Hierarchical monitoring video clearness system and method of image quality evaluation and weather status guidance

A technology for image quality evaluation and video monitoring, applied in image analysis, image enhancement, image data processing, etc., can solve problems such as degradation of different types of video, and achieve the effect of easy implementation and simple operation

Inactive Publication Date: 2017-01-04
NANJING UNIV OF TECH +1
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AI Technical Summary

Problems solved by technology

[0009] In view of the different quality of video images under different weather conditions, the general defogging algorithm cannot meet the problems of different types of video degradation. It can per...

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  • Hierarchical monitoring video clearness system and method of image quality evaluation and weather status guidance

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Embodiment 1

[0087] combine figure 1 , a hierarchical surveillance video clearing system for image quality evaluation and weather condition guidance in this embodiment, including a video acquisition module 1 , a video conversion module 2 , a video image processing module 3 and a display module 4 . Video acquisition module 1 is used for obtaining the video image information of monitoring scene when the weather is bad, and is connected with video transformation module 2 by twisted pair, and video acquisition module 1 outputs the video signal that obtains with AV port.

[0088] The video conversion module 2 receives the AV video signal sent by the video acquisition module 1, converts the acquired video signal into the form of a digital image frame (YUV format) by means of decoding and inputs it into the video processing unit, and processes the video image through a dedicated camera interface. Module 3 is connected; the video conversion module 2 uses TI's low-power chip TVP5150AM1PBSR to reali...

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Abstract

The present invention discloses a hierarchical monitoring video clearness system and method of image quality evaluation and weather status guidance, and belongs to the video processing and analysis technology field. The system of the present invention comprises a video acquisition module, a video conversion module, a video image processing module and a display module. The video acquisition module and the video conversion module acquire the images and convert the images into the digital image frames, and the video image processing module synthesizes the weather condition and the image quality evaluation to determine the image defogging grades, and adopts the corresponding algorithms to defog aiming at the images of different grades. The system of the present invention is simple and intelligent in structure, is easy to realize, and has wide application value in the fields, such as the outdoor video monitoring, etc., and the method of the present invention enables the monitoring video online clearness processing efficiency and quality to be improved greatly, at the same time, can effectively avoid the limit that one defogging algorithm can not satisfy the degradation of the videos of different types.

Description

technical field [0001] The present invention relates to the technical field of video processing and analysis, and more specifically, relates to a system and method for hierarchical surveillance video clearing based on image quality evaluation and weather condition guidance. The present invention aims at different weather conditions and according to the image quality evaluation results, Classify and grade the video, and automatically select the corresponding sharpening algorithm for real-time video defogging. Background technique [0002] Due to environmental pollution, regional climate and other reasons, smoggy weather is becoming more and more common across the country, especially in cities. The quality of surveillance video will be severely degraded under such weather conditions. Videos captured under severe weather conditions such as fog, haze, and rain are characterized by low contrast, narrow dynamic range, dull and low-saturation colors, and even color shifts. This d...

Claims

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Application Information

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IPC IPC(8): G06T5/00G06T5/40G06T7/00
CPCG06T5/003G06T5/40G06T2207/10016G06T2207/30192
Inventor 梅雪薛钰张印强仇实陈虎
Owner NANJING UNIV OF TECH
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