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

A video decoding and code stream technology, applied in the field of video encoding and decoding, can solve problems such as low encoding and decoding efficiency, and achieve the effect of improving encoding and decoding efficiency and uniformity.

Pending Publication Date: 2022-02-22
TENCENT TECH (SHENZHEN) CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] There is a problem of low encoding and decoding efficiency in related technologies

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

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Embodiment Construction

[0043] In order to make the purpose, technical solutions and advantages of the application clearer, the following will further describe the implementation of the application in detail in conjunction with the accompanying drawings.

[0044] 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.

[0045] 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 video signal acquisition methods, it can be divided into two methods: captured by a camera and generated by a computer. Due to the different statistical characteristics, the corresponding compression coding ...

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Abstract

The invention provides a video decoding method and device, a video coding method and device, equipment and a storage medium, which relate to the technical field of video coding and decoding. The method comprises the following steps of decoding a code stream to obtain a binary symbol string of string length information of a current string, performing reverse binarization processing on the binary symbol string according to the string length resolution of the current string to obtain string length information, and determining the string length of the current string according to the string length information. The length of the pixel string in the coding and decoding block can be limited to be the multiple of the string length resolution, the uniformity of the pixel string is improved, a coding and decoding end can carry out coding and decoding under the condition of memory alignment, and the coding and decoding efficiency of the pixel string is improved. Besides, in consideration of the influence of the string length resolution on string length information coding and decoding, a binarization and anti-binarization processing method for string length information is provided, the coding and decoding mode of the string length information under different string length resolutions is improved, and the coding and decoding performance can be 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, a device, 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 (IntraString Copy, 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 such ...

Claims

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Application Information

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IPC IPC(8): H04N19/182H04N19/124H04N19/53H04N19/60H04N19/91
CPCH04N19/182H04N19/53H04N19/91H04N19/60H04N19/124H04N19/593H04N19/70H04N19/176H04N19/105H04N19/129H04N19/119H04N19/13
Inventor 王英彬许晓中刘杉
Owner TENCENT TECH (SHENZHEN) CO LTD
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