Segmentation and classification algorithms applied to sentinel-2A images for geological mapping: case of the Al Glo’a sheet (1/50000), Morocco
The multispectral image, of Landsat 7 and 8; Aster and Sentinel-2A, has good results in lithological, structural, hydrothermal and mineralogical alteration mapping. Segmentation and image classification are two complementary steps as they are allowed the most important operations in th...
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| Format: | Article |
| Language: | English |
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General Directorate of Mineral Research and Exploration
2021-12-01
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| Series: | Bulletin of the Mineral Research and Exploration |
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| Online Access: | https://dergipark.org.tr/tr/pub/bulletinofmre/issue/64214/864492 |
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| author | Mustapha Souhassou Khalid El Fazazy Zine El Abidine El Morjanı Mouhssine El Atıllah Abdessamad El Atıllah |
| author_facet | Mustapha Souhassou Khalid El Fazazy Zine El Abidine El Morjanı Mouhssine El Atıllah Abdessamad El Atıllah |
| author_sort | Mustapha Souhassou |
| collection | DOAJ |
| description | The multispectral image, of Landsat 7 and 8; Aster and Sentinel-2A, has good results in lithological, structural, hydrothermal and mineralogical alteration mapping. Segmentation and image classification are two complementary steps as they are allowed the most important operations in the field of image processing. In this sense, this work aims at evaluating the potential of segmentation and classification algorithms for the generation of surface geological maps, hydrothermal alterations and lineaments. Given the good resolution of the Sentinel 2A (10m), the three images, (11/12; 11/2; 11/8), 12.8.2, main component 1, 2 and 3 (11.12.2), processed by five algorithms (K-means, isodata, watershed, efficient graph-based image segmentation, thresholding) for geological mapping and then mining exploration. The study displayed that 1) Watershed algorithm can be used for topographic and hydraulic studies, it can be very useful in the preparation phase of geological and mining infrastructures; 2) threshold segmentation does not give good results in terms of geological discrimination since it divides each image into two parts; 3) the same thing for the effective thresholding and segmentation of graph-based images; 4) The Isodata and K-means algorithms show good geological discrimination. |
| first_indexed | 2024-04-10T14:39:50Z |
| format | Article |
| id | doaj.art-ce3158f21013437a8cdc349657c25d85 |
| institution | Directory Open Access Journal |
| issn | 0026-4563 |
| language | English |
| last_indexed | 2024-04-10T14:39:50Z |
| publishDate | 2021-12-01 |
| publisher | General Directorate of Mineral Research and Exploration |
| record_format | Article |
| series | Bulletin of the Mineral Research and Exploration |
| spelling | doaj.art-ce3158f21013437a8cdc349657c25d852023-02-15T16:08:17ZengGeneral Directorate of Mineral Research and ExplorationBulletin of the Mineral Research and Exploration0026-45632021-12-0116616611312510.19111/bulletinofmre.86449276Segmentation and classification algorithms applied to sentinel-2A images for geological mapping: case of the Al Glo’a sheet (1/50000), MoroccoMustapha Souhassou0Khalid El Fazazy1Zine El Abidine El Morjanı2Mouhssine El Atıllah3Abdessamad El Atıllah4Ibn Zohr University, Polydisciplinary Faculty of Taroudant, Egerne, Taroundant, MoroccoComputer Science, Signals, Automation and Cognitivism Laboratory (LISAC), FSDM, USMBA, Fes, MoroccoIbn Zohr University, Polydisciplinary Faculty of Taroudant, Egerne, Taroundant, MoroccoComputer Science, Signals, Automation and Cognitivism Laboratory (LISAC), FSDM, USMBA, Fes, MoroccoIbn Zohr University, Polydisciplinary Faculty of Taroudant, Egerne, Taroundant, MoroccoThe multispectral image, of Landsat 7 and 8; Aster and Sentinel-2A, has good results in lithological, structural, hydrothermal and mineralogical alteration mapping. Segmentation and image classification are two complementary steps as they are allowed the most important operations in the field of image processing. In this sense, this work aims at evaluating the potential of segmentation and classification algorithms for the generation of surface geological maps, hydrothermal alterations and lineaments. Given the good resolution of the Sentinel 2A (10m), the three images, (11/12; 11/2; 11/8), 12.8.2, main component 1, 2 and 3 (11.12.2), processed by five algorithms (K-means, isodata, watershed, efficient graph-based image segmentation, thresholding) for geological mapping and then mining exploration. The study displayed that 1) Watershed algorithm can be used for topographic and hydraulic studies, it can be very useful in the preparation phase of geological and mining infrastructures; 2) threshold segmentation does not give good results in terms of geological discrimination since it divides each image into two parts; 3) the same thing for the effective thresholding and segmentation of graph-based images; 4) The Isodata and K-means algorithms show good geological discrimination.https://dergipark.org.tr/tr/pub/bulletinofmre/issue/64214/864492segmentation algorithmsclassification algorithmssentinel 2ageological mappinganti-atlas. |
| spellingShingle | Mustapha Souhassou Khalid El Fazazy Zine El Abidine El Morjanı Mouhssine El Atıllah Abdessamad El Atıllah Segmentation and classification algorithms applied to sentinel-2A images for geological mapping: case of the Al Glo’a sheet (1/50000), Morocco Bulletin of the Mineral Research and Exploration segmentation algorithms classification algorithms sentinel 2a geological mapping anti-atlas. |
| title | Segmentation and classification algorithms applied to sentinel-2A images for geological mapping: case of the Al Glo’a sheet (1/50000), Morocco |
| title_full | Segmentation and classification algorithms applied to sentinel-2A images for geological mapping: case of the Al Glo’a sheet (1/50000), Morocco |
| title_fullStr | Segmentation and classification algorithms applied to sentinel-2A images for geological mapping: case of the Al Glo’a sheet (1/50000), Morocco |
| title_full_unstemmed | Segmentation and classification algorithms applied to sentinel-2A images for geological mapping: case of the Al Glo’a sheet (1/50000), Morocco |
| title_short | Segmentation and classification algorithms applied to sentinel-2A images for geological mapping: case of the Al Glo’a sheet (1/50000), Morocco |
| title_sort | segmentation and classification algorithms applied to sentinel 2a images for geological mapping case of the al glo a sheet 1 50000 morocco |
| topic | segmentation algorithms classification algorithms sentinel 2a geological mapping anti-atlas. |
| url | https://dergipark.org.tr/tr/pub/bulletinofmre/issue/64214/864492 |
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