Universiti Teknologi Malaysia Institutional Repository

Linear and non-linear enhancement for sun glint reduction in advanced very high resolution radiometer (AVHRR) image

Roslan, Nurul Hani and Md. Reba, Mohd. Nadzri and Askari, M. and Abdullah Halim, Mohd. Khairul (2014) Linear and non-linear enhancement for sun glint reduction in advanced very high resolution radiometer (AVHRR) image. 8th International Symposium of the Digital Earth (ISDE8), 18 (1). ISSN 1755-1315

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Official URL: http://dx.doi.org/10.1088/1755-1315/18/1/012041

Abstract

Cloud detection over water surfaces is difficult due to the sun glint effect. The mixed pixels between both features may introduce inaccurate cloud classification. This problem generally occurs because of less contrast between the glint and the cloud. Both features have almost the same reflectance in the visible wavelength. The piecewise contrast stretch technique shows preservation capability on the reflectance of the cloud. The result of a band ratio was smoothed by applying the Sobel edge detection to provide better cloud feature detection. The study achieved an accuracy of about 77.5% in cloud pixels detection

Item Type:Article
Uncontrolled Keywords:band ratios, cloud classification, cloud detection, feature detection, mixed pixel, over water
Subjects:H Social Sciences > HD Industries. Land use. Labor
Divisions:Geoinformation and Real Estate
ID Code:53318
Deposited By: Siti Nor Hashidah Zakaria
Deposited On:01 Feb 2016 11:53
Last Modified:25 Jul 2018 15:55

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