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A method for enhancing vision of intelligent vehicle in smog weather

A visual enhancement and smart car technology, applied in the field of visual enhancement, can solve problems such as the complexity of weather conditions, and achieve the effects of ensuring safety and comfort, high computing efficiency, and improving contrast and clarity

Active Publication Date: 2019-01-15
重庆大数据研究院有限公司
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AI Technical Summary

Problems solved by technology

However, due to the complexity and randomness of weather conditions, some algorithms proposed so far have certain limitations, and some research results and research methods that have been obtained are still in continuous development and need to be further perfected and improved.
In the prior art, aiming at the degradation of images collected by the road vision system in fog and haze, no effective image enhancement method in fog and haze has been found, so that image enhancement can be effectively realized in fog and haze weather, and the video signal can be effectively improved. image quality and increased sensitivity

Method used

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  • A method for enhancing vision of intelligent vehicle in smog weather
  • A method for enhancing vision of intelligent vehicle in smog weather
  • A method for enhancing vision of intelligent vehicle in smog weather

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Embodiment Construction

[0044] Below in conjunction with accompanying drawing and embodiment the present invention will be further described:

[0045] Such as figure 1 Shown, a kind of haze weather smart car visual enhancement method, comprises the following steps:

[0046] 1) Convert the image from RGB color space to HSV color space;

[0047] 2) Assess the haze concentration;

[0048] 3) Calculate the atmospheric coverage parameters;

[0049] 4) Obtain the foreground image I vis (x);

[0050] 5) Use the guided filtering algorithm of the brightness channel to obtain the current haze density as the background image, use the Gaussian filter to remove image noise, and increase the influence of atmospheric coverage parameters on the foreground image.

[0051] 6) According to step 5), the visual enhancement result is output.

[0052] According to Dr.He's dark prior theory, a clear image has low pixel values ​​in at least one of the three RGB color channels, which can be expressed as:

[0053] J da...

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Abstract

A method for enhancing vision of intelligent vehicle in smog weather includes converting image from RGB color space to HSV color space; 2) evaluating the smog concentration; 3) calculating atmosphericcoverage parameters; 4) obtaining a foreground image Ivis (x); 5) the current smog concentration is obtained by the directional filtering algorithm of the luminance channel as the background image, the image noise is removed by the Gaussian filter, and the influence of the atmospheric coverage parameters on the foreground image is increased; 6) according to step 5), outputting vision enhancementresult. The invention can effectively improve the contrast and clarity of the video, at the same time, has higher compute efficiency, effectively improves the image quality of the video signal, enhances the sensitivity, thus ensuring the safety and comfort of unmanned manipulation.

Description

technical field [0001] The invention relates to the field of vision enhancement, in particular to a vision enhancement method for a smart car in haze weather. Background technique [0002] The current computer vision system on the road is very sensitive to weather conditions, among which, the fog and haze weather conditions are the most serious one to the visual impact of various weather conditions. Under foggy weather conditions, the visibility is greatly reduced, the visibility of the road environment system becomes poor, and the obtained image is severely degraded, not only blurred, the contrast is reduced, but also serious color shift and distortion occur. Many features contained in the image are covered, which greatly reduces the application value of the image, and also makes these visual systems unable to work normally. [0003] In recent years, the sharpening processing of hazy images has become a research hotspot in the field of computer vision and image processing,...

Claims

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Application Information

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IPC IPC(8): G06T5/00G06T7/90
CPCG06T7/90G06T2207/10016G06T5/73G06T5/70
Inventor 刘斌陈勇王东强
Owner 重庆大数据研究院有限公司
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