H.265 coding method and device

A technology of an encoding device and an encoding method, which is applied in the directions of image communication, digital video signal modification, electrical components, etc., and can solve problems such as large consumption of hardware resources.

Active Publication Date: 2019-10-22
FUZHOU ROCKCHIP SEMICON
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Problems solved by technology

At present, the existing H.265 algorithm generally h

Method used

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  • H.265 coding method and device
  • H.265 coding method and device
  • H.265 coding method and device

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Embodiment Construction

[0085] In order to explain in detail the technical content, structural features, achieved goals and effects of the technical solution, the following will be described in detail in conjunction with specific embodiments and accompanying drawings.

[0086] see figure 1 , is a schematic diagram of an H.265 encoding device according to an embodiment of the present invention. The device is an image encoding device 110, and the device may be a chip with an image encoding function, or an electronic device including the above chip, such as a smart mobile device such as a mobile phone, a tablet computer, a personal digital assistant, or a personal digital assistant. Computers, computers for industrial equipment and other electronic equipment. The device includes the following modules: a preprocessing module 120, a rough selection module 130 and an accurate comparison module 140, the preprocessing module 120 is connected with the rough selection module 130, the rough selection module 13...

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Abstract

The invention provides an H.265 coding method and device. The H.265 coding device comprises the following modules: a preprocessing module, a coarse selection module and an accurate comparison module,wherein the preprocessing module is used for segmenting a current frame in an original video into a plurality of CTU blocks; the coarse selection module is used for dividing each CTU block according to a plurality of division modes and dividing each CU block into one or more corresponding PU blocks; the coarse selection module is also used for carrying out inter-frame prediction and intra-frame prediction on each division mode of each CTU block and generating one or more pieces of prediction information corresponding to each division mode; and the accurate comparison module is used for performing cost comparison on the prediction information corresponding to each division mode of each CTU block, and generating entropy coding information for generating an H.265 code stream from the currentframe and reconstruction information for generating a reconstruction frame from the current frame. According to the H.265 coding method, the search precision is improved in a distributed search mode,and meanwhile hardware resource consumption is reduced.

Description

technical field [0001] The present invention relates to the field of H.265 encoding, in particular to an H.265 encoding method and device. Background technique [0002] H.265 is a new video coding standard formulated by ITU-T VCEG after H.264. The H.265 standard revolves around the existing video coding standard H.264, retains some original technologies, and improves some related technologies at the same time. The newly added technology is used to improve the relationship between bit stream, encoding quality, delay and algorithm complexity to achieve optimal settings. The specific research content includes: improving compression efficiency, improving robustness and error recovery capability, reducing real-time delay, reducing channel acquisition time and random access delay, reducing complexity, etc. At present, the existing H.265 algorithm generally has the problem of large consumption of hardware resources. Contents of the invention [0003] Therefore, it is necessary...

Claims

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Application Information

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IPC IPC(8): H04N19/513H04N19/56H04N19/86H04N19/122H04N19/13H04N19/176
CPCH04N19/56H04N19/513H04N19/13H04N19/176H04N19/86H04N19/122
Inventor 张善旭陈恒明张圣钦何德龙
Owner FUZHOU ROCKCHIP SEMICON
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