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Method for encoding/decoding image signal, and device for same

A video decoding and video coding technology, which is applied in the direction of digital video signal modification, image communication, electrical components, etc., can solve the problem of increasing data volume

Active Publication Date: 2021-09-10
GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The biggest problem with high-definition video services is that the amount of data has increased significantly. In order to solve this problem, research to increase the video compression rate is actively being carried out

Method used

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  • Method for encoding/decoding image signal, and device for same
  • Method for encoding/decoding image signal, and device for same
  • Method for encoding/decoding image signal, and device for same

Examples

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Embodiment Construction

[0062] Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

[0063] Video encoding and decoding are performed in units of blocks. For example, encoding / decoding processing such as transformation, quantization, prediction, loop filtering, or reconstruction may be performed on a coding block, a transform block, or a prediction block.

[0064] Hereinafter, a block to be encoded / decoded is referred to as a "current block". For example, a current block may represent an encoded block, a transformed block or a predicted block, depending on the current encoding / decoding process step.

[0065] Also, the term 'unit' used in this specification denotes a basic unit for performing a specific encoding / decoding process, and 'block' may be understood to mean a sample array of a predetermined size. Unless otherwise stated, "block" and "unit" are used interchangeably. For example, in embodiments described later, a coding block and a c...

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PUM

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Abstract

Disclosed are a method for encoding / decoding an image signal, and device for the same. An image decoding method, according to the present invention, comprises the steps of: determining whether a merge offset vector encoding method is applicable to a current block; generating a merge candidate list for the current block; specifying a merge candidate for the current block on the basis of the merge candidate list; and deriving a motion vector for the current block on the basis of the merge candidate.

Description

technical field [0001] The present invention relates to a video signal encoding / decoding method and an apparatus for said method. Background technique [0002] With the trend of larger and larger display panels, video services with higher image quality are gradually required. The biggest problem with high-definition video services is that the amount of data has increased significantly. In order to solve this problem, research to increase the video compression rate is actively being carried out. As a representative example, in 2009, the Motion Picture Experts Group (MPEG) and the Video Coding Experts Group (Video Coding Experts Group) of the International Telecommunication Union-Telecommunications (ITU-T), VCEG) established JCT-VC (Joint Collaborative Team on Video Coding). JCT-VC proposed the video compression standard HEVC (High Efficiency Video Coding) and was approved on January 25, 2013. Its compression performance is about twice that of H.264 / AVC. With the rapid deve...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N19/107H04N19/176H04N19/20H04N19/43H04N19/44H04N19/52H04N19/625
CPCH04N19/107H04N19/176H04N19/20H04N19/625H04N19/52H04N19/44H04N19/43H04N19/70H04N19/513H04N19/105H04N19/46H04N19/157H04N19/109H04N19/122H04N19/119H04N19/51H04N19/117H04N19/503
Inventor 李培根
Owner GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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