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Multi-view video coding method oriented for interactive application

A technology of multi-view video and coding method, which is applied in the field of coding and compression of multi-view video signals, can solve the problem of not being able to obtain the best motion matching information of coded macroblocks, and achieves support for viewpoint switching, optimization of random access performance, and high compression efficiency. Effect

Inactive Publication Date: 2010-10-20
NANJING UNIV OF POSTS & TELECOMM
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  • Application Information

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Problems solved by technology

However, sometimes the best motion matching information of the current coded macroblock cannot be obtained through the global disparity

Method used

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  • Multi-view video coding method oriented for interactive application
  • Multi-view video coding method oriented for interactive application
  • Multi-view video coding method oriented for interactive application

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Embodiment Construction

[0037] The present invention will be further described in detail below in conjunction with the embodiments of the drawings. Here, an 8×8 multi-view image group structure is taken as an example (e.g. image 3 As shown, each image group has a total of 8 viewpoints, 8 moments, and a total of 64 frames).

[0038] Reference figure 1 In multi-view video coding, a group of videos obtained by a multi-view acquisition system with N cameras shooting the same scene from different angles, namely N original viewpoints; N original viewpoint videos are obtained through a multi-view video encoding and decoding system. Way to restore viewpoint. In a multi-view video encoding and decoding system, the transmitting end uses a multi-view video encoder to encode and compress data while ensuring information quality and transmission security. After being transmitted to the receiving end, it is decoded by the multi-view video decoder.

[0039] Reference image 3 , A schematic diagram of a multi-view video...

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Abstract

The invention relates to the technical field of multi-view video coding, and discloses a multi-view video coding method oriented for interactive application. In the method, in order to improve the interactive performance of a multi-view video, the forecasting relationship among key frame image viewpoints is firstly corrected, parallax compensation prediction is only applied to key frame images, and motion compensation prediction is only carried out on non-key frame images. In addition, the multi-view video has high correlation on video content, and the motion information of reference images among the viewpoints also has high dependence. According to this principle, the invention further provides an adaptive motion vector refine algorithm with a motion information jumping mode which is used for optimizing the motion compensation prediction performance of the non-key frame images. Under the premise of guaranteeing high compression efficiency, the method optimizes the random access performance of the multi-view video and supports rapid viewpoint switching, thus improving the interactive performance of the multi-view video.

Description

Technical field [0001] The present invention relates to a coding compression method for multi-viewpoint video signals, and in particular to a video signal compression method for interactive applications based on skip coding based on motion information. Background technique [0002] Multi-viewpoint video is a research hotspot in the current multimedia field. As the core technology in three-dimensional audio and video applications such as FTV (Free Viewpoint Television) and 3DTV (Three-dimensional Television), multi-viewpoint video technology aims to solve the problems of compression, interaction, storage and transmission of 3D interactive video. The multi-viewpoint video signal is a group of video signals obtained by the camera array shooting the actual scene. It can provide video image information of different angles of the shooting scene. One or more of the video information can be used to synthesize the information of any viewpoint, so that the user You can arbitrarily change ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/26H04N7/32H04N19/597
Inventor 刘峰郑海棠
Owner NANJING UNIV OF POSTS & TELECOMM