Inter-view prediction method, encoder and decoder of multi-viewpoint video technology

A technology of multi-viewpoint video and inter-view prediction, applied in the field of multi-viewpoint video, can solve the problem of low accuracy of inter-view prediction, achieve the effect of improving accuracy and ensuring correctness

Inactive Publication Date: 2008-07-16
SNAPTRACK
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Problems solved by technology

[0004] If inter-view prediction is performed on the current macroblock, the reference vector obtained by the motion vector predictor in the single-point video coding technology is largely a time-axis motion vector, and the time-axis motion vector and the disparity vector between views are in space There is a big difference in the relationship, so when performing inter-view prediction based on the reference vector obtained by the motion vector predictor, the accuracy of inter-view prediction is very low

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  • Inter-view prediction method, encoder and decoder of multi-viewpoint video technology

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[0024] In a specific embodiment of the present invention, both the encoding end and the decoding end use the disparity vector as a reference vector to perform inter-view prediction on the encoded macroblock, and the encoder transmits the above disparity vector information to the decoding end, so that the decoding end can know that the encoding end performs visual prediction. The reference vector used for inter-prediction ensures the accuracy of encoding and decoding, improves the accuracy of inter-view prediction, and reduces the amount of coding.

[0025] The encoding end may encode and transmit the disparity vector information in image-level auxiliary information, such as image header information or slice header information. In addition, the above disparity vector information may be the disparity vector itself, or may be depth information. When the disparity vector information is depth information, after converting the above-mentioned disparity vector as a reference vector i...

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Abstract

The invention discloses an inter-view predicting method in the multi-view points video technique, comprising the following steps that: a coding terminal takes a parallax vector as a reference vector to inter-view predict a macroblock to be coded and the parallax vector information of the macroblock to be coded is transmitted to a decoding terminal; the decoding terminal obtains the parallax vector information, the inter-view prediction of the macroblock by the reference vector is determined according to the parallax vector information. The invention also discloses a multi-view points video coder and a multi-view points video decoder.

Description

technical field [0001] The present invention relates to the field of multi-view video technology, in particular to an inter-view prediction method in multi-view video technology, a multi-view video encoder and a multi-view video decoder. Background technique [0002] With the development of multimedia communication technology, people are no longer satisfied with traditional fixed-viewpoint vision and 2D plane vision, and there are demands for free-viewpoint video and 3D video in many application fields such as entertainment, education, tourism and surgery. For example, Free Viewpoint TV (FTV), which allows the viewer to choose a viewing angle, and 3DTV, which plays videos from different viewing angles for viewers in different positions. The above applications all require the use of multiple cameras to simultaneously acquire video signals of the same scene at different spatial positions and different angles, and effectively compress, encode and transmit a group of obtained vi...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/32H04N7/26H04N19/176H04N19/42H04N19/503
Inventor 曾鹏鑫林四新胡昌启谢清鹏周建同熊联欢
Owner SNAPTRACK
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