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Interactive multi-view point video encoding method

A multi-viewpoint video and coding method technology, applied in the field of video processing, can solve the problems of not being able to better realize efficient interaction between the user end and the server end, reducing multi-viewpoint video network transmission, etc.

Inactive Publication Date: 2009-04-08
上海贵知知识产权服务有限公司
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  • Abstract
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AI Technical Summary

Problems solved by technology

For the multi-view video coding in the interactive multi-view video system, in addition to improving the coding efficiency and reducing the network transmission of multi-view video by changing the prediction structure, the brightness compensation method is also recommended
The brightness compensation method compensates the parallax estimation and the prediction residual by weighting the prediction of the coded macroblock, thereby improving the coding compression efficiency. Realize efficient interaction between client and server

Method used

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  • Interactive multi-view point video encoding method

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Embodiment Construction

[0044] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0045] Such as image 3 As shown, an interactive multi-view video coding method, the specific steps are as follows:

[0046] (1), first, according to the set coding prediction structure, for the multi-viewpoint video captured at the same time by the multi-viewpoint camera system with n+1 cameras, in the time domain, it has 1 I frame and multiple P The frame group of the frame is the encoding unit for encoding processing to obtain the encoded code stream including the motion vector.

[0047] The data format of the captured multi-viewpoint video is YUV (4:2:0), that is, the color space of the multi-viewpoint video data is YUV, and the first component of the three components of the YUV color space is the luminance component, which is denoted as Y, and the first component is denoted as Y. 2 components are denoted as U for the first chrominance c...

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Abstract

The invention discloses an interactive multi-view video encoding method. By discarding the chromaticity component of all P frames in the encoding process, the encoding compression efficiency and the encoding speed of the multi-view video are increased, and the transmission amount of the encoding stream which is transmitted by a server to a client end is reduced; colorization operation is carried out on all the P frames by using motion vector information of adjacent frames, thus reconstructing the chromaticity component information of the P frames accurately; at the client end, multiplicative error and additive error are calculated by using parallax vector information, thus realizing that the color of the image after decoding and reconstructing is corrected by using the multiplicative error and the additive error, ensuring color consistency among the view points and realizing the application of the interactive multi-view video.

Description

technical field [0001] The invention relates to a video processing method, in particular to an interactive multi-viewpoint video encoding method. Background technique [0002] The interactive multi-viewpoint video system can provide users with multiple viewing angles of video content. Users can choose viewing angles according to their personal preferences, and change the viewing angles at will during the viewing process. Therefore, for an interactive multi-view video system, its basic goal is to effectively realize the viewpoint interaction between the user end and the server end. Typically, interactive multi-view video systems such as figure 1 As shown, it consists of the following parts: video capture, preprocessing, multi-view video encoder, multi-view video decoder, view rendering and display. Video capture is usually achieved by a multi-view camera system with n+1 cameras (or video cameras), figure 2 A schematic diagram of multi-view camera system imaging is given, ...

Claims

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Application Information

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IPC IPC(8): H04N7/26H04N19/176H04N19/186H04N19/597
Inventor 邵枫郁梅蒋刚毅
Owner 上海贵知知识产权服务有限公司
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