An adaptive variable length real-time coding method

A coding method and adaptive technology, applied in image communication, digital video signal modification, electrical components, etc., can solve the problems of inability to meet the requirements of video recording compression quality and compression speed, insufficient real-time performance of CAVLC, and low coding efficiency, etc. Achieve the effect of increasing the number of codes, improving work efficiency, and improving coding efficiency

Active Publication Date: 2020-09-11
BEIJING MXTRONICS CORP +1
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Problems solved by technology

[0003] However, with the further development of mobile video recording equipment, video compression coding is more and more widely used in mobile devices. The real-time performance of CAVLC based on software is not enough, and the coding efficiency is low, which cannot meet the requirements of mobile device video recording for compression quality, compression need for speed

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  • An adaptive variable length real-time coding method
  • An adaptive variable length real-time coding method
  • An adaptive variable length real-time coding method

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[0043] An adaptive variable length real-time encoder proposed by the present invention solves the problems of insufficient real-time performance, low encoding efficiency, and inability to meet the compression quality and compression speed requirements of mobile device video recording in the prior art. , which improves the real-time performance of encoding, and can be applied to real-time video compression in mobile devices.

[0044] An adaptive variable length real-time encoder proposed by the present invention includes a preprocessing module, an encoding module and a packaging module. By using two sets of coefficient storage spaces in the preprocessing module and performing serial-parallel combined entropy coding in the encoding module, the encoder of the present invention can encode the input data blocks in real time.

[0045] Such as figure 1 As shown, an adaptive variable length real-time encoder proposed by the present invention includes a preprocessing module, an encodi...

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Abstract

The invention discloses an adaptive variable length real-time encoder and encoding method. The encoder comprises a pre-processing module, an encoding module and a packaging module; the pre-processingmodule with two groups of coefficient storage space and the encoding module with serial-parallel combined entropy encoding are used for optimizing the structure of the encoder, the efficient encodingis realized, and the real-time encoding requirement is satisfied.

Description

technical field [0001] The invention relates to an adaptive variable length real-time encoder and an encoding method, belonging to the technical field of integrated circuit design. Background technique [0002] H.264 / AVC is a new-generation video coding standard jointly issued by ITU and ISO\IEC. Compared with previous coding standards such as MPEG-4 and H.263, H.264 / AVC has higher coding efficiency and more Good network adaptability. It is widely used in the fields of digital TV, digital subscriber line video service, interactive storage medium (CD, etc.), real-time multimedia service (video conference, etc.), remote monitoring, etc. H.264 / AVC is a block-oriented codec standard based on motion compensation. Its codec process mainly includes five parts: inter prediction and intra prediction, transformation and inverse transformation, quantization and dequantization, loop Filtering, entropy coding. Among them, CAVLC is the last component of video coding processing, and it ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N19/122H04N19/13H04N19/176H04N19/423H04N19/61
CPCH04N19/122H04N19/13H04N19/176H04N19/423H04N19/61
Inventor 王舒敏于立新彭和平庄伟沈国琳钟逸洲
Owner BEIJING MXTRONICS CORP
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