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

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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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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