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Video rain removing method

A video and element technology, applied in the field of computer vision, can solve problems such as affecting the effect of rain removal and not taking into account the changes in ambient light and other factors

Active Publication Date: 2014-04-16
SHENZHEN INST OF ADVANCED TECH CHINESE ACAD OF SCI
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Problems solved by technology

[0017] In the existing technology, the deraining method based on the brightness information of continuous multi-frame video does not take into account the factors of environmental light changes, so if there is a change in the light in practical applications, it will greatly affect the deraining effect

Method used

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Embodiment Construction

[0033] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0034] see figure 1 , an embodiment of the present invention provides a video rain removal method, which includes the following steps:

[0035] S11. Calculate the difference between the brightness measurement value of the current frame and the actual brightness value of the previous frame as the first element and construct a first matrix.

[0036] Specifically, the difference between the measured brightness value of the current frame and the actual brightness value calculated in the previous frame, that is, the brightness difference between two frames before and after, is calculated, and stored as the first element in the first matrix x. It can be understood that the first matrix x contains multiple first elements.

[0037] In this embodiment, before the step S11, the method further includes: S10, reading in the video, and obtaining...

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Abstract

The invention provides a video rain removing method. According to the video rain removing method, illumination variation factors are taken into consideration, firstly, whether environment illumination varies or not is judged, on the basis, rain removing under the illumination variation condition is achieved according to the illumination variation by changing the Kalman gain Kg, whether pixels under illumination are covered by raindrops or not is judged according to the difference of the brightness measurement value of a current frame and the brightness actual value of a previous frame, and therefore the raindrops are removed. According to the video rain removing method, the environment illumination variation factors are taken into consideration in video rain removing, and video rain removing can be effectively performed when illumination variation exists in the environment.

Description

technical field [0001] The invention relates to the technical field of computer vision, in particular to a method for removing raindrops from a video that includes illumination variation factors. Background technique [0002] Rain has a great impact on video image imaging, which will cause blurring of video image imaging and coverage of information. The direct result is that the definition of video images will decrease, and the digital processing of video images will also be affected by this and the performance will decline. Restoring the video image polluted by raindrops is beneficial to the further processing of the video image. The target detection, tracking, recognition or segmentation technology of video images has been widely used in many fields such as modern military, transportation and security monitoring. [0003] Video rain removal technology has made great progress since it was proposed in 2003. Various methods based on different mathematical and physical models...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T5/00
Inventor 朱青松樊建平陈海鹏王建军谢耀钦王磊
Owner SHENZHEN INST OF ADVANCED TECH CHINESE ACAD OF SCI
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