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Method and system for removing raindrops in videos

A raindrop removal and raindrop technology, applied in image data processing, instrumentation, computing, etc., can solve the problems of long processing time, unfavorable real-time application, and low computing efficiency

Active Publication Date: 2015-11-11
SHENZHEN INST OF ADVANCED TECH CHINESE ACAD OF SCI
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Problems solved by technology

[0006] The present invention provides a video raindrop removal method and system, aiming to solve the technical problems that the existing rain removal algorithm based on rain photometric characteristics has long processing time, low calculation efficiency, and unfavorable real-time application

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  • Method and system for removing raindrops in videos
  • Method and system for removing raindrops in videos

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Embodiment Construction

[0056] 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.

[0057] see figure 1 , is a flowchart of a video raindrop removal method according to an embodiment of the present invention. The video raindrop removal method of the embodiment of the present invention comprises the following steps:

[0058] Step 100: read the video frame, and convert the video frame from RGB color space to YCbCr color space;

[0059] In step 100, for the color space, it is a color model established to quantitatively describe colors and support the generation, storage, processing and display of digital images. The most famous of these is the RGB color space. The main basis for t...

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Abstract

The present invention belongs to the technical field of video raindrop removal, and especially relates to a method and a system for removing raindrops in videos. The method comprises: a step a of reading video frames and performing color space conversion for the video frames; a step b of performing raindrop initial detection through photometric characteristics of static raindrops, performing image edge part identification through a guide filter, and subtracting an edge part from an initial detection result, so as to obtain optimized candidate raindrops; and a step c of obtaining final detection raindrops through a denoising algorithm and raindrop area constraint, and removing the raindrops through a defogging equation and photometric characteristics of dynamic raindrops, so as to obtain a final raindrop removing result. The method of the present invention greatly shortens time required for removing the raindrops, improves raindrop removing efficiency, reduces false detection of raindrop pixels, and avoids introducing of artificial noise, in addition, the method combines the defogging equation and the photometric characteristics of dynamic raindrops to perform raindrop removal processing for images, thereby effectively improving image quality and achieving a good raindrop removal effect.

Description

technical field [0001] The invention belongs to the technical field of video raindrop removal, and in particular relates to a video raindrop removal method and system. Background technique [0002] Due to its many advantages including automation, intelligence, and high efficiency, outdoor computer vision systems are widely used in military defense, medical technology, intelligent transportation and other fields. But severe weather can seriously affect its performance and even cause it to fail completely. Therefore, an effective method to eliminate the influence of severe weather is essential for an all-weather outdoor vision system. In many severe weather conditions, due to the large particle (raindrop) radius and other complex physical characteristics of rain, it will have a greater impact on the image quality captured by the vision system. Video raindrop removal technology uses the physical and frequency characteristics of rain to identify and remove raindrops in video f...

Claims

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Application Information

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IPC IPC(8): G06T5/00
Inventor 朱青松袁杰王磊
Owner SHENZHEN INST OF ADVANCED TECH CHINESE ACAD OF SCI
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