Coding method and device of string coding technology and storage medium

A coding method and coding technology technology, applied in the direction of digital video signal modification, electrical components, image communication, etc., can solve the problem of low compression rate, and achieve the effect of improving the compression rate and reducing the number of coding bits

Pending Publication Date: 2021-03-19
ZHEJIANG DAHUA TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the current SP technology has the problem of low compression rate.

Method used

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  • Coding method and device of string coding technology and storage medium
  • Coding method and device of string coding technology and storage medium
  • Coding method and device of string coding technology and storage medium

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Embodiment Construction

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0029] see figure 1 , figure 1 It is a schematic flowchart of an embodiment of an encoding method of the string encoding technology of the present application.

[0030] An embodiment of the present application provides a coding method of string coding technology, including the following steps:

[0031] S11: Obtain predicted motion information.

[0032] Get predicted motion information. The predicted motion information includes motion informati...

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Abstract

The invention discloses a coding method and device based on a string coding technology and a storage medium. The encoding method based on the string encoding technology comprises the following steps:judging whether a current mode is a predetermined mode or not according to a prediction mode syntax element; if so, calculating the optimal prediction motion information with the minimum cost value byutilizing the prediction motion information in the prediction motion vector candidate list, and encoding the motion information of the pixel string by utilizing the optimal prediction motion information; if not, encoding the motion information of the pixel string by using the index and the vector residual of the optimal motion information in the prediction motion vector candidate list. By introducing the new SP mode when the syntax element of the prediction mode represents the predetermined mode, the index and the vector residual SVD of the optimal prediction motion information do not need tobe coded at the same time, and only the pixel string needs to be coded by using the optimal prediction motion information, so that the coding bit number is effectively reduced, and the video coding compression ratio is improved.

Description

technical field [0001] The present application belongs to the technical field of video coding, and in particular relates to a coding method, device and storage medium of serial coding technology. Background technique [0002] The amount of video image data is relatively large, and it is usually necessary to compress the video pixel data (RGB, YUV, etc.). The compressed data is called a video code stream, and the video code stream is transmitted to the client through a wired or wireless network, and then decoded. watch. The entire video coding process includes prediction, transformation, quantization, coding and other processes. [0003] SP technology (string matching prediction technology) is an independent prediction technology, which is aimed at the situation that different areas in the image have the same image content. The n consecutive pixels (n>=1) in the current block are called a string, there can be several different strings in the current block, and each strin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N19/103H04N19/105H04N19/50
CPCH04N19/103H04N19/105H04N19/50
Inventor 方诚江东陈秀丽林聚财殷俊
Owner ZHEJIANG DAHUA TECH CO LTD
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