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- Title
การสกัดแนวเส้นภูมิประเทศจากข้อมูลภาพถ่ายดาวเทียมในเขตจังหวัดเชียงใหม่ เชียงราย พะเยา และลำปาง.
- Authors
ณัฏฐ์ สุขพรสวรรค์; ชนิดา สุวรรณประสิทธิ์; พิษณุ วงศ์พรชัย
- Abstract
Lineament is one of earth's surface characteristic which is correlated to the surface area. Some lineaments can sometimes be identified with geological structures. Currently, lineament surveying needs field survey data collection which can be time consuming. The objective of this study was to develop a semi-automated procedure for extracting lineament form Landsat 8 OLI in some parts of Chiang Rai, Chiang Mai, Phayao, and Lampang provinces. There were 2 steps; 1) satellite data preparation which used 4 methods comprising Sobel Filter, Directional Filter, Laplacian Filter, and Principal Component Analysis (PCA), and 2) lineament extraction from the previous step and lineament transformation using the Canny Edge Detection algorithm. Lineaments were mostly related to connections between mountaina and plain areas. The direction of extracted lineament mostly lied in northeast-southwest direction and extracted lineament from the PCA method was the most compatible with earth features at about 24.17%. The Sobel Filter, Directional Filter, and Laplacian Filter methods were compatible with earth features at about 19.30%, 5.13%, and 1.82% respectively.
- Publication
Journal of Science & Technology MSU, 2020, Vol 39, Issue 6, p672
- ISSN
1686-9664
- Publication type
Academic Journal