Wavelength-Adaptive Dehazing Using Histogram Merging-Based Classification for UAV Images

Clicks: 199
ID: 35586
2015
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Abstract
Since incoming light to an unmanned aerial vehicle (UAV) platform can be scattered by haze and dust in the atmosphere, the acquired image loses the original color and brightness of the subject. Enhancement of hazy images is an important task in improving the visibility of various UAV images. This paper presents a spatially-adaptive dehazing algorithm that merges color histograms with consideration of the wavelength-dependent atmospheric turbidity. Based on the wavelength-adaptive hazy image acquisition model, the proposed dehazing algorithm consists of three steps: (i) image segmentation based on geometric classes; (ii) generation of the context-adaptive transmission map; and (iii) intensity transformation for enhancing a hazy UAV image. The major contribution of the research is a novel hazy UAV image degradation model by considering the wavelength of light sources. In addition, the proposed transmission map provides a theoretical basis to differentiate visually important regions from others based on the turbidity and merged classification results.
Reference Key
yoon2015wavelengthadaptivesensors Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Yoon, Inhye;Jeong, Seokhwa;Jeong, Jaeheon;Seo, Doochun;Paik, Joonki;
Journal sensors
Year 2015
DOI
DOI not found
URL
http://www.mdpi.com/1424-8220/15/3/6633
Keywords Keywords not found

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