Visibility analysis method based on camera image
An analytical method and visibility technology, applied in the field of visibility, can solve the problems of time loss, hidden dangers of traffic safety, inability to meet the needs of high-density live monitoring, etc., and achieve the effect of many samples
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[0028] The specific embodiments of the present invention will be described in further detail below.
[0029] The principle of the visibility analysis method based on the camera image of the present invention is that the visibility change affects the image; the core of the algorithm is to extract the image feature of the marker that can reflect the visibility change, thereby calculating the value of the visibility by analyzing the image feature change. Since the image contrast calculation method has basically the same calculation results and thresholds for the black target with the sky as the background and the white road markings with the black road as the background, the road marking is used as the preset standard, and the image contrast is used as the image feature Parameter, analyze the exponential distribution of image features with distance, and realize the calculation of visibility through the contrast threshold at the critical visibility distance. After presetting the obse...
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