The qualitative analyses of cloud cover on optical satellite image

Chih-Heng Liu; Mei-Ling Yeh; Tine-Yin Chou; Lung-Shih Yang

doi:10.1117/12.813243

7 November 2008 The qualitative analyses of cloud cover on optical satellite image

Chih-Heng Liu, Mei-Ling Yeh, Tine-Yin Chou, Lung-Shih Yang

Proceedings Volume 7147, Geoinformatics 2008 and Joint Conference on GIS and Built Environment: Classification of Remote Sensing Images; 714716 (2008) https://doi.org/10.1117/12.813243
Event: Geoinformatics 2008 and Joint Conference on GIS and Built Environment: Geo-Simulation and Virtual GIS Environments, 2008, Guangzhou, China

Abstract

The remote sensing technology has become the important information source in environment investigation, Moreover, optical satellite images are the most important information source. Although the optical satellite images may provides high resolution, multi-spectral images and better vision images than active satellite, the disadvantage is affected by the atmospheric condition easily. In general, the cloud cover is the most common noise, may decrease the image information abundantly and has impact on the environmental monitoring application seriously. According to the cloud imaging model, add defilade manually with different reflection coefficient to simulate different thickness of cloud. Then utilize GIS analytical method and cooperate with histogram calculation to extraction different reflection coefficients boundary. In this research, we get the upper threshold limitation value for haze and lower threshold limitation value for thick heavy cloud. So, we change the classification level from 2 ordinal levels into 3 qualitative levels. We change the thick and haze cover classification into threshold limitation value heavy, haze and fuzzy could cover classification by using the Formosat-2 satellite images. Make use of therefore way, can change the description yardstick into the quantitative yardstick that is we change the ordinal scale into interval scale in the image of cloud cover efficiency.

Citation Download Citation

Chih-Heng Liu, Mei-Ling Yeh, Tine-Yin Chou, and Lung-Shih Yang "The qualitative analyses of cloud cover on optical satellite image", Proc. SPIE 7147, Geoinformatics 2008 and Joint Conference on GIS and Built Environment: Classification of Remote Sensing Images, 714716 (7 November 2008); https://doi.org/10.1117/12.813243

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