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A real-time fast defogging system to clear the vision of driver in foggy highway using minimum filter and gamma correction

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Abstract

Fog is the most hindrance and unavoidable problem faced by drivers while driving. Due to foggy condition and poor visibility, especially in early morning and late-night, drivers are unable to see distant object on the road. As a result, possibility of road accident increases. In this article, a fast-real-time vision-based defogging system is proposed to clear the vision of highway during driving in the foggy environmental condition. The proposed system can remove the haziness of the driver’s vision and can present a clear view of the road within a very short span of time. Processing of each frame is comprised of four steps: calculation of atmospheric light using minimum filter, transmission map, scene radiance and finally gamma correction is applied for removing the haziness with perfect contrast adjustment. In order to reduce time complexity, instead of estimating atmospheric light for each frame, it is calculated at an interval of 5000 frames. Many real-time heuristic tests have been conducted during day as well at night on the highway and test analysis reveals that, after defogging, the distance of visibility increases by more than 65% during heavy fog. Besides, there is a massive increase in visibility during low foggy condition also.

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Acknowledgements

The authors would like to thank the National Institute of Technology Agartala, India for providing a world-class research environment including research laboratory.

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Authors and Affiliations

  1. Department of Computer Science and Engineering, National Institute of Technology Agartala, Agartala, Tripura, India

    Gouranga Mandal, Parthasarathi De & Diptendu Bhattacharya

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  1. Gouranga Mandal
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  2. Parthasarathi De
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  3. Diptendu Bhattacharya
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Correspondence to Gouranga Mandal.

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Mandal, G., De, P. & Bhattacharya, D. A real-time fast defogging system to clear the vision of driver in foggy highway using minimum filter and gamma correction. Sādhanā 45, 40 (2020). https://doi.org/10.1007/s12046-020-1282-y

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  • DOI: https://doi.org/10.1007/s12046-020-1282-y

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