Image rain removing method and system based on wavelet analysis

A wavelet analysis and image technology, applied in the field of image processing, can solve the problems of algorithm complexity and real-time performance of the algorithm, and the effect of rain removal in dynamic scenes is not ideal.

Inactive Publication Date: 2016-10-12
SHENZHEN INST OF ADVANCED TECH CHINESE ACAD OF SCI
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Problems solved by technology

[0006] The present invention provides an image deraining method and system based on wavelet analysis, aiming to solve the problem that the existing image deraining technology is not ideal for deraining effect on dynamic scenes, and the algorithm complexity and real-time performance of the algorithm cannot be balanced question

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  • Image rain removing method and system based on wavelet analysis
  • Image rain removing method and system based on wavelet analysis
  • Image rain removing method and system based on wavelet analysis

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Embodiment Construction

[0043] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0044] see figure 1 , is a flowchart of a method for removing rain from an image based on wavelet analysis according to an embodiment of the present invention. The image deraining method based on wavelet analysis of the embodiment of the present invention comprises the following steps:

[0045] Step S100: input video frame image;

[0046] Step S200: Perform wavelet multi-layer decomposition on the image according to wavelet analysis, and analyze the image information of each layer to obtain the layer containing background and color information, the layer containing raindrop noise, and the map con...

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Abstract

The invention relates to an image rain removing method and system based on wavelet analysis, and belongs to the technical field of image processing. The method comprises the steps that a) according to wavelet analysis, layer decomposition is carried out on a video frame image, image information of decomposed layers is analyzed, and a layer including background and color information, a layer including raindrop noise and a layer including image texture and object edge information are obtained; b) double-side filtering side-maintaining denoising is carried out on the layer including the raindrop noise; and c) a fusion coefficient matrix is calculated, wavelet fusion is carried out on the layer including background and color information, the layer including raindrop noise and the layer including image texture and object edge information according to the fusion coefficient matrix, and according to a fusion result, the image is reconstructed to obtain a rain-removed image. According to the method and system, interference of dynamic features is avoided, and the raindrops can be removed more accurately and more effectively.

Description

technical field [0001] The invention belongs to the technical field of image processing, in particular to an image rain removal method and system based on wavelet analysis. Background technique [0002] Rain has a great impact on image imaging, which will cause image blur and information coverage. The direct result is that the clarity of video images will decrease, and the digital processing of video images will also be affected by this and the performance will decrease. Restoring the video image polluted by raindrops is beneficial to the further processing of the image, including the performance improvement of image-based target detection, recognition, tracking, segmentation and monitoring technologies. Moreover, image deraining technology based on wavelet analysis has wide application prospects in the fields of modern military, transportation and security monitoring. [0003] The research on the characteristics of raindrops in video images has received extensive attention...

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Application Information

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IPC IPC(8): G06T5/00
CPCG06T2207/20221G06T2207/10016G06T2207/20028G06T5/77G06T5/70
Inventor 朱青松李佳恒王磊
Owner SHENZHEN INST OF ADVANCED TECH CHINESE ACAD OF SCI
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