{"id":6680,"date":"2024-09-11T09:58:48","date_gmt":"2024-09-11T06:58:48","guid":{"rendered":"https:\/\/jfsi.ru\/?p=6680"},"modified":"2024-10-19T20:09:31","modified_gmt":"2024-10-19T17:09:31","slug":"7-2-2024-nikitina","status":"publish","type":"post","link":"https:\/\/jfsi.ru\/en\/7-2-2024-nikitina\/","title":{"rendered":"AUTOMATIC SEGMENTATION OF TREE CROWNS IN PINE FORESTS USING MASK R-CNN ON RGB IMAGERY FROM UAVS"},"content":{"rendered":"<p><a style=\"color: #000000;\" href=\"http:\/\/jfsi.ru\/wp-content\/uploads\/2024\/09\/7-2-2024-Nikitina.pdf\"><img loading=\"lazy\" class=\"size-full wp-image-1122 alignright\" src=\"http:\/\/jfsi.ru\/wp-content\/uploads\/2018\/10\/pdf.png\" alt=\"\" width=\"32\" height=\"32\" \/><\/a><\/p>\n<p style=\"text-align: center;\"><span style=\"font-family: 'times new roman', times, serif;\"><strong>\u00a0 \u00a0 \u00a0 \u00a0\u0410<\/strong><strong>. D. Nikitina<\/strong><\/span><\/p>\n<p style=\"text-align: center;\"><span style=\"font-family: 'times new roman', times, serif;\"><em>\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0Center for Forest Ecology and Productivity of the RAS <\/em><\/span><\/p>\n<p style=\"text-align: center;\"><span style=\"font-family: 'times new roman', times, serif;\"><em>Profsoyuznaya st. 84\/32 bldg. 14, Moscow, 117997, Russia<\/em><\/span><\/p>\n<p style=\"text-align: center;\"><span style=\"font-family: 'times new roman', times, serif;\">E-mail:\u00a0nikitina.al.dm@gmail.com<\/span><\/p>\n<p style=\"text-align: center;\"><span style=\"font-family: 'times new roman', times, serif;\">Received: 18.05.2024<\/span><\/p>\n<p style=\"text-align: center;\"><span style=\"font-family: 'times new roman', times, serif;\">Revised: 05.06.2024<\/span><\/p>\n<p style=\"text-align: center;\"><span style=\"font-family: 'times new roman', times, serif;\">Accepted: 22.06.2024<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-family: 'times new roman', times, serif;\">The article presents the results of applying an improved method for automatic segmentation of RGB imagery obtained using consumer-grade UAVs, based on the Mask R-CNN neural network architecture. Blocks for the preparation and post-processing of raster and vector files have been developed for working with geospatial data. The model was trained on 7000 crowns identified in pine forest of automorphic habitats in the mixed coniferous-broadleaf forest subzone. Training was carried out using cross-validation. Additional data of 1337 crowns were used for verification. During the sequential filtering by area, confidence level, and duplicate segments, the quality of the final segmentation results improved for all age groups of pine forests. The final average precision is 0.87, recall \u2013 0.81, F1-score \u2013 0.83. The results demonstrate the high efficiency of the filtering algorithm in reducing segment redundancy and increasing data reliability. The Mask R-CNN automatic segmentation method is an effective tool for analyzing the characteristics of pine canopies using RGB imagery from UAV surveys. It is capable of replicating the results of visual interpretation with high accuracy. This method particularly advantageous for scaling studies to large areas where manual delineation becomes labor-intensive.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-family: 'times new roman', times, serif;\"><strong><em>Keywords:<\/em><\/strong><em> Mask R-CNN, automatic segmentation, detection trees, pine forests, RGB imagery, UAVs, ecological monitoring, remote sensing<\/em><\/span><\/p>\n<p>&nbsp;<\/p>\n<p style=\"text-align: center;\"><span style=\"font-family: 'times new roman', times, serif;\"><strong>REFERENCES<\/strong><\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-family: 'times new roman', times, serif;\">Agisoft Metashape, available at: <a href=\"http:\/\/www.agisoft.com\">http:\/\/www.agisoft.com<\/a> (2024, 01 June).<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-family: 'times new roman', times, serif;\">Aubry-Kientz M., Dutrieux R., Ferraz A., Saatchi S., Hamraz H., Williams J., A comparative assessment of the performance of individual tree crowns delineation algorithms from ALS data in tropical forests, <em>Remote Sensing<\/em>, 2019, Vol. 11, No 9, pp. 1086 (1\u201321).<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-family: 'times new roman', times, serif;\">Ball J. 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T., Gobakken T., N\u00e6sset E., Use of partial-coverage UAV data in sampling for large scale forest inventories, <em>Remote Sensing of Environment<\/em>, 2017, Vol. 194, pp. 115\u2013126.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-family: 'times new roman', times, serif;\">Tuominen S., N\u00e4si R., Honkavaara E., Balazs A., Hakala T., Viljanen N., Reinikainen J., Tree species recognition in species rich area using UAV-borne hyperspectral imagery and stereo-photogrammetric point cloud, <em>International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences<\/em>, 2017, Vol. XLII-3\/W3, pp. 185\u2013194.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-family: 'times new roman', times, serif;\">Zhou J., Chen X., Li S., Dong R., Wang X., Zhang C., Zhang L., Multispecies individual tree crown extraction and classification based on BlendMask and high-resolution UAV images, <em>Journal of Applied Remote Sensing<\/em>, 2023, Vol. 17, No 1, p. 016503.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-family: 'times new roman', times, serif;\"><strong>\u00a0<\/strong><\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u00a0 \u00a0 \u00a0 \u00a0\u0410. D. Nikitina \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0Center for Forest Ecology and Productivity of the RAS Profsoyuznaya st. 84\/32 bldg. 14, Moscow, 117997, Russia E-mail:\u00a0nikitina.al.dm@gmail.com Received: 18.05.2024 Revised: 05.06.2024 Accepted:&#46;&#46;&#46;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[34],"tags":[],"_links":{"self":[{"href":"https:\/\/jfsi.ru\/en\/wp-json\/wp\/v2\/posts\/6680"}],"collection":[{"href":"https:\/\/jfsi.ru\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/jfsi.ru\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/jfsi.ru\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/jfsi.ru\/en\/wp-json\/wp\/v2\/comments?post=6680"}],"version-history":[{"count":8,"href":"https:\/\/jfsi.ru\/en\/wp-json\/wp\/v2\/posts\/6680\/revisions"}],"predecessor-version":[{"id":6864,"href":"https:\/\/jfsi.ru\/en\/wp-json\/wp\/v2\/posts\/6680\/revisions\/6864"}],"wp:attachment":[{"href":"https:\/\/jfsi.ru\/en\/wp-json\/wp\/v2\/media?parent=6680"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/jfsi.ru\/en\/wp-json\/wp\/v2\/categories?post=6680"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/jfsi.ru\/en\/wp-json\/wp\/v2\/tags?post=6680"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}