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Image defogging processing method, device and camera equipment

A processing method and image technology, which is applied in the field of camera equipment and image defogging processing, can solve problems such as not being able to effectively improve the defogging processing capability of camera equipment, and achieve the effect of improving penetration ability and good image quality

Active Publication Date: 2019-12-20
SHENZHEN ZTE NETVIEW TECH
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AI Technical Summary

Problems solved by technology

Digital fog penetration can effectively improve visual contrast, and is suitable for wide application in urban monitoring due to its low cost and easy deployment. However, it can only rely on digital processing technology to enhance the existing information in the image.
Can not really effectively improve the defogging ability of the camera equipment

Method used

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  • Image defogging processing method, device and camera equipment
  • Image defogging processing method, device and camera equipment

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Embodiment Construction

[0031] The technical scheme of the present invention will be described in further detail below in conjunction with the accompanying drawings and specific examples, so that those skilled in the art can better understand the present invention and implement it, but the examples given are not intended to limit the present invention .

[0032] The core idea of ​​an image defogging processing method provided by an embodiment of the present invention is: on the basis of physical fog penetration and digital fog penetration, combined with infrared color correction to improve the fog penetration effect of current surveillance cameras. First, the near-infrared light is used for imaging through the physical fog penetration method, and an image mixed with visible light and near-infrared light is obtained. Because the image is not completely visible light, the color of the image is biased. After that, the infrared color correction algorithm is used to process the image mixed with near-infr...

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Abstract

The invention discloses an image defogging processing method, a device and a shooting device. The method comprises steps of obtaining a mixed illumination image mixing near infrared light and visible light; calculating a function relation between infrared color components and visible illumination color components in the current mixed illumination image according to proportion of the current infrared light strength and visible light strength and the photoelectric conversion rate curves of the infrared light and the visible light on the an image sensor; obtaining an infrared color correction image corresponding to the current mixed illumination image according to the function relation and mixing the infrared color correction image and the current mixed illumination image so as to obtain an infrared color correction image; and carrying out digital defogging processing on the infrared color correction image so as to obtain a defogging processing image. In this way, a defogged image with high quality can be obtained in a haze environment.

Description

technical field [0001] The present invention relates to the technical field of video surveillance, in particular to an image defogging processing method, device and camera equipment with improved defogging capabilities. Background technique [0002] With the continuous development of current video surveillance technology, people's requirements for video surveillance performance are also getting higher and higher. On the one hand, it is required to be able to obtain the monitored target in the scene in a foggy environment, so as to ensure the fog penetration of the camera equipment. On the other hand, it is required that the collected images have better image quality, so as to improve the user experience. [0003] Traditional fog penetration camera equipment generally adopts the following two fog penetration processing methods: digital fog penetration and physical fog penetration. [0004] For physical fog penetration: When visible light passes through smog, it will be block...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T5/00H04N1/60
Inventor 朱力于顾恩超
Owner SHENZHEN ZTE NETVIEW TECH
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