Method for encoding and decoding video based on movement dancing mode, and encoder and decoder thereof

Abstract

The invention provides a multi-viewpoint video coding method on the basis of movement jump mode, comprising the steps as follows: a block less than 16*16 pixel is used as a basic unit so as to derive the pointing direction of the current image corresponding to the disparity vector of the viewpoint reference image, and to determine the corresponding reference block of the current micro-block to be coded in the viewpoint reference image; in reference to the determined movement information of the corresponding reference block in the micro-block, the current micro-block to be coded is coded. Correspondingly, the invention also provides a multi-viewpoint video coding method based on the movement jump mode and a corresponding codec. The method and the codec can more accurately gain the micro-block movement information of the current coding micro-block at the corresponding position in the viewpoint reference image, thus improving the coding efficiency of the movement jump mode.

Description

technical field [0001] The present invention relates to the technical field of video coding and decoding, and more particularly relates to a video coding and decoding method based on a motion skip mode and a codec thereof. Background technique [0002] With the development of multimedia communication technology, people are no longer satisfied with the traditional fixed-viewpoint vision and 2D plane vision, and there is a demand for free-viewpoint video and 3D video in many application fields such as entertainment, education, tourism and surgery. For example, free view-point television (FTV, Free view-point Television) that can be selected by the viewer, and stereoscopic vision television (3DTV, 3 Dimensional Television) that plays videos with different viewing angles for viewers in different positions. The above-mentioned applications all require the use of multiple cameras to acquire video signals of the same scene at different spatial positions and angles at the same time,...

AI Technical Summary

Problems solved by technology

[0016] However, whether it is the existing MSM technology or the improved MSM technology, the macroblock of 16×16 pixels is used as the basic unit to derive GDV, and to derive the macroblock motion information of the corresponding position in the reference image, so this There are problems that the global disparity vector GDV between the current encoded image and the inter-view reference image cannot be accurately obtained, and the macroblock motion information of the corresponding position of the currently encoded macroblock in the inter-view reference image cannot be accurately obtained

[0017] In addition, due to the low accuracy of GDV, the use of GDV cannot accurately find the corresponding macroblock in the inter-view reference image of each macroblock in the current coded image, so the macroblock obtained from the corresponding macroblock pointed to by GDV The accuracy of motion information is relatively low

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