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Multi-mode multi-viewpoint video signal code compression method

A technology for multi-view video and signal coding, which is applied in the field of multi-view video signal coding and compression, can solve the problems of difficulty in obtaining partial decoding and rendering compression effects, and cannot be well adapted to multi-view video signal compression, so as to improve random access performance. , The effect of ensuring encoding compression performance and reducing computational complexity

Inactive Publication Date: 2007-02-14
上海斯派克斯科技有限公司
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Problems solved by technology

The complex temporal and inter-view content correlation characteristics of multi-view video signals make the existing multi-view video coding schemes with a single structure unable to adapt well to the compression of multi-view video signals with complex and changeable content correlation characteristics. Obtain an effective compression effect for comprehensive performance (encoding compression efficiency, random access, system resource consumption, partial decoding and rendering, encoding delay, etc.), which is also an important problem common to existing multi-view video encoding methods

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  • Multi-mode multi-viewpoint video signal code compression method
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  • Multi-mode multi-viewpoint video signal code compression method

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[0034] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0035] Here, take a representative 5×7 image group structure as an example (such as Figure 3a , Figure 3b and Figure 3c As shown, each image group has 5 viewpoints, 7 moments, and 35 frames in total), and the 4 functional modules of the multi-mode multi-viewpoint video encoder and their cooperative working methods are described in detail.

[0036] 1) Multi-view video predictive coding module

[0037] This module is responsible for encoding and compressing multi-viewpoint video signals, that is, using a candidate predictive coding mode dynamically selected by the prediction mode selection module to encode the current multi-viewpoint video signal.

[0038] According to the temporal correlation and inter-view correlation of multi-view video signals, the candidate multi-view video predictive coding modes are divided into three categories. Th...

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Abstract

The invention discloses a video encoding method with multi-mode and multi-view. According to the analysis of the time correlation for the multi-view video signals and view correlation , as well as the comprehensive characters such as the compressing efficiency, complexity of encoding, random access performance and coding delay demanded by the system, the method adaptively dynamic-chooses the predictive coding mode which meets the features and the comprehensive encoding requirements of the current signals to encode them, in order to replace the method with single mode and complex calculation that forecasts by the union of time and space, and decrease the calculation complexity of compressing the signal coding.

Description

technical field [0001] The invention relates to a method for encoding and compressing multi-viewpoint video signals, in particular to a method for encoding and compressing multi-mode multi-viewpoint video signals based on the analysis of time correlation and inter-viewpoint correlation of multi-viewpoint video signals. Background technique [0002] 3DAV (three-dimensional audio and video) is the development direction of the new generation of audio and video technology. As the core technology in 3DAV applications such as FTV (Free Viewpoint Television) and 3DTV (3D Television), multi-viewpoint video coding technology aims to solve problems such as compression, interaction, storage and transmission of 3D interactive video. The multi-viewpoint video signal is a group of video signals obtained by shooting the actual scene by the camera array. It can provide video image information from different angles of the shooting scene. Using one or more viewpoint information, the informati...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/32H04N19/597
Inventor 蒋刚毅郁梅张云
Owner 上海斯派克斯科技有限公司
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