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Dehazing and Defogging

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Computer Vision

Synonyms

Visibility enhancement in bad weather

Related Concepts

Descattering

Definition

Dehazing is a process to visually improve degraded visibility caused by atmospheric conditions where the horizontal visibility on the ground level is greater than 1 km. Defogging is a similar process yet focusing on fog, which, unlike haze, is a cloud of water droplets near ground level reducing the horizontal visibility to less than 1 km. Both dehazing and defogging are part of algorithms to enhance visibility in bad weather due to light being scattered and absorbed by atmospheric particles.

Background

Poor visibility in outdoor scenes generates significant problems for many applications of computer vision. Most automatic systems for surveillance, intelligent vehicles, object recognition, etc., assume the input images have clear visibility. Unfortunately, this assumption does not always hold, particularly in bad weather. Therefore, improving the degraded visibility is practically important.

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Author information

Authors and Affiliations

  1. Department of Information and Computing Sciences, Utrecht University, Padualaan 14, 3584, Utrecht, CH, The Netherlands

    Robby T. Tan

Authors
  1. Robby T. Tan
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Corresponding author

Correspondence to Robby T. Tan .

Editor information

Editors and Affiliations

  1. Institute of Industrial Science, The University of Tokyo, Tokyo, Japan

    Katsushi Ikeuchi

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© 2014 Springer Science+Business Media New York

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Tan, R.T. (2014). Dehazing and Defogging. In: Ikeuchi, K. (eds) Computer Vision. Springer, Boston, MA. https://doi.org/10.1007/978-0-387-31439-6_553

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