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A method for elimination of the stripe between the bands

A striping and striping technology, applied in the field of video coding, can solve the problems of damaging the subjective quality of the image and affecting the subjective quality of the decoded image, and achieve the effect of improving the subjective image quality, eliminating the stripes between stripes, and reducing the computational complexity.

Active Publication Date: 2009-07-15
SHANGHAI GMT DIGITAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This stripe seriously affects the subjective quality of the decoded image, especially when multiple stripes are used in an image, there will be more stripes, which will further damage the subjective quality of the image

Method used

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Examples

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Embodiment Construction

[0021] A kind of preferred embodiment of the present invention is described in detail below:

[0022] The invention provides a method for eliminating stripes between stripes, comprising the following steps:

[0023] Step 1, only adopting one strip in the I frame, eliminates the stripe between the strips of the I frame;

[0024] The I-frame image adopts intra-frame encoding, so in the I-frame, each macroblock adopts intra-frame encoding, and the set of macroblocks is a slice. If there are multiple slices, the macroblocks between adjacent slices The inability to refer to each other makes it difficult for the image texture features of each strip to be the same. And if there are inter-strip stripes in the I frame, there will be inter-strip stripes in each next frame, and it is difficult to eliminate;

[0025] During the coding process of the I frame, the encoder encodes the entire image into one slice, instead of using multiple slices, but only one slice, so that not only there ...

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Abstract

This invention relates to one method to remove band gap beam, which comprises the following steps: a, only adopting one band to remove band gap beam; then computing one frame of image adjacent two band boundary parameter QP values and limiting the band inside macro block QP values to remove band gap seam in B and P frames. This invention provides one method to completely remove the beam to improve subject image quality.

Description

technical field [0001] The invention relates to the technical field of video coding in signal processing, in particular to a method for eliminating streaks between stripes in video coding. Background technique [0002] A number of digital audio and video codec standards that have emerged in recent years are representative of the international standards MPEG-1, H.263, MPEG-2, MPEG-4, H.264 / MPEG-4AVC, the standard AVS independently formulated by my country, WM9 launched by Microsoft, etc., all of these standards define the concept of slices (Slices). In practical applications, due to the consideration of fault tolerance and parallel applications, the application of slices is involved. However, in these applications, due to the use of multiple slices, between adjacent slices, due to the independence of encoding between each other, the encoded image texture features inevitably produce inconsistencies. This inconsistency makes the encoding Images of adjacent slices appear to have...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N7/26H04N7/32H04N19/124H04N19/176H04N19/503H04N19/593H04N19/60
Inventor 李国平赵海武李萍陈勇许昌满
Owner SHANGHAI GMT DIGITAL TECH
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