Motion vector predicted value list construction method and video encoding and decoding method and device

Abstract

The embodiment of the invention discloses a motion vector predicted value list construction method and a video encoding and decoding method and related devices. The motion vector predicted value list construction method comprises the steps: obtaining N motion vector predicted values corresponding to a first image block; and constructing a motion vector predicted value list corresponding to the first image block, wherein N motion vector predicted values are recorded in the motion vector predicted value list and include a zero value motion vector predicted value, a time domain motion vector predicted value and M space motion vector predicted values, the zero value motion vector predicted value and the M space motion vector predicted values are positioned in front of the time domain motion vector predicted value in the motion vector predicted value list, the reference image pointed by the zero value motion vector predicted value comes from an image layer which is different from the image layer where the first image block is located, the index number corresponding to the earlier position in the motion vector predicted value list is smaller. According to the scheme provided by the embodiment of the invention, the video compression encoding performance is favorably promoted.

Description

technical field [0001] The invention relates to the technical field of image processing, in particular to a method for constructing a motion vector predictor list and a video encoding and decoding method and device. Background technique [0002] With the development of photoelectric acquisition technology and the growing demand for high-definition digital video, the amount of video data is increasing. The limited heterogeneous transmission bandwidth and diversified video applications continue to put forward higher requirements for video coding efficiency. The formulation of the High Efficient Video Coding (HEVC) standard was started due to the need. [0003] The basic principle of video coding and compression is to use the correlation between space domain, time domain and code words to remove redundancy as much as possible. The current popular practice is to use a block-based hybrid video coding framework to achieve video coding compression through steps such as prediction ...

AI Technical Summary

Problems solved by technology

Research and practice have found that the existing technology cannot well adapt to the characteristics of SVC coding, which limits the improvement of compression coding performance

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