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Multi-mode multi-viewpoint video signal code compression method

A multi-viewpoint video and signal coding technology, which is applied in the field of coding and compression of multi-viewpoint video signals, can solve the problems that it is difficult to obtain partial decoding and drawing compression effects, and cannot be well adapted to multi-viewpoint video signal compression, etc., so as to improve random access performance , Guaranteed encoding compression performance and reduced computational complexity

Inactive Publication Date: 2008-08-27
上海斯派克斯科技有限公司
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AI Technical Summary

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

Method used

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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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Embodiment Construction

[0034] The present invention will be further described in detail below with reference to the embodiments of the accompanying drawings.

[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 picture group has 5 viewpoints, 7 moments, and 35 frames in total), and the 4 functional modules of the multi-mode multi-view 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 the multi-view video signal, that is, encoding the current multi-view video signal using a certain candidate predictive coding mode dynamically selected by the prediction mode selection module.

[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. The...

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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 present invention relates to a coding and compression method for multi-view video signals, in particular to a multi-mode multi-view video signal coding and compression method based on the analysis of time correlation and inter-view correlation of multi-view video signals. Background technique [0002] 3DAV (three-dimensional audio and video) is the development direction of a new generation of audio and video technology. As the core technology in 3DAV applications such as FTV (Free Viewpoint Television) and 3DTV (Three-Dimensional Television), multi-view video coding technology aims to solve the problems of compression, interaction, storage and transmission of 3D interactive video. The multi-view 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 of the viewpoint information, the information of any vi...

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Application Information

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Patent Type & Authority Patents(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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