles and different levels of information of a certain object or scene, and can synthesize these information to generate multi-angle, all-round free or stereoscopic vision. [0003] Raw data of multi-viewpoint video is generally collected by a collection of multiple cameras, and different types o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/24H04N7/173H04L29/06H04L12/28
Inventor 霍龙社高文王威王振宇
Owner PEKING UNIV
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