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De-noising method and device of video sequence

A video sequence and video technology, applied in the field of video processing, can solve the problem that the noise intensity estimation δ is not easy to be accurately determined

Active Publication Date: 2012-09-19
UNIV OF SCI & TECH OF CHINA
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  • Abstract
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  • Claims
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Problems solved by technology

Moreover, in the above-mentioned processing scheme for removing noise, there is also the problem that the noise intensity estimation δ is not easy to accurately determine

Method used

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  • De-noising method and device of video sequence
  • De-noising method and device of video sequence

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Embodiment Construction

[0064] 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 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 making creative efforts belong to the protection scope of the present invention.

[0065] The embodiment of the present invention specifically introduces a step-by-step solution method to obtain the noise in the video sequence, so as to facilitate effective removal of the noise in the video sequence. Embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0066] Such as figure 1 As shown, a denoising method for a video sequence provided in an embodiment of t...

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Abstract

The invention discloses a de-noising method and a de-noising device of a video sequence. The de-noising method comprises the following steps of: firstly, decomposing the video sequence into a low-rank part and a sparse part; decomposing the sparse part into a video self-characteristic part and a noise part; and determining the de-noised video sequence according to the low-rank part and the video self-characteristic part. The technical scheme provided by the embodiment can effectively remove noises in the video sequence; and a process of removing the noises in the video sequence does not need to accurately estimate the noise strength, so that the problem that the noise removing effect is not ideal, caused by estimation errors of the noise strength, is solved.

Description

technical field [0001] The present invention relates to the technical field of video processing, in particular to a method and device for denoising a video sequence. Background technique [0002] Due to poor ambient light during video capture and transmission, or problems with the imaging device itself, there is usually corresponding noise in the captured video sequence. On the one hand, the noise in the video sequence can lead to the degradation of video quality, on the other hand, it may also increase the difficulty of video coding, and reduce the efficiency of video coding. Therefore, corresponding denoising (reduction) noise processing is required for the corresponding video sequence (digital image sequence). [0003] The goal of denoising a video sequence is to separate the original video sequence from the noise-contaminated video sequence as much as possible. At present, the method of matrix decomposition is usually used to remove the noise in the video sequence. ...

Claims

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Application Information

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IPC IPC(8): H04N5/21
Inventor 张冬汪张扬李厚强
Owner UNIV OF SCI & TECH OF CHINA
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