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A kind of video coding bit resource reallocation method

A video encoding and redistribution technology, applied in the field of video encoding, can solve problems such as difficulty in manipulating rate-distortion curves, high computational load of multiple encodings, and long delays

Active Publication Date: 2022-08-02
HONGHE COLLEGE
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, it is very difficult to obtain an exact operable rate-distortion curve, which involves multiple encodings requiring extremely high computation and long delays

Method used

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  • A kind of video coding bit resource reallocation method
  • A kind of video coding bit resource reallocation method
  • A kind of video coding bit resource reallocation method

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Embodiment Construction

[0056] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0057] The purpose of the present invention is to provide a video coding bit resource reallocation method and system, which improves the compression efficiency of the encoder.

[0058] In order to make the above objects, features and advantages of the present invention more clearly understood, the present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

[0059] ...

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Abstract

The present invention relates to a method and system for redistributing video coding bit resources. The method includes: coding a current frame in an encoder for the first time without outputting a code stream; recording coding resource data during the first coding; The encoding resource data includes the number of bits consumed, the first Lagrangian multiplier used, the distortion and code rate of each coding tree unit; restore the image linked list in the encoder to the state before the current frame; according to the encoding Resource data calculates the number of reassigned bits of each coding tree unit; determines the second Lagrangian multiplier and quantization parameter of each coding tree unit of the current frame according to the number of reassigned bits; A second Lagrangian multiplier and quantization parameter encode the current frame a second time. The invention improves the compression efficiency of the encoder.

Description

technical field [0001] The present invention relates to the technical field of video coding, and in particular, to a method and system for reallocating video coding bit resources. Background technique [0002] The applications of digital video cover various fields such as television broadcasting, digital cinema, distance education, telemedicine, video surveillance, video conversation and streaming media transmission. With the substantial increase in mobile video consumption, video data accounts for the vast majority of global network traffic. part. The massive video data generated by various industries requires huge expenditures for storage and transmission. Therefore, the development of efficient video compression technology is the most direct way to reduce the operating costs of video-related industries. High-efficiency video coding H.265 / HEVC is an international video coding standard following H.264 / AVC. The standard specifies the syntax structure of the encoded bit stre...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N19/124H04N19/147H04N19/184
CPCH04N19/124H04N19/184H04N19/147
Inventor 郭红伟刘婷骆洪军付伟刘春玲李娟
Owner HONGHE COLLEGE