{"id":383,"date":"2019-03-23T10:09:13","date_gmt":"2019-03-23T06:09:13","guid":{"rendered":"http:\/\/journal.geonatres.az\/?p=383"},"modified":"2019-07-18T23:27:11","modified_gmt":"2019-07-18T19:27:11","slug":"segmentation-quality-assessment-for-varying-spatial-resolutions-of-very-high-resolution-satellite-imagery","status":"publish","type":"post","link":"https:\/\/journal.geonatres.az\/en\/segmentation-quality-assessment-for-varying-spatial-resolutions-of-very-high-resolution-satellite-imagery\/","title":{"rendered":"SEGMENTATION QUALITY ASSESSMENT FOR VARYING SPATIAL RESOLUTIONS OF VERY HIGH RESOLUTION SATELLITE IMAGERY"},"content":{"rendered":"<p style=\"text-align: justify;\"><strong>T.Kavzoglu, H.Tonbul<\/strong><\/p>\n<p style=\"text-align: justify;\"><em>Gebze Technical University, Engineering Faculty, Department of Geomatics Engineering, <\/em><\/p>\n<p style=\"text-align: justify;\"><em>41400, Kocaeli, Turkey <\/em><\/p>\n<p style=\"text-align: justify;\">kavzoglu@gtu.edu.tr<\/p>\n<p style=\"text-align: justify;\"><strong>Abstract.\u00a0<\/strong>Due to the complex nature of remotely sensed imagery, it is difficult to construct meaningful image objects by segmenting a landscape features in an image. Because many factors including parameter selection, band weights, spectral resolution, spatial resolution and textural information affect the quality of the segments to be produced, a comprehensive analysis is required to assure high quality image objects. In this study, the influence of the spatial resolution on segmentation quality was analysed using Worldview-2 satellite image at five different spatial resolutions (0.5, 2, 4, 8, 16 meters). The multiresolution segmentation algorithm, the most widely used method and available in eCognition software, was utilized for the segmentation processes in this study. The ef\u00adfect of spatial resolution on the segmentation quality was investigated on three specific land use\/cover types namely, building, pasture and road by using quality measures of shape index, area fit index and quality rate. It has been observed that resampling the image from 0.5 to 2, 4, 8, 16 meters remarkably reduced the quality of the segmentation results. For instance, when increasing the spatial resolution from 8 to 16 meters, the quality rate decreased by about 77% for road class. The results of this study revealed that the use of 4 meters or higher resolutions (i.e. 0.5 and 2 meters) would produce acceptable results in terms of segmentation quality metrics. When the lower re\u00adso\u00adlution is preferred, the quality of the segments decreases considerably, thus the created image objects become too coarse, indicating an increase in under-segmentation.<\/p>\n<p style=\"text-align: justify;\"><strong>REFERENCES<\/strong><\/p>\n<p style=\"text-align: justify;\">1. Baatz, M., Schape, A., 2000, Multiresolution Seg\u00admentation: An\u00a0 Optimization\u00a0 Approach\u00a0 for\u00a0 High\u00a0 Qu\u00adality\u00a0 MultiScale Image Segmentation. Strobl, J., Bla\u00adschke, T. and Griesbner, G. (Ed.), Angewandte Geo\u00adgraphische Informations- Verar\u00adbeitung, XII, Wichmann Verlag, Karlsruhe, Ger\u00admany, 12-23.<\/p>\n<p style=\"text-align: justify;\">2. Cheng, J., Bo, Y., Zhu, Y., Ji, X., 2014. A novel met\u00adhod for assessing the segmentation quality of high-spa\u00adtial resolution remote-sensing images. In\u00adternational Jo\u00adurnal of Remote Sensing 35 (10), 3816\u20133839.