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

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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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[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 belongs to the technical field of image processing, in particular to an image rain removal method and system based on wavelet analysis. The image deraining method based on wavelet analysis includes: step a: according to wavelet analysis, video frame images are decomposed into layers, and the image information of the decomposed layers is analyzed to obtain layers containing background and color information, layers containing A layer of raindrop noise and a layer containing image texture and object edge information; step b: performing bilateral filtering and edge-preserving denoising processing on the layer containing raindrop noise; step c: calculating the fusion coefficient matrix, according to the fusion The coefficient matrix performs wavelet fusion on the layer containing background and color information, the layer containing raindrop noise, and the layer containing image texture and object edge information, and reconstructs the image according to the fusion result to obtain the rain-removed image. The implementation of the present invention can avoid being disturbed by dynamic characteristics, and remove raindrops more accurately and 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
CPCG06T5/002G06T5/005G06T2207/10016G06T2207/20028G06T2207/20221
Inventor 朱青松李佳恒王磊
Owner SHENZHEN INST OF ADVANCED TECH CHINESE ACAD OF SCI
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