Method and system for generating binary syntax elements of video image frames

A technology of syntax elements and video images, applied in the field of video coding, can solve the problems of low CABAC coding efficiency, and achieve the effects of overcoming low efficiency, improving coding efficiency, and protecting correlation

Active Publication Date: 2019-10-11
ZHUHAI JIELI TECH
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Problems solved by technology

[0007] Based on this, it is necessary to provide a method and system for generating binary syntax elements of video image frames to solve the problem that the traditional syntax element binary generation method makes the overall coding efficiency of CABAC lower.

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  • Method and system for generating binary syntax elements of video image frames
  • Method and system for generating binary syntax elements of video image frames
  • Method and system for generating binary syntax elements of video image frames

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[0027] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, and do not limit the protection scope of the present invention.

[0028] see figure 1 As shown, it is a schematic flowchart of a method for generating a binary syntax element of a video image frame according to an embodiment of the present invention. The generation method of the binary syntax element of the video image frame in this embodiment comprises the following steps:

[0029] Step S101: Obtain the syntax elements to be encoded of the video image frame, group the syntax elements to be encoded according to the category of the syntax elements, and obtain each group of syntax elements;

[0030] Step S102: Perform binarization proc...

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Abstract

The invention relates to a method and system for generating binary syntax elements of a video image frame. The method comprises the following steps: acquiring the syntax elements to be encoded of the video image frame, and grouping the syntax elements; performing binarization processing on each group of syntax elements by adopting a parallel mode, and obtaining binary bitstreams of a plurality of syntax elements; and after cache scheduling, generating the binary syntax elements of the video image frame that conform to a binary arithmetic coding sequence. In the method for generating the binary syntax elements of the video image frame provided by the invention, the independence between different types of syntax elements is fully utilized, and various syntax elements are grouped to realize parallel processing, thereby overcoming the inefficiency of the traditional serial mode processing; and besides, through caching, the problem that bits which are not fixed in length are generated due to the binaryzation of the syntax elements can be overcome, the stable output of multi-bits binary syntax elements can be realized, the processing speed of the binaryzation of the syntax elements is improved, and stable and efficient input is provided for the subsequent efficient binary arithmetic coding, thereby improving the overall coding efficiency of CABAC (Context Adaptive Binary Arithmetic Coding).

Description

technical field [0001] The present invention relates to the technical field of video coding, in particular to a method and system for generating binary syntax elements of video image frames. Background technique [0002] Due to the large amount of original image data in the video, if it is directly transmitted, not only a large storage space is required, but also a high requirement for network transmission bandwidth. Therefore, in order to reduce the video data transmission bandwidth and increase the bit rate of the transmitted data, it is of great significance to compress and encode video images. [0003] At present, many video and image expert groups have conducted long-term research and established some relevant standards for different applications and different bit rate requirements, including JPEG, JPEG2000, MPEG1, MPEG2, MPEG4, H.261, H.263, etc. Wait. AVC (Advanced Video Coding, Advanced Video Coding) - also known as the ITU-T H.264 recommendation and the MPEG-4 Par...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N19/70H04N19/13
Inventor 李敬园桑耀
Owner ZHUHAI JIELI TECH
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