Influence of GLCM texture parameters on lithological mapping using Sentinel-1 imagery
Gray Level Co-Occurrence Matrix (GLCM) textures demonstrate great potential in lithological mapping, yet the influence of GLCM parameters (window size, distance, and angle) on mapping lithology using Sentinel-1 images has never been thoroughly explored. Textures calculated with different GLCM parame...
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| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Taylor & Francis Group
2024-01-01
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| Series: | Geocarto International |
| Subjects: | |
| Online Access: | https://www.tandfonline.com/doi/10.1080/10106049.2024.2425183 |
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| Summary: | Gray Level Co-Occurrence Matrix (GLCM) textures demonstrate great potential in lithological mapping, yet the influence of GLCM parameters (window size, distance, and angle) on mapping lithology using Sentinel-1 images has never been thoroughly explored. Textures calculated with different GLCM parameters using Sentinel-1 data under different incidence angles were used for lithological classification in a semi-arid area. We found large incidence angle can improve the classification result slightly; larger window size and smaller distance with an appropriate angle can lead to a higher classification accuracy; different parameter combinations can result in a maximum difference in classification accuracy of about 10%, and the highest accuracy (76.27%) is achieved by using a window size of 15*15 with a distance of 1 at the angle of 0°. Our study enhances the application of Sentinel-1-derived GLCM textures in geological fields, the promising classification accuracy indicates more opportunity for lithology discrimination using SAR data compared to earlier studies. |
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| ISSN: | 1010-6049 1752-0762 |