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Image signal encoding/decoding method and apparatus therefor

一种编码、最下方的技术，应用在图像通信、数字视频信号修改、电气元件等方向，能够解决HEVC性能局限性等问题，达到提高编码/解码效率的效果

Pending Publication Date: 2021-07-23
XRIS CORP
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Problems solved by technology

However, with the rapid development of high-definition video services, the performance of HEVC gradually shows its limitations

Method used

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  • Image signal encoding/decoding method and apparatus therefor
  • Image signal encoding/decoding method and apparatus therefor
  • Image signal encoding/decoding method and apparatus therefor

Examples

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Embodiment Construction

[0061] Hereinafter, embodiments of the present disclosure will be described in detail with reference to the accompanying drawings.

[0062] Image encoding and decoding are performed on a block basis. In an example, encoding / decoding processes such as transformation, quantization, prediction, in-loop filtering, reconstruction, etc. may be performed on an encoded block, a transformed block, or a predicted block.

[0063] Hereinafter, the encoding / decoding target block is referred to as "current block". In an example, the current block may represent an encoded block, a transformed block, or a predicted block according to a current encoding / decoding process.

[0064] Also, the term 'unit' used in this specification indicates a basic unit for performing a specific encoding / decoding process, and 'block' may be understood as indicating a sample array having a predetermined size. Unless otherwise stated, "block" and "unit" are used interchangeably. In an example, a coding block and...

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Abstract

An image signal decoding method according to an embodiment of the present disclosure comprises the steps of: segmenting a current picture into a plurality of tiles; decoding segmentation information indicating a slice type, wherein the segmentation information indicates whether or not a square-shaped slice is applied; decoding width information and height information relating to a first slice; decoding tile index differential value information relating to the first slice; and determining an index of an upper-left tile of a second slice on the basis of the differential value information.

Description

technical field [0001] The present disclosure relates to a video signal encoding / decoding method and device thereof. Background technique [0002] As display panels become larger, higher quality video services are required. The biggest problem with HD video services is the huge increase in data volume. In order to solve the above problems, researches on increasing the video compression rate are actively being conducted. As a representative example, the Joint Working Group on Video Coding (JCT-VC) was established in 2009 by the Moving Picture Experts Group (MPEG) and the Video Coding Experts Group (VCEG) under the International Telecommunication Union Telecommunication Standardization Sector (ITU-T). JCT-VC proposed a video compression standard: High Efficiency Video Coding (HEVC), whose compression performance is about twice that of H.264 / AVC, and was approved as a standard on January 25, 2013. However, with the rapid development of high-definition video services, the per...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N19/436H04N19/176
CPCH04N19/436H04N19/176H04N19/70H04N19/96H04N19/119H04N19/174H04N19/50H04N19/46
Inventor 李培根
Owner XRIS CORP
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