Candidate motion vector list acquisition method and device and codec

A technology of candidate motion vectors and acquisition methods, applied in the field of video encoding and decoding, can solve the problems of high complexity, achieve the effects of reducing complexity, improving accuracy and encoding and decoding efficiency, and improving encoding and decoding efficiency

Pending Publication Date: 2020-11-17
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in the process of obtaining the candidate motion vector list in the prior art, the MV of the adjacent block needs to be processed again before being added to the candidate motion vector list, and the complexity is relatively high.

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  • Candidate motion vector list acquisition method and device and codec
  • Candidate motion vector list acquisition method and device and codec
  • Candidate motion vector list acquisition method and device and codec

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Embodiment Construction

[0056] Embodiments of the present application are described below with reference to the drawings in the embodiments of the present application. In the following description, reference is made to the accompanying drawings which form a part of this disclosure and which show by way of illustration specific aspects of embodiments of the application or in which embodiments of the application may be used. It should be understood that the embodiments of the present application may be used in other aspects, and may include structural or logical changes not depicted in the drawings. Accordingly, the following detailed description should not be read in a limiting sense, and the scope of the application is defined by the appended claims. For example, it should be understood that a disclosure in connection with a described method is equally applicable to a corresponding device or system for performing the method, and vice versa. For example, if one or more specific method steps are descr...

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Abstract

The invention discloses a candidate motion vector list acquisition method, a candidate motion vector list acquisition device and a codec. The candidate motion vector list acquisition method comprisesthe following steps: when a first candidate image block is encoded / decoded and an inter-frame prediction mode is adopted, judging whether a reference image of the first candidate image block is the same as a reference image of a current block or not; according to the judgment, creating a candidate motion vector list of the current block, wherein when the reference image of the first candidate image block is the same as the reference image of the current block, the candidate motion vector list comprises a motion vector MV of the first candidate image block; wherein the candidate motion vector list does not include the MV of the first candidate image block when the reference image of the first candidate image block is different from the reference image of the current block. The acquisition process of the candidate motion vector list in an inter-frame prediction mode can be simplified, complexity of the motion information derivation process is reduced, and the encoding and decoding efficiency is improved.

Description

technical field [0001] The present application relates to the field of video codec, and in particular to a method, device and codec for obtaining a candidate motion vector list. Background technique [0002] Digital video capabilities can be incorporated into a wide variety of devices, including digital television, digital broadcast systems, wireless broadcast systems, personal digital assistants (PDAs), laptop or desktop computers, tablet computers, electronic book readers, Digital cameras, digital recording devices, digital media players, video game devices, video game consoles, cellular or satellite radiotelephones (so-called "smart phones"), video teleconferencing devices, video streaming devices and the like . Digital video devices implement video compression techniques such as those defined in MPEG-2, MPEG-4, ITU-T H.263, ITU-T H.264 / MPEG-4 Part 10 Advanced Video Coding (AVC), Video compression techniques described in the video coding standard H.265 / High Efficiency V...

Claims

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Application Information

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IPC IPC(8): H04N19/513H04N19/176H04N19/52H04N19/85
CPCH04N19/513H04N21/4402H04N21/2343H04N19/52H04N19/567H04N19/56H04N19/85H04N19/139H04N19/176H04N19/105H04N19/159H04N19/30
Inventor 陈焕浜杨海涛张恋
Owner HUAWEI TECH CO LTD
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