A Dehazing Method Based on the Fusion of Millimeter Wave and Visible Light Images
An image fusion and millimeter wave technology, applied in the field of image processing, can solve the problems of loss of scene information and poor dehazing effect, achieve good robustness and improve the effect of image dehazing.
Active Publication Date: 2020-09-08
HUAZHONG UNIV OF SCI & TECH
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[0005] In view of the above defects or improvement needs of the prior art, the present invention provides a defogging method based on the fusion of millimeter wave and visible light images, thereby solving the problem that the existing image defogging method may lose scene information under dense fog weather conditions, Technical problem of poor defogging effect
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Embodiment 1
[0058] Taking three sets of visible light images and millimeter wave images under different fog concentration weather, a dehazing method based on the fusion of millimeter wave and visible light images, including:
[0059] (1) Collect visible light images and millimeter wave images under the first fog concentration weather, as shown in Figure 2(a) and Figure 2(b), collect visible light images and millimeter wave images under the second fog concentration weather, As shown in Figure 2(c) and Figure 2(d), the visible light image and the millimeter-wave image under the third fog concentration weather are collected, as shown in Figure 2(e) and Figure 2(f), for the same scene The visible light image and the millimeter wave image are registered together, and then the visible light image is transferred from the RGB color space to the HSV color space, and the brightness component of the visible light image in the HSV color space is extracted to obtain the brightness image.
[0060] (2) ...
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The invention discloses a defogging method based on the fusion of millimeter wave and visible light images, which includes: collecting visible light images and millimeter wave images and registering them, and then extracting the brightness component of the visible light image to obtain a brightness image; according to the difference between the millimeter wave image and the brightness image The weight value of each pixel point is used to obtain the weight map of the millimeter wave image and the brightness image; the Laplacian pyramid decomposition of the millimeter wave image and the brightness image is performed to obtain the Laplacian pyramid of the millimeter wave image and the brightness image, using the millimeter wave The weight map of the image and the brightness image is used to fuse the Laplacian pyramid of the millimeter wave image and the brightness image to obtain the fused image; the visible light image and the millimeter wave image are used to establish a foggy image degradation model, and the foggy image degradation model is used to fuse the fused image Perform defogging to obtain a dehazed image. The invention improves the image defogging effect under dense fog weather conditions and can be used in the fields of video surveillance, intelligent navigation, satellite remote sensing detection and target recognition and tracking.
Description
technical field [0001] The invention belongs to the technical field of image processing, and more specifically relates to a method for defogging based on the fusion of millimeter wave and visible light images. Background technique [0002] Smog is a common weather phenomenon on land and sea. Most outdoor vision systems, such as video surveillance, intelligent navigation, satellite remote sensing detection, and target recognition and tracking, are extremely vulnerable to haze weather. In haze weather, the air contains many atmospheric particles, which not only absorb and scatter the light reflected by the surrounding scene, but also scatter atmospheric light to the imaging device, resulting in the degradation of image quality perceived by the visual system, blurring and low contrast , color distortion and other problems will interfere with subsequent computer vision algorithms based on small features or high frequencies, making it difficult for them to detect targets and obs...
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IPC IPC(8): G06T5/00G06T5/50
CPCG06T5/50G06T2207/20221G06T2207/10004G06T5/73
Inventor 胡飞宋梦婷胡演任宏飞
Owner HUAZHONG UNIV OF SCI & TECH