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HEVC intraframe coding method based on support vector radix

A support vector and intra-frame coding technology, applied in the field of image communication, can solve problems such as increasing computational complexity, and achieve the effects of reducing computational complexity, increasing hardware implementation costs, and saving power consumption

Inactive Publication Date: 2017-02-15
SICHUAN CHANGHONG ELECTRIC CO LTD
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Problems solved by technology

The main goal of HEVC is to significantly improve the compression efficiency while reducing the bit rate by about 50%, but this also brings about an increase in computational complexity

Method used

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  • HEVC intraframe coding method based on support vector radix
  • HEVC intraframe coding method based on support vector radix
  • HEVC intraframe coding method based on support vector radix

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Embodiment Construction

[0020] All features disclosed in this specification, or steps in all methods or processes disclosed, may be combined in any manner, except for mutually exclusive features and / or steps.

[0021] Any feature disclosed in this specification (including any appended claims, abstract and drawings), unless expressly stated otherwise, may be replaced by alternative features which are equivalent or serve a similar purpose. That is, unless expressly stated otherwise, each feature is one example only of a series of equivalent or similar features.

[0022] The specific implementation manners of the present invention will be described in detail below in conjunction with the drawings and embodiments.

[0023] Such as figure 1 and figure 2 As shown, according to an embodiment of the present invention, this embodiment discloses a support vector base-based HEVC intra-frame encoding method, which mainly divides incoming video frames into coding units according to the support vector base-base...

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Abstract

The invention discloses an HEVC intraframe coding method based on a support vector radix, which comprises the following steps of: 1, judging whether a current coded frame is a first frame, if not, directly jumping to the step 4, or directly carrying out quadtree recursive partitioning of an HEVC standard; 2, carrying out statistics on characteristic values under different coding depths and forming training samples; 3, according to the training samples obtained by statistics, training a support vector radix classifier; 4, carrying out extraction of a characteristic value on a current coding block, classifying the characteristic value by the support vector radix classifier obtained by the training samples, and determining a coding depth; 5, carrying out normal coding under the coding depth; and 6, if coding on a video sequence is completely finished, ending the operation, or jumping to the step 1 again. According to the HEVC intraframe coding method disclosed by the invention, on the basis of keeping reducing calculation complexity, hardware implementation cost is not additionally increased. Additional cost cannot be increased for manufacturing of hardware equipment, and meanwhile, power consumption also can be saved.

Description

technical field [0001] The invention relates to the technical problem of video coding intra-frame mode in the field of image communication, in particular to a support vector base-based HEVC intra-frame coding method. Background technique [0002] In recent years, with the rapid development of video services, people's demand for viewing high-definition video is also increasing. The current mainstream video compression coding standard H.264 can no longer adapt to high-definition video transmission under high data volume. Under this trend, a new generation of video compression coding standard HEVC came into being. The main goal of HEVC is to significantly improve the compression efficiency while reducing the bit rate by about 50%, but this also brings about an increase in computational complexity. Therefore, how to reduce the computational complexity of encoding while ensuring the quality of video encoding has become a research hotspot in the field of video encoding. Content...

Claims

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Application Information

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IPC IPC(8): H04N19/176H04N19/593
CPCH04N19/176H04N19/593
Inventor 何娟万蕾王磊
Owner SICHUAN CHANGHONG ELECTRIC CO LTD
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