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Method for determining motion vector predicted value and related device

A motion vector prediction and motion vector technology, applied in the field of image encoding and decoding, to reduce the amount of encoding and decoding operations, reduce the transmission rate and encoding time.

Active Publication Date: 2019-01-15
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, with the emergence of ever-evolving video services and the increase in user needs for video transmission, how to further reduce the time of encoding and decoding, reduce the bit rate, and improve the efficiency of video transmission is still a challenge for current codec technology

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  • Method for determining motion vector predicted value and related device
  • Method for determining motion vector predicted value and related device

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Embodiment Construction

[0044] Embodiments of the present invention will be described below with reference to the drawings in the embodiments of the present invention.

[0045] First introduce the system framework applied by the embodiment of the present invention, first refer to figure 1 , figure 1 It is a schematic block diagram of a video codec system 10 provided by an embodiment of the present invention. Such as figure 1 As shown, a video codec system 10 includes a source device 12 and a destination device 14 . Source device 12 generates encoded video data. Accordingly, source device 12 may be referred to as a video encoding device or video encoding apparatus. Destination device 14 may decode the encoded video data generated by source device 12 . Accordingly, destination device 14 may be referred to as a video decoding device or video decoding apparatus. Source device 12 and destination device 14 may be examples of video codec devices or video codec apparatuses. Source device 12 and destin...

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Abstract

The embodiment of the present invention discloses a method for determining a motion vector predicted value and a related device. The method includes: acquiring the motion vector precision of a block to be processed; acquiring at least one first predicted motion vector of the block to be processed; determining a target predicted motion vector according to the motion vector precision and the at least one first predicted motion vector, wherein the target predicted motion vector has the motion vector precision; after the target predicted motion vector is obtained, using the target predicted motionvector as a decoding-side motion vector to derive a DMVD motion vector predicted value to be inserted into a candidate motion vector predicted value list, wherein the candidate motion vector predicted value list also has the motion vector precision. The method in the embodiment of the invention can further shorten the encoding and decoding time, reduces a code rate, and increases video transmission efficiency.

Description

technical field [0001] The present invention relates to the technical field of image coding and decoding, in particular to a method for determining a motion vector prediction value and related equipment. Background technique [0002] Predictive coding is a basic coding tool in video compression, and common predictive coding is inter-frame prediction and intra-frame prediction. Inter-frame prediction refers to the use of video time domain correlation to predict the pixels of the current image using the previously encoded image pixels to achieve the purpose of effectively removing video time domain redundancy. The basic principle is: based on the video sequence usually has a strong Temporal correlation, for each current coding block of the current frame, find a best matching reference block in the previous coded image, and use the pixel value of the pixel in the reference block as the pixel in the current coding block The predicted value of the pixel value, and obtain the mot...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N19/513H04N19/523H04N19/57
CPCH04N19/513H04N19/523H04N19/57H04N19/00
Inventor 徐巍炜陈焕浜赵寅刘杉
Owner HUAWEI TECH CO LTD
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