<\/p>\n<p style=\"text-align: justify;\">3. Clinton, N., Holt, A., Scarborough, J., Yan, L., Gong, P., 2010. Accuracy Assessment Measures for Ob\u00adject-based Image Segmentation Goodness. Photogram\u00admetric Engineering &#038; Remote Sensing 76 (3), 289\u2013299.<\/p>\n<p style=\"text-align: justify;\">4. Dr\u0103gut, L., Csillik, O., Eisank, C., Tiede, D., 2014. Automated Parameterisation for Multi- Scale Image Segmentation on Multiple Layers ISPRS Jo\u00adurnal of Photogrammetry and Remote Sensing, 88 (100), 119\u2013127.<\/p>\n<p style=\"text-align: justify;\">5. Johnson, B., Xie, Z., 2011. Unsupervised image seg\u00admentation evaluation and refinement using a multi-scale approach. ISPRS Journal of Photo\u00adgrammetry and Re\u00admote Sensing 66, 473-483.<\/p>\n<p style=\"text-align: justify;\">6. Kavzoglu, T. 2017. Object-Oriented Random Forest for High Resolution Land Cover Mapping Using Qu\u00adickbird-2 Imagery, Handbook of Neural Computation, pp. 607-619, pg.\u00a0\u00a0 658, ISBN: 9780128113196, Amster\u00addam: Elsevier.<\/p>\n<p style=\"text-align: justify;\">7. Kavzoglu, T., Yildiz Erdemir, M., Tonbul, H., 2017. Classification of semiurban landscapes from very high resolution satellite images using a regio\u00adnalized multi\u00adscale segmentation approach. Journal of Applied Re\u00admote Sensing, 11 (3), 035016.<\/p>\n<p style=\"text-align: justify;\">8. Kavzoglu, T., Tonbul, H., 2018, An Experimen\u00adtal Comparison of Multi-Resolution Segmentation, SLIC and K- Means Clustering for Object-Based Classifi\u00adca\u00adtion of VHR Imagery. International Jo\u00adurnal of Remote Sensing, (published online),\u00a0doi.org\/10.1080\/01431161.2018.1506592.<\/p>\n<p style=\"text-align: justify;\">9. Kim, M., Madden, M., Warner., T. A., 2009. Forest Type Mapping Using Object-specific Tex\u00adture Measures from Multispectral IKONOS Image\u00adry: Segmentation Quality and Image Classification Issues. Photogram\u00admetric Engineering &#038; Remote Sensing, 75 (7), 819\u2013829.<\/p>\n<p style=\"text-align: justify;\">10. Kim, M., Warner, T.A., Madden, M., Atkinson, D.S., 2011. Multi-scale GEOBIA with very high spatial resolution digital aerial imagery: scale, tex\u00adture and image objects. International Journal of Re\u00admote Sensing 32 (10), 2825\u20132850.<\/p>\n<p style=\"text-align: justify;\">11. Lenar\u010di\u010d, \u0160.A., Ritlop, K., Duric, N., Cotar, K., O\u0161\u00adtir, K., 2015. Impact of spatial resolution on cor\u00adrelation between segmentation evaluation metrics and forest classification accuracy, Proceedings of SPIE &#8211; The International Society for Optical Engi\u00adneering, pp. 9643,96430T.<\/p>\n<p style=\"text-align: justify;\">12. Lucieer, A., Stein, A., 2002. Existential Uncer\u00adtainty of Spatial Objects Segmented from Satellite Sensor Ima\u00adgery. IEEE Transactions on Geoscience and Remote Sensing 40, 2518\u20132521.<\/p>\n<p style=\"text-align: justify;\">13. Mesner, N., O\u0161tir,K., 2014. Investigating the impact of spatial and spectral resolution of satellite images on segmentation quality.\u00a0 Journal\u00a0 of\u00a0 Ap\u00adplied\u00a0 Remote\u00a0 Sensing\u00a0 8,\u00a0 083696\u2013083696.<\/p>\n<p style=\"text-align: justify;\">14. Neubert, M., Herold, H., Meinel,\u00a0 G.,\u00a0 2006. Evalua\u00adtion\u00a0 of remote sensing image segmentation quality\u2013fur\u00adther results and concepts. The Interna\u00adti\u00adonal Archives of the Photogrammetry, Remote Sensing and Spatial Infor\u00admation Sciences, vol. XXXVI, no. 4\/C42, pp. 6-11, 2006.