HEVC (High Efficiency Video Coding) decoding complexity control method based on video significance

A technology with complex decoding and control methods, applied in the field of HEVC decoding complexity control based on video saliency, and can solve problems such as not considering perceptual quality optimization

Active Publication Date: 2016-12-07
BEIHANG UNIV +1
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Problems solved by technology

[0006] Aiming at the problem that there is currently no algorithm that can complete video decoding complexity control off-line, and the existing algorithm for reducing HEVC decoding complexity does not consider the optimization of perceptual quality, the present invention proposes a HEVC decoding complexity control based on video saliency method

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  • HEVC (High Efficiency Video Coding) decoding complexity control method based on video significance
  • HEVC (High Efficiency Video Coding) decoding complexity control method based on video significance
  • HEVC (High Efficiency Video Coding) decoding complexity control method based on video significance

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Embodiment Construction

[0116] Below in conjunction with accompanying drawing and specific examples the present invention will be further described:

[0117] A HEVC decoding complexity control method based on video saliency, such as figure 1As shown, firstly, the user sets the target complexity of video decoding according to the computing power of the device, remaining power, or according to his own requirements. Then, predict the saliency of each LCU by detecting the number of bits required for each LCU in the video bitstream to be decoded, and then generate a block-level saliency weight map; then, through the statistics of several training videos Learning, pre-training four functional relationships: the functional relationship between the deblocking filter and the decoding complexity, the functional relationship between the simplified motion compensation and the decoding complexity, the functional relationship between the deblocking filter and the degree of perceptual distortion, And simplify the ...

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Abstract

The invention discloses an HEVC (High Efficiency Video Coding) decoding complexity control method based on video significance and belongs to the field of video decoding. According to the method, firstly, the significance of each LCU (Largest Coding Unit) is predicted through a region significance detection algorithm of an HEVC compression domain; secondly, a plurality of training videos are selected to train function relationships between deblocking filters/simplification movement compensation and decoding complexity/video sensing distortion, and an HEVC decoding complexity control and sensing quality optimization equation is established according to a significance map and the function relationships; and finally the equation is solved, thereby precisely controlling HEVC decoding complexity and ensuring the sensing distortion to be least. The method has the advantages that when the decoding complexity is controlled, the sensing quality of a video is ensured to the greatest extent, a user can carry out decoding according to target complexity appointed by a set demand at a decoding end, so that HEVC decoding can be widely applied to terminal devices with different computing capabilities or different electric quantities, or video playing can be finished in appointed time under a certain electric quantity.

Description

technical field [0001] The invention belongs to the field of video decoding, in particular to a video saliency-based HEVC decoding complexity control method. Background technique [0002] In the field of video decoding, complexity control has an important impact on video decoding; decoding complexity control generally refers to reducing the original decoding complexity to any specified target complexity, while ensuring the minimum video distortion caused by complexity reduction. During the evolution of video coding standards, with the continuous improvement of coding efficiency, the complexity of video decoding is also increasing; reducing and controlling the complexity of video decoding has become a key issue in video decoding. [0003] The latest generation of high-efficiency video coding HEVC (High Efficiency Video Coding) standard can reduce spatio-temporal redundancy to meet the compression requirements of high-definition and even ultra-high-definition video. It has a f...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N19/14H04N19/597H04N19/159H04N19/70H04N19/30H04N19/196H04N19/61H04N19/107H04N19/132H04N19/187H04N19/167H04N19/89
CPCH04N19/107H04N19/132H04N19/14H04N19/159H04N19/167H04N19/187H04N19/196H04N19/30H04N19/597H04N19/61H04N19/70H04N19/89
Inventor 徐迈杨韧陶晓明
Owner BEIHANG UNIV
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