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A code rate control method oriented to multi-view point video

A multi-view video and bit rate control technology, applied in the field of information dissemination, can solve the problems of not very rigorous theoretical derivation, difficult bit rate prediction, and lack of visual effects of video bit stream images.

Inactive Publication Date: 2009-11-18
ZHEJIANG WANLI UNIV
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AI Technical Summary

Problems solved by technology

The theoretical derivation of this model is not very rigorous, and there will be deficiencies in practical applications. It is difficult to make accurate bit rate prediction, and the video bit stream image output by the encoder lacks the visual effect of plane depth and facade height.

Method used

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  • A code rate control method oriented to multi-view point video
  • A code rate control method oriented to multi-view point video
  • A code rate control method oriented to multi-view point video

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Embodiment Construction

[0097] The technical solution of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0098] For a multi-view video encoder, its input original video sequence contains n v In order to fully remove various redundant information, its framework is a multi-view video rate control based on the combination of disparity estimation and compensation prediction technology (DCP) and motion estimation and compensation prediction technology (MCP). encoder. In terms of video structure, the original video sequence consists of n v =Multi-viewpoint video group of pictures (MGOP) layer pictures formed by regular combination of video image sets shot at the same time by n+1 viewpoints.

[0099] figure 2 is the general structure of the two-viewpoint video encoder of the embodiment of the present invention, n v =2, n=1, its framework is an encoder based on the combination of disparity estimation and compensation prediction technology ...

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Abstract

The present invention provides a code rate control method facial to video having multiple viewports, the aim of the effect code rate control inder the frame rate condition in the multiple viewport video code based on the previous determined code rate is achieved by improving the secondary rate-distortion model of the traditional video code, and adopting code rate control mode and picture constitution having two models and frame layer secondary code rate control method. Contrast to the traditional second rate distortion model, the improved rate distortion model of the invention has higher accuracy, effectively processing code rate forecast, the given video code rate control method is simply, having smaller calculated amount, maneuverability for processing effect code control in the multiple viewports video code. The code rate control method facial to video having multiple viewports of the invention is used for video communication field such as three-dimensional television, vectorgraph, machine vision, telemedicine.

Description

technical field [0001] The invention belongs to the technical field of information dissemination, and relates to a code rate control method for multi-viewpoint video. In particular, it relates to a multi-viewpoint video code rate control method by improving the rate-distortion model, adopting a double-model code rate control mode, and using a two-level code rate control strategy of a group of pictures layer and a frame layer. Background technique [0002] Multi-viewpoint video has multiple video signals. By utilizing the good time correlation and spatial correlation between multiple video signals, it is possible to show people high-quality video that satisfies the stereoscopic feeling and also meets the requirements of interactive operation. Require. Therefore, multi-view video is considered to be an important development direction of video technology in the future, and it has broad application prospects in the fields of 3D TV, 3D film, machine vision, and telemedicine in t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N7/26H04N7/32H04N19/147
Inventor 朱仲杰王阳梁丰
Owner ZHEJIANG WANLI UNIV
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