Video decoding method and device, video encoding method and device, equipment and storage medium

A video decoding and encoding technology, applied in the field of video encoding and decoding, can solve the problems of irregular pixel strings and low decoding efficiency.

Active Publication Date: 2020-10-30
TENCENT TECH (SHENZHEN) CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In related technologies, there are problems of irregular pixel strings and low decoding efficiency

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  • Video decoding method and device, video encoding method and device, equipment and storage medium
  • Video decoding method and device, video encoding method and device, equipment and storage medium
  • Video decoding method and device, video encoding method and device, equipment and storage medium

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Embodiment Construction

[0106] In order to make the purpose, technical solution and advantages of the present application clearer, the implementation manners of the present application will be further described in detail below in conjunction with the accompanying drawings.

[0107] Before introducing and explaining the embodiment of the present application, first combine figure 1 A brief introduction to video coding technology. figure 1 A basic flow chart of a video encoding process is exemplarily shown.

[0108] A video signal refers to a sequence of images comprising a plurality of frames. A frame is a representation of the spatial information of a video signal. Taking the YUV mode as an example, a frame includes a luma sample matrix (Y) and two chrominance sample matrices (Cb and Cr). From the perspective of the acquisition method of the video signal, it can be divided into two methods: the one captured by the camera and the one generated by the computer. Due to different statistical character...

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Abstract

The invention provides a video decoding method and device, a video encoding method and device, equipment and a storage medium, and relates to the technical field of video encoding and decoding. The method comprises the following steps: decoding from a code stream to obtain string length information of a current string; determining a string length resolution of the current string; and determining the string length of the current string according to the string length information and the string length resolution. The preset string length resolution is decoded from string length information in a code stream to determine the string length of the current string according to the string length information and the string length resolution, and by taking the string length resolution as the divisionand decoding basis of the pixel string, the length of the pixel string in the coding block is limited to be multiple of the string length resolution, so that the uniformity of the pixel string is improved, a decoding end can decode under the condition of memory alignment, and the decoding efficiency of the pixel string is improved.

Description

technical field [0001] The embodiments of the present application relate to the technical field of video encoding and decoding, and in particular, to a video decoding method, a video encoding method, an apparatus, a device, and a storage medium. Background technique [0002] In the current video codec standards, such as VVC (Versatile Video Coding, universal video coding) and AVS3 (Audio Video coding Standard 3, audio and video coding standard 3), the introduction of ISC (Intra StringCopy, intra-frame string copy) prediction technology. [0003] In the related intra-frame string replication technology, a coded block is divided into a series of pixel strings or unmatched pixels according to a certain scanning order, which essentially allows the coded block to be divided into pixel strings of any integer pixel length, such as an unmatched A pixel can then be considered as a string of pixels of length 1. In this way, the length of the pixel string can be any positive integer ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N19/182H04N19/196H04N19/156
CPCH04N19/182H04N19/119H04N19/117H04N19/124H04N19/13H04N19/176H04N19/44H04N19/593H04N19/70H04N19/105H04N19/186H04N19/136H04N19/50
Inventor 王英彬许晓中刘杉
Owner TENCENT TECH (SHENZHEN) CO LTD
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