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Method for eliminating video block effect

A video block and block effect technology, applied in the field of image processing, can solve the problem of low image quality due to deblock effect, and achieve the effect of improving image quality

Active Publication Date: 2016-12-07
PEKING UNIV
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  • Claims
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Problems solved by technology

[0004] The main purpose of the present invention is to propose a method for eliminating video blocking effect, aiming at solving the problem of low image quality of deblocking effect in the prior art

Method used

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  • Method for eliminating video block effect
  • Method for eliminating video block effect
  • Method for eliminating video block effect

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Embodiment Construction

[0022] It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0023] Such as figure 1 As shown, embodiments of the present invention provide a method for eliminating video blockiness, including:

[0024] S11, a feature extraction step, performing block effect feature extraction on each frame of image;

[0025] S12, the planar filtering step, performing planar deblocking filtering on each frame of image according to the extracted blockiness features;

[0026] S13, a three-dimensional filtering step, performing three-dimensional deblocking filtering on each frame of image by combining each frame of image and images of a preset number of adjacent frames.

[0027] The method for eliminating video blockiness provided by the embodiment of the present invention can perform blockiness feature extraction according to different blockiness features of each image block in each frame of im...

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Abstract

The invention provides a method for eliminating a video block effect, relates to the technical field of image processing, and aims to solve the problem of low image quality of a block removal effect. The method comprises the following steps of: feature extraction: carrying out block effect feature extraction on each frame of image; plane filtering: according to different extracted block effect features, carrying out plane block removal effect filtering on each frame of image; and three-dimensional filtering: combining each frame of image with a preset frame of image adjacent to the image to carry out three-dimensional block removal effect filtering on each frame of image.

Description

technical field [0001] The invention relates to the technical field of image processing, in particular to a method for eliminating video block effects. Background technique [0002] Block-based transform coding is widely used in image compression coding. However, with the reduction of the bit rate, the quantization becomes more and more rough, and there will be discontinuity at the boundary of the block, forming an obvious defect of the reconstructed image, which is called block effect. [0003] In order to reduce the blocking effect, some blocking effect removal algorithms can be applied to the image. For example, the iterative algorithm based on the convex projection set (POCS) theory, the spatial filtering algorithm, etc., have removed the block effect to a certain extent. However, how to use an algorithm as simple as possible to obtain higher image quality is an urgent problem to be solved by those skilled in the art. Contents of the invention [0004] The main purp...

Claims

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Application Information

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IPC IPC(8): G06T5/00
CPCG06T2207/10016G06T2207/20024G06T5/73
Inventor 杨长水陈瑞贾惠柱解晓东高文
Owner PEKING UNIV
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