Multiscale image dehazing and restoration: An application for visual surveillance
- Authors
- Riaz, Samia; Waqas Anwar, Muhammad; Riaz, Irfan; Kim, Hyun-Woo; Nam, Yunyoung; Attique Khan, Muhammad
- Issue Date
- 1-Jan-2021
- Publisher
- Tech Science Press
- Keywords
- Dehaze; defog; pixel minimum; patch minimum; edge preservation
- Citation
- Computers, Materials and Continua, v.70, no.1, pp.1 - 17
- Journal Title
- Computers, Materials and Continua
- Volume
- 70
- Number
- 1
- Start Page
- 1
- End Page
- 17
- URI
- https://scholarworks.bwise.kr/sch/handle/2021.sw.sch/19910
- DOI
- 10.32604/cmc.2022.018268
- ISSN
- 1546-2218
- Abstract
- The captured outdoor images and videos may appear blurred due to haze, fog, and bad weather conditions. Water droplets or dust particles in the atmosphere cause the light to scatter, resulting in very limited scene discernibility and deterioration in the quality of the image captured. Currently, image dehazing has gained much popularity because of its usability in a wide variety of applications. Various algorithms have been proposed to solve this ill-posed problem. These algorithms provide quite promising results in some cases, but they include undesirable artifacts and noise in haze patches in adverse cases. Some of these techniques take unrealistic processing time for high image resolution. In this paper, to achieve real-time halo-free dehazing, fast and effective single image dehazing we propose a simple but effective image restoration technique using multiple patches. It will improve the shortcomings of DCP and improve its speed and efficiency for high-resolution images. A coarse transmission map is estimated by using the minimum of different size patches. Then a cascaded fast guided filter is used to refine the transmission map. We introduce an efficient scaling technique for transmission map estimation, which gives an advantage of very low-performance degradation for a high resolution image. For performance evaluation, quantitative, qualitative and computational time comparisons have been performed, which provide quiet faithful results in speed, quality, and reliability of handling bright surfaces.
- Files in This Item
- There are no files associated with this item.
- Appears in
Collections - College of Engineering > Department of Computer Science and Engineering > 1. Journal Articles
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.