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Method and apparatus for decoder-side motion vector refinement in video coding

A motion vector, video coding technology, applied in the field of video coding, decoding and compression

Active Publication Date: 2022-05-17
BEIJING DAJIA INTERNET INFORMATION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

There is an ongoing challenge in how to more efficiently encode / decode video data while maintaining the image quality of the decoded video data

Method used

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  • Method and apparatus for decoder-side motion vector refinement in video coding
  • Method and apparatus for decoder-side motion vector refinement in video coding
  • Method and apparatus for decoder-side motion vector refinement in video coding

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Embodiment Construction

[0022] Reference will now be made in detail to the detailed description, examples of which are illustrated in the accompanying drawings. In the following detailed description, numerous non-limiting specific details are set forth to facilitate an understanding of the subject matter presented herein. However, it will be apparent to those of ordinary skill in the art that various alternatives may be used. For example, it will be apparent to those of ordinary skill in the art that the subject matter presented herein can be implemented on many types of electronic devices with digital video capabilities.

[0023] Reference throughout this specification to "one embodiment," "an embodiment," "example," "some embodiments," "some examples," or similar language means that the particular feature, structure, or characteristic being described is included in the In at least one embodiment or example. A feature, structure, element, or characteristic described in connection with one or some ...

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Abstract

A method for video encoding is provided. The method comprises: segmenting a video frame into a plurality of blocks; deriving an initial motion vector (MV) for a current block of the plurality of blocks; deriving a plurality of MV candidates for decoder-side motion vector refinement (DMVR); determining cost values of the initial MV and each MV candidate; obtaining an updated cost value for both the initial MV and the MV candidate by adjusting at least one of the cost values to facilitate the initial MV; and deriving a refined MV based on the updated cost values of both the initial MV and the MV candidate.

Description

[0001] This application is a divisional application of the invention application with the application number 202080041146.4, the application date is June 17, 2020, and the title is "Method and device for decoder-side motion vector refinement in video codec". technical field [0002] The present application relates generally to video codecs and compression, and in particular, but not limited to, methods and apparatus for decoder-side motion vector refinement (DMVR) in video codecs. Background technique [0003] Various electronic devices such as digital televisions, laptop or desktop computers, tablet computers, digital cameras, digital recording equipment, digital media players, video game consoles, smartphones, video teleconferencing equipment, video streaming equipment, etc. Digital video is supported. Electronic devices transmit, receive, encode, decode and / or store digital video data by performing video compression / decompression. Digital video equipment implementing vid...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N19/139H04N19/176
CPCH04N19/139H04N19/176H04N19/513H04N19/44H04N19/523H04N19/567H04N19/521H04N19/105H04N19/119H04N19/132H04N19/189
Inventor 陈漪纹修晓宇马宗全王祥林
Owner BEIJING DAJIA INTERNET INFORMATION TECH CO LTD
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