Lineaments Extraction from Satellite Images in Chiang Mai, Chiang Rai, Phayao, and Lampang Province

Abstract

Lineament is one of earth’s surface characteristic which correlated to the surface area such as ridges, rivers or faults which can be sometimes identified to geological structure. Currently, lineament surveying needs field survey data collection which can be time consuming. The objective of the study was to develop semi-automate procedure for extracting lineament form Landsat 8 OLI in some parts of Chiang Rai, Chiang Mai, Phayao, and Lampang provinces. There were 2 steps including 1) satellite data preparation which were used 4 methods containing Sobel Filter, Directional Filter, Laplacian Filter, and Principal Component Analysis (PCA), and 2) lineament extraction from the previous step and lineament transformation using Canny Edge Detection Algorithm. The result indicated that the direction of extracted lineament mostly lied in northeast-southwest direction and extracted lineament from PCA method was the most compatible with earth feature about 24.17%. The Sobel Filter, Directional Filter, and Laplacian Filter methods were compatible with earth feature about 19.30%, 5.13%, and 1.82% respectively.