Method, device and system for processing image residual block

A processing method and residual block technology, which are applied in the field of video coding and decoding, can solve the problems of large computational complexity, high coding and decoding computational complexity, and limited effects, and achieve the effect of improving performance and reducing coding and decoding complexity.

Active Publication Date: 2012-05-09
HUAWEI TECH CO LTD
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Problems solved by technology

However, the existing technology is only suitable for the intra-frame coding process and cannot improve the performance of the inter-frame coding. Moreover, the number of candidate transform bases used in the existing technology is usually large, resulting in a large amount of calculation, and the existing scheme relies on the transform The selection of the basis, the error of the transformation basis significantly affects the performance of the encoding
The solution of the existing technology has high complexity of encoding and decoding operations, and the effect achieved is very limited

Method used

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  • Method, device and system for processing image residual block
  • Method, device and system for processing image residual block
  • Method, device and system for processing image residual block

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Embodiment Construction

[0037] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0038] An embodiment of the present invention provides a processing method for an image residual block, see figure 2 , the method includes:

[0039] Step 21: Transform coding the residual block of the block to be coded using a transform basis to obtain the transform coefficient of the residual block;

[0040] It should be understood that if there are multiple transformation bases, the transformation base used here may be the optimal transformation base among the ...

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Abstract

The embodiment of the invention discloses a method, a device and a system for processing an image residual block, relating to the technical field of video coding and decoding and capable of increasing the video compression coding performance and reducing the complexity in coding and decoding calculation. The method for processing the image residual block, provided by the embodiment of the invention, comprises the steps of: performing transformation coding on residual blocks of blocks to be coded by adopting a transformation base to obtain transformation coefficients of the residual blocks; determining a scanning sequence of the transformation coefficients of the residual blocks according to the transformation base and the grain direction information of the blocks to be coded; and scanningthe transformation coefficients of the residual blocks according to the scanning sequence to obtain the scanned transformation coefficients.

Description

technical field [0001] The present invention relates to the technical field of video encoding and decoding, in particular to a processing method, device and system for an image residual block. Background technique [0002] With the leap of information technology, video communication technology has also been greatly developed and applied. Due to the huge amount of data in the video sequence, it is necessary to compress the video encoding at the sending end of the network transmission, and decode the compressed video at the receiving end. The H.264 / AVC standard formulated by the Joint Video Team (JVT) is currently the mainstream video codec technology. [0003] H.264 adopts a hybrid coding framework that combines temporal motion compensation based on image blocks and spatial transform coding. However, when there is rotation and scaling in the video image sequence, and motion compensation for exact matching cannot be performed, a large residual signal will be generated at the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/26H04N7/50
CPCH04N19/00278H04N7/26244H04N19/00109H04N19/00296H04N19/00157H04N7/26127H04N7/2625H04N7/26095H04N19/18H04N19/129H04N19/14H04N19/176
Inventor 宋锦王栋
Owner HUAWEI TECH CO LTD
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