AN OBJECT BASED IMAGE ANALYSIS APPROACH FOR THE EXTRACTION OF THE KOLOUMBO VOLCANO AND ASSOCIATED DOMES-CONES FROM A DIGITAL SEABED ELEVATION MODEL


Published: Jul 27, 2016
Keywords:
Geomorphology Koloumbo Greek volcanic arc
D. Βampourda
D. Argialas
P. Nomikou
A. Tzotsos
Abstract

This paper concerns the study of the seafloor through digital seabed elevation models, using object based image analysis methods. The goal of this research was the automated extraction of geomorphological features from the seabed in regions presenting intense volcanic activity. The study area is located around the submarine volcano of the Kolοumbo (in the submarine area northeast of the Santorini island, Greece). For this purpose, a Digital Elevation Model (DEM) of the seabed with a spatial resolution of 50m was used. Derivatives of the DEM, such us Slope, Topographic Position Index (TPI) and Terrain Ruggedness Index (TRI) were created in the open source software "QGIS 2.4". The implementation of the object based image analysis approach was performed in eCognition 8.7 software. Nine segmentation and classification levels were created in order to produce the final level segmentation "level 5", where the final geomorphological features were classified. The results of the method were evaluated using classification stability measures and qualitative and quantitative comparison of the results with existing map.

Article Details
  • Section
  • Seismology
Downloads
Download data is not yet available.
References
Argialas, D. and Tzotsos, A., 2003. Geomorphological Feature Extraction from a Digital Elevation
Model Through Fuzzy Knowledge-based Classification. In: Proceedings of SPIE
International Conference on Remote Sensing, 4886, 516-527.
Armijo, R., Meyer, B., Hubert, A. and Barka, A., 1999. Westward propagation of the North
Anatolian Fault into the northern Aegean: Timing and kinematics, Geology, 27, 267-270.
Argialas, D. and Tzotsos, A., 2006. Automatic Extraction of Physiographic Features and Alluvial
Fans in Nevada, USA from Digital Elevation Models and Satellite Imagery through
Multiresolution Segmentation and Object-oriented Classification. In: Proceedings of ASPRS
Annual Conference, Reno, Nevada, May 1-5.
Baatz, M. and Schape, A., 1999. Object Oriented and Multi-Scale Image Analysis in Semantic
Networks. In: Proceedings of 2nd International Symposium: Operationalization of Remote
Sensing, ITC, Netherlands.
Decker, R. and Decker, B., 1997. Volcanoes (Third Edition), W. H. Freeman & Co publishers.
Drăguţ, L. and Blaschke, T., 2006. Automated classification of landform elements using object -
based image analysis, Geomorphology, 81, 330-344.
Gercek, D., 2010. Object-Based classification of landforms based on their local geometry and
geomorphometic context, A Thesis Submitted, Graduate School of Natural and Applied
Sciences of Middle East Technical, University of Salzburg, 202 pp.
Gorini, M.A., 2009. Physiographic Classification of the Ocean Floor: A Multi-Scale
Geomorphology Approach, Proceedings of Geomorphology 2009, Zurich, Switzerland, 98-
pp.
Mariano, V.Y., Min, J., Park, J.H., Kasturi, R., Mihalcik, D.Li.H., Doermann, D. and Drayer, T.,
Performance evaluation of object detection algorithms. In: Proceedings of
International Conference on Pattern Recognition, 3, 965-969.
Nomikou, P., 2003. Santorini and Nisyros: Similarities and differences between the two calderas of
the modern Aegean Volcanic Arc, CIESM Workshop on “Human records of recent
geological evolution in the Mediterranean Basin-historical and archaeological evidence”,
Santorini 22-25 October 2003, Greece, CIESM Workshop Monographs, n24, 103-108.
Nomikou, P., Carey, S., Papanikolaou, D., Croff Bell, K., Sakellariou, D., Alexandri, M. and
Bejelou, K., 2012. Submarine Volcanoes of the Kolοumbo volcanic zone NE of Santorini
Caldera, Greece, Global and Planetary Change, 90-91, 135-151.
Nomikou, P., Papanikolaou, D., Alexandri, M., Sakellariou, D. and Rousakis, G., 2013a. Submarine
volcanoes along the Aegean Volcanic Arc, Tectonophysics, 507-508, 123-146.
Nomikou, P., Carey, S., Croff Bell, K., Papanikolaou, D., Bejelou, K., Alexandri, M., Cantner, K.
and Martin, J.F., 2013b. Morphological Slope Analysis in the Koloumbo Submarine
Volcanic Zone NE of Santorini Island, Zeitschrift fόr Geomorphologie, 57(3), 037-047.
Grosse, P., van Wyk de Vries, B., Euillades, P.A., Kervyn, M. and Petrinovic, I.A., 2012. Systematic
morphometric characterization of volcanic edifices using digital elevation models,
Geomorphology, 136(1), 114-131.
Riley, S.J., DeGloria, S.D. and Eliot, R., 1999. A Terrain Ruggedness Index that Quantifies
Topographic Heterogeneity, Intermountain Journal of Sciences, 5(1-4), 23-27.
Sakellariou, D., Sigurdsson, H., Alexandri, M., Carey, S., Rousakis, G., Nomikou, P., Georgiou, P.
and Ballas, D., 2010. Active tectonics in the Hellenic volcanic arc: the Koloumbo submarine
volcanic zone, Bulletin of the Geological Society of Greece, XLIII/2, 1056-1062.
Siakavara, K. and Argialas, D., 2013. Automated Identification of Geomorphological and
Topographical and Features of the Seabed by Object Based Image Analysis of Digital Terrain
Models, Zeitschrift für Geomorphologie, Supplementary Issues, 57(3), 63-74.
Sigurdsson, H., Carey, S., Alexandri, M., Vougioukalakis, G., Croff, K., Roman, C., Sakellariou, D.,
Anagnostou, C., Rousakis, G., Ioakim, C., Gogou, A., Ballas, D., Misaridis, T. and Nomikou,
P., 2006. Marine Investigations of Greece’s Santorini Volcanic Field, EOS Trans, AGU, 87
Trimble, 2011. eCognition Developer 8.64.0 Reference Book, Trimble Mü nchen, Germany, 206 pp.
Weiss, A.D., 2001. Topographic Position and Landforms Analysis (Conference Poster), ESRI
International User Conference, San Diego, CA, July 9-13.
Wilson, J.P. and Gallant, J.C., 2000. Terrain Analysis, Principles and Applications, John Wiley and
Sons, Inc., Chichester.
Most read articles by the same author(s)