<\/p>\n<p style=\"text-align: justify;\">15. Winter,\u00a0 S.,\u00a0 2000.\u00a0 Location\u00a0 Similarity\u00a0 of\u00a0 Re\u00adgions.\u00a0 ISPRS Journal of Photogrammetry and Re\u00admote Sensing 55 (3), 189\u2013200.<\/p>\n<p style=\"text-align: justify;\">16. Zhang, Y. J., 1996. A Survey on Evaluation Methods for Image Segmentation. Pattern Re\u00adcog\u00adnition 29 (8), 1335\u20131346.<\/p>\n<p style=\"text-align: justify;\">17. Zhang, H., J., Fritts, E., Goldman, S. A., 2008. Ima\u00adge Segmentation Evaluation: A Survey of Un\u00adsupervised Methods. Computer Vision and Image Understanding 110, 260\u2013280.<\/p>\n<p style=\"text-align: justify;\">18. Zhang, L., Li, X., Yuan, Q., Liu, Y. 2014. Ob\u00adject-based approach to national land cover map\u00adping using HJ satellite imagery. Journal of Applied Remote Sensing 8, 083686<\/p>\n<p>&nbsp;<\/p>\n<p><a href=\"http:\/\/journal.geonatres.az\/wp-content\/uploads\/2019\/03\/T.Kavzoglu-H.Tonbul-2018_N-2.pdf\">Download the article<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>T.Kavzoglu, H.Tonbul Gebze Technical University, Engineering Faculty, Department of Geomatics Engineering, 41400, Kocaeli, Turkey kavzoglu@gtu.edu.tr Abstract.\u00a0Due to the complex nature of remotely sensed imagery, it is difficult to construct meaningful image objects by segmenting a landscape features in an image. Because many factors including parameter selection, band weights, spectral resolution, spatial resolution and textural information [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2],"tags":[],"class_list":["post-383","post","type-post","status-publish","format-standard","hentry","category-article"],"blocksy_meta":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>SEGMENTATION QUALITY ASSESSMENT FOR VARYING SPATIAL RESOLUTIONS OF VERY HIGH RESOLUTION SATELLITE IMAGERY<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/journal.geonatres.az\/en\/segmentation-quality-assessment-for-varying-spatial-resolutions-of-very-high-resolution-satellite-imagery\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:locale:alternate\" content=\"az\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"SEGMENTATION QUALITY ASSESSMENT FOR VARYING SPATIAL RESOLUTIONS OF VERY HIGH RESOLUTION SATELLITE IMAGERY\" \/>\n<meta property=\"og:description\" content=\"T.Kavzoglu, H.Tonbul Gebze Technical University, Engineering Faculty, Department of Geomatics Engineering, 41400, Kocaeli, Turkey kavzoglu@gtu.edu.tr Abstract.\u00a0Due to the complex nature of remotely sensed imagery, it is difficult to construct meaningful image objects by segmenting a landscape features in an image. 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Because many factors including parameter selection, band weights, spectral resolution, spatial resolution and textural information [&hellip;]","og_url":"https:\/\/journal.geonatres.az\/en\/segmentation-quality-assessment-for-varying-spatial-resolutions-of-very-high-resolution-satellite-imagery\/","og_site_name":"Geography and Natural Resources","article_published_time":"2019-03-23T06:09:13+00:00","article_modified_time":"2019-07-18T19:27:11+00:00","og_image":[{"width":1536,"height":1024,"url":"https:\/\/journal.geonatres.az\/wp-content\/uploads\/2026\/03\/ChatGPT-Image-27-\u043c\u0430\u0440.-2026-\u0433.-01_39_18.png","type":"image\/png"}],"author":"Sarkhan Jafarov","twitter_card":"summary_large_image","twitter_misc":{"Written by":"Sarkhan Jafarov","Est. reading time":"11 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