Video coding method and device

A video encoding and equipment technology, applied in the information field, can solve the problems of low operating frequency and small data throughput of CABAC modules

Active Publication Date: 2014-08-06
HUAWEI CLOUD COMPUTING TECH CO LTD
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Problems solved by technology

[0005] However, in the above method, one binary character is processed per clock cycle, resulting in low data throughput and low operating frequency of the CABAC module

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Embodiment Construction

[0076] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0077] In the embodiment of the present invention, the basic idea based on CABAC coding is to use a number on the {0,1} interval to represent a binary string, and its essence is to assign a codeword for the entire binary string instead of assigning Each binary character in the binary string specifies a codeword respectively. Based on CABAC en...

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Abstract

The embodiment of the invention provides a video coding method and device. The method comprises the steps that in a current cycle, a first character and a second character which are consecutive in a character string to be coded are obtained; first candidate values corresponding to the first character are determined, and second candidate values corresponding to the second character are determined; the length of a target interval of the first character is obtained according to the first candidate values and the length of an initial interval of the first character; the length of a target interval of the second character is obtained according to the second candidate values and the length of the target interval of the first character; the lower limit of the target interval of the first character is obtained according to the length of the target interval of the first character and the lower limit of the initial interval of the first character; the lower limit of the target interval of the second character is obtained according to the length of the target interval of the second character and the lower limit of the target interval of the first character; a bit corresponding to the first character is obtained according to the lower limit of the target interval of the first character, and a bit corresponding to the second character is obtained according the lower limit of the target interval of the second character.

Description

technical field [0001] Embodiments of the present invention relate to the field of information technology, and in particular, to a video encoding method and device. Background technique [0002] With the comprehensive upgrade of the digital video application format, it has always been the relentless pursuit of users to obtain the best video experience in a limited space and pipeline under the premise of ensuring high frame rate and high compression rate in the digital video application format. Therefore, in January 2010, the Joint Collaborative Team was jointly established by the ITU-T Video Coding Experts Group (VCEG for short) and the ISO / IEC Moving Picture Experts Group (MPEG for short). Video Coding, referred to as JCT-VC), and uniformly formulated the High Efficiency Video Coding (HEVC) standard. Based on the H.264 / AVC video coding standard, HEVC doubles the compression efficiency and has a huge market prospect. . Context-based Adaptive Binary Arithmetic Coding (CABAC...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N19/13H04N19/91
Inventor 周澍高剑孙浩然
Owner HUAWEI CLOUD COMPUTING TECH CO LTD
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