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Motion estimation method, device, electronic device and readable storage medium

A motion estimation and motion vector technology, applied in the field of communication, can solve the problems of redundant search points, easy to fall into local optimum, etc., to achieve the effect of improving efficiency and effectiveness, reducing computational complexity and coding time

Active Publication Date: 2022-03-29
VIVO MOBILE COMM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The current fast search method has a large number of candidate search points, and there is still a large redundancy between the search points, and it is easy to fall into a local optimum during the search and matching process.

Method used

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  • Motion estimation method, device, electronic device and readable storage medium
  • Motion estimation method, device, electronic device and readable storage medium
  • Motion estimation method, device, electronic device and readable storage medium

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Embodiment Construction

[0043] The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0044] The terms "first", "second" and the like in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific sequence or sequence. It should be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application can be practiced in sequences other than those illustrated or described herein, and that references to "first," "sec...

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Abstract

Embodiments of the present application provide a motion estimation method, device, electronic equipment, and readable storage medium, which belong to the field of communication technologies. The method includes: according to the motion vector of the previous frame of the target position in the target macroblock, determining the first search range for asymmetric cross search; according to the motion vector of the previous frame of the target position in the target macroblock The vector and the motion vectors of the first two frames of the target position in the target macroblock determine the second search range for the extended multi-level hexagonal grid point search; the embodiment of the present application selects the search range in the motion estimation process of video coding It has been optimized to determine the optimal matching block and optimal motion vector more accurately and quickly, avoiding the search from falling into a local optimum, and reducing computational complexity and encoding time, improving the efficiency and effectiveness of video encoding .

Description

technical field [0001] The embodiments of the present application relate to the field of communication technologies, and in particular to a motion estimation method, device, electronic equipment, and readable storage medium. Background technique [0002] Video coding is based on the high correlation of video signals and the visual characteristics of the human eye. Through appropriate coding methods, the redundancy caused by various correlations and human eye characteristics is eliminated to compress video signals and reduce the transmission bit rate. the goal of. The correlation of video signals can be divided into temporal correlation and spatial correlation. Spatial correlation refers to the similarity between adjacent pixels in the same image, which is mainly eliminated by intra-frame prediction (Intra-Frame Prediction) coding; temporal correlation refers to the similarity between adjacent pixels in the image sequence. The similarity between images is mainly eliminated ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N19/139H04N19/176
CPCH04N19/139H04N19/176H04N19/57H04N19/533H04N19/56H04N19/513
Inventor 张勇
Owner VIVO MOBILE COMM CO LTD
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