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A pixel prediction method and device

A prediction method and pixel technology, applied in the field of video coding and decoding, can solve the problem that there is no prediction method, etc.

Active Publication Date: 2016-03-30
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.

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  • A pixel prediction method and device

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Embodiment Construction

[0016] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0017] Please refer to figure 1 , The 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 pixel on the long side of the current block.

[0019] Wherein, the reference pixels are all located on the boundary of the adjacent block close to the curren...

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Abstract

An embodiment of the present invention provides a pixel prediction method, which includes: if the current block is rectangular, and the coded or decoded adjacent blocks of the current block are available, obtain The average pixel value of the reference pixel points, wherein, the reference pixel points are all located on the border of the adjacent block close to the current block; according to the average pixel value of the reference pixel points on the side of the long side, obtain The predicted pixel value of the current block. The pixel prediction method and device provided by the embodiments of the present invention obtain predicted pixels from corresponding adjacent blocks according to the shape of the current block, which conforms to the pixel distribution rule.

Description

Technical field [0001] The present invention relates to video coding and decoding technology, in particular to a pixel prediction method and device in video coding and decoding technology. Background technique [0002] The basic principle of video coding and compression is to use the correlation between the spatial domain, the time domain and the codeword to remove redundancy as much as possible. The current popular approach is to adopt a block-based hybrid video coding framework, that is, at the encoding end, through prediction, transformation, quantization, entropy encoding and other steps to achieve video encoding compression, and at the decoding end, these steps are performed to restore the pixels of the image. value. [0003] Among them, before performing the prediction, the image block needs to be divided into multiple sub-image blocks, and then the prediction is performed using these sub-image blocks as a unit. In the industry, these sub-image blocks are usually square, bu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N19/105H04N19/176H04N19/593H04N19/157
CPCH04N19/105H04N19/11H04N19/157H04N19/176H04N19/593H04N19/50
Inventor 林永兵赖昌材
Owner HUAWEI TECH CO LTD