Video coding method in accordance with multi-view video standard

A multi-viewpoint video and video coding technology, which is applied in the field of video coding, can solve the problems of multi-viewpoint video encoder optimization difficulties, high cost of multi-viewpoint video encoder, and high encoding optimization requirements, so as to improve the quality or efficiency, and the encoding process Flexibility, the effect of improving coding efficiency

Active Publication Date: 2012-11-14
TSINGHUA UNIV +1
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The encoding algorithm of multi-view video is the same as that of H.264. Due to the complexity of the algorithm implementation, the cost of developing a new multi-view video encoder is relatively high.
At the same time, the data volume of multi-view video is much higher than that of H.264, and the optimization requirements for encoding are higher. It is also difficult to optimize the new multi-view video encoder to a faster speed.

Method used

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  • Video coding method in accordance with multi-view video standard
  • Video coding method in accordance with multi-view video standard

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Embodiment Construction

[0023] The video encoding method meeting the multi-viewpoint video standard proposed by the present invention comprises the following steps:

[0024] (1) N cameras for collecting video are set, and the numbers of the adjacent cameras are connected, and each video frame in the N road videos collected is numbered according to the number of the camera and the time of collection, and the number is The number of the t-th video frame captured by the camera of i is t×N+i, where i=0, 1, 2...N-1, t is the sequence number of the video frame, t=0, 1, 2... ...;

[0025] (2) According to the multi-view video standard, set the parameters of multi-view video encoding for the videos collected by N cameras, which parameters include the number of cameras and the number of each video frame in the N road videos collected during encoding. For the referenced video frame, the number of the video frame referenced by each video frame during encoding is recorded as additional information of each video...

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Abstract

The invention relates to a video coding method in accordance with multi-view video standard, belonging to the technical field of video coding. In the method, a multi-path video sequence shot by a plurality of cameras is converted into video adapting to coding of an H.264 coder; the reference relationship in accordance wit multi-view video in code stream generation is ensured by restricting the reference relationship when the H.264 is coded; and the code stream outputted by the H.264 coder is modified to obtain a code stream in accordance with the multi-view video standard. The method realizescoding of multi-view video by utilizing mature H.264 coder, reduces cost for developing multi-view video coding, and realizes high efficiency video coding by utilizing known optimization results and hardware coding results in the H.264 coding.

Description

technical field [0001] The invention relates to a video coding method conforming to the multi-viewpoint video standard, in particular to a video coding method based on an H.264 coder and conforming to the multi-viewpoint video coding standard, and belongs to the technical field of video coding. Background technique [0002] Multi-viewpoint video is a new generation of interactive media, which brings an immersive three-dimensional experience to users. Users can freely choose the viewpoint they watch and switch between viewpoints. The essence of multi-viewpoint video is to shoot a scene from multiple viewpoints, encode the image sequences captured at multiple locations and transmit them to the user. At the user end, the original video of each viewpoint can be restored by decoding the video. , through the synthesis of viewpoints to generate more viewpoints, allowing users to obtain a three-dimensional experience without wearing glasses. [0003] Multi-viewpoint video coding is...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N7/26H04N13/00H04N19/42H04N19/597
Inventor 孙立峰胡伟栋杨士强李毅罗翰
Owner TSINGHUA UNIV
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