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Video image rain removal method and system

A video image and image technology, applied in the field of image processing, can solve problems such as poor rain removal effect and misjudgment of rain removal effect in dynamic scenes.

Inactive Publication Date: 2016-02-17
SHENZHEN INST OF ADVANCED TECH CHINESE ACAD OF SCI
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  • Application Information

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Problems solved by technology

[0005] The present invention provides a video image deraining method and system, aiming to solve the problem that the existing video image deraining technology has poor deraining effect, has certain limitations, and has misjudged the deraining effect of dynamic scenes. question

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  • Video image rain removal method and system
  • Video image rain removal method and system

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Embodiment Construction

[0054] 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.

[0055] see figure 1 , is a flowchart of a method for removing rain from a video image according to an embodiment of the present invention. The video image rain removal method of the embodiment of the present invention comprises the following steps:

[0056] Step 100: input the video frame image, and convert the video frame image from RGB color space to YCbCr color space;

[0057] In step 100, the color space is a color model established to quantitatively describe colors and support the generation, storage, processing and display of digital images. As the most basic color model in image processin...

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Abstract

The invention relates to a video image rain removal method and system. The video image rain removal method comprises: step a: inputting a video frame image, and converting the video frame image from an RGB color space to a YCbCr color space; step b: obtaining a Y component sequence of an image video frame, and segmenting an image pixel in a Y component by utilizing a fast fuzzy C-means cluster algorithm to obtain a rain region image; and step c: removing raindrops in the rain region image by utilizing an alpha mixing technology to obtain a final rain-free image. According to the video image rain removal method and system, the time required for raindrop removal is greatly shortened through color space conversion, so that the rain removal efficiency is improved; optimal fuzzy C-means classification of pixels is obtained by utilizing the fast fuzzy C-means cluster algorithm, so that the accuracy of the algorithm is improved; raindrop false detection elimination is performed by adopting the photometric property of the raindrops, so that the identification of dynamic scene raindrops is enhanced; and raindrop removal is performed by utilizing the alpha mixing technology, so that it is ensured that sharp edges are not left after the raindrops are removed.

Description

technical field [0001] The invention belongs to the technical field of image processing, and in particular relates to a method and system for removing rain from a video image. 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, the video image rain removal technology has broad application prospects in the fields of modern military, traffic and security monitoring. [0003] The research on the characteristics of raindrops in video images has been widely concerned by the international a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T5/50G06T7/00
Inventor 朱青松李佳恒王磊
Owner SHENZHEN INST OF ADVANCED TECH CHINESE ACAD OF SCI
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