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Pixel predicting method and pixel predicting device

A prediction method and a technology of a prediction device, which are applied in the field of video coding and decoding, and can solve problems such as the absence of a prediction method

Active Publication Date: 2013-01-02
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although dividing image blocks into rectangles can meet specific image block coding requirements to a certain extent, there has not been a prediction method that can well adapt to this new division method.

Method used

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  • Pixel predicting method and pixel predicting device
  • Pixel predicting method and pixel predicting device
  • Pixel predicting method and pixel predicting device

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Embodiment Construction

[0016] 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 of the embodiments of the present invention, not all of them. 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.

[0017] Please refer to figure 1 , an embodiment of the present invention provides a prediction method, including:

[0018] Step 101: If the current block is a rectangle, and the coded or decoded adjacent blocks of the current block are available, obtain the average pixel value of the reference pixels on the long side of the current block.

[0019] Wherein, the reference pixel points are all located on the boundary of the adjacent block close to the c...

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Abstract

An embodiment of the invention provides a pixel predicting method. The method includes that if a current block is in a square shape and adjacent blocks of coded or decoded blocks are available, an average pixel value of reference pixel points on the long lateral side of the current block is obtained, wherein all the reference points are located on the boundary, close the current block, of an adjacent block; and a predicted pixel value of the current block according to the average pixel value of the reference pixel points on the long lateral side is obtained. The pixel predicting method and the pixel predicting device obtain the predicted pixel from a corresponding adjacent block according to the shape of the current block, and regularity of pixel distribution is corresponded.

Description

technical field [0001] The present invention relates to video codec technology, in particular to a pixel prediction method and device in video codec technology. Background technique [0002] The basic principle of video coding and compression is to use the correlation between space domain, time domain and code words to remove redundancy as much as possible. The current popular approach is to use a block-based hybrid video coding framework, that is, at the encoding end, video encoding compression is achieved through steps such as prediction, transformation, quantization, and entropy encoding, and at the decoding end, these steps are correspondingly performed to restore the pixels of the image. value. [0003] Wherein, before performing prediction, the image block needs to be divided into multiple sub-image blocks, and then prediction is performed with these sub-image blocks as units. In the industry, these sub-image blocks are usually square, but with the development of tec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/26H04N7/32H04N19/593
CPCH04N19/00763H04N19/00278H04N7/26H04N19/00042H04N19/00212H04N7/32H04N19/105H04N19/11H04N19/157H04N19/176H04N19/593H04N19/50
Inventor 林永兵赖昌材
Owner HUAWEI TECH CO LTD