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Calculation method, electronic equipment and device for intra-frame pixel prediction value

A prediction value and pixel value technology, applied in the field of video coding, can solve the problem that the pixel value prediction of the pixel block is not accurate enough, and achieve the effect of simple and accurate prediction value calculation.

Active Publication Date: 2021-11-16
ZHEJIANG DAHUA TECH CO LTD
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  • Application Information

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Problems solved by technology

[0004] This application provides a calculation method, electronic equipment and device for intra-frame pixel prediction values ​​to solve the problem that the pixel value prediction of the current pixel block is not accurate enough

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  • Calculation method, electronic equipment and device for intra-frame pixel prediction value
  • Calculation method, electronic equipment and device for intra-frame pixel prediction value
  • Calculation method, electronic equipment and device for intra-frame pixel prediction value

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Embodiment Construction

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0027] see figure 1 , figure 1 It is a schematic flow chart of an embodiment of the method for calculating the intra-frame pixel prediction value of the present application.

[0028] An embodiment of the present application provides a method for calculating an intra-frame pixel prediction value, including the following steps:

[0029] S11: Construct multiple first-side reference lines and multiple second-side reference lines based on the current...

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Abstract

The application discloses a calculation method, electronic equipment and a device for intra-frame pixel prediction values. Wherein, the calculation method of the intra-frame pixel prediction value includes: constructing multiple first side reference lines and multiple second side reference lines based on the current pixel block, the first side reference lines are located outside the first side of the current pixel block, and the second The two-side reference line is located outside the second side of the current pixel block, and the first side and the second side are two adjacent sides of the current pixel block; according to the first side reference line and the second side reference line and the current For the correlation of the pixel block, the first reference pixel and the second reference pixel of the current pixel block are acquired; based on the first reference pixel and the second reference pixel, the predicted value of the current pixel block is calculated. By constructing multiple reference lines, the pixels on the nearest reference line can be selected, and the pixels farther away with high correlation with the current pixel block can be selected, so that the selection of reference pixels is more reasonable, and then the prediction value of the current pixel block is calculated. Simple and accurate.

Description

technical field [0001] The present application belongs to the technical field of video coding, and in particular relates to a calculation method, electronic equipment and a device for intra-frame pixel prediction values. Background technique [0002] A video is formed by continuous playback of many still images, and each still image can be regarded as a frame. Since the pixel values ​​of similar pixels in a frame are usually relatively close, the color generally does not change suddenly, so this spatial correlation can be used for compression. This technology is intra-frame prediction. The intra-frame prediction is to predict the pixel value of the current pixel block according to the pixel values ​​of the surrounding pixel points of the current pixel block (ie, reference pixels) in a frame of image. [0003] The current intra-frame prediction modes include multiple angle modes and non-angle modes such as DC and Plane modes. Among them, the selection of reference pixels in ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N19/11H04N19/147H04N19/176
CPCH04N19/11H04N19/147H04N19/176
Inventor 江东方诚林聚财曾飞洋殷俊
Owner ZHEJIANG DAHUA TECH CO LTD