Filtering of satellite images in geological lineament analyses: an application to a fault zone in Central Turkey

Date

1998-04-01

Author

Süzen, Mehmet Lütfi

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Lineament extraction and analysis is one of the routines in mapping large areas using remotely-sensed data, most of which is the satellite images. In this study, we aimed to test different lineament extraction techniques including single band, multiband enhancements and spatial domain filtering techniques. A fast algorithm has been developed for time and cost limited surveys in an area with known dominant and/or any selected orientation of lineaments. During the study for single band analysis, histogram equalization and stretching, for multiband, Principal Components Analysis (PCA) and for spatial domain filtering Prewitt and Sobel filters are utilized. Furthermore, we have developed a new algorithm which consists of a combination of large smoothing filters and gradient filters, in order to get rid of the artificial lineaments which are out of interest and to determine discontinuous and/or closely spaced regional lineaments. The results are as follows; the number of lineaments and their total lengths are 218 285.3 km using the single band; 255 343.9 km in multiband enhancements, and 347 644.9 km in the combination of spatial domain filtering including our algorithm. The 59.17 per cent increase in the number of lineaments and the 126.04 per cent increase in the total lengths indicate that a combination of spatial domain filters is the most cost-time efficient algorithm in lineament analyses.

Subject Keywords

Tectonics, Valley

URI

https://hdl.handle.net/11511/47218

Journal

INTERNATIONAL JOURNAL OF REMOTE SENSING

DOI

https://doi.org/10.1080/014311698215621

Collections

Department of Geological Engineering, Article

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Citation Formats

M. L. Süzen, “Filtering of satellite images in geological lineament analyses: an application to a fault zone in Central Turkey,” INTERNATIONAL JOURNAL OF REMOTE SENSING, pp. 1101–1114, 1998, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/47218.