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FORSAT:a 3D forest monitoring system for cover mapping and volumetric 3D change detection

International Journal of Digital Earth 2020年第8期13卷 854-885页

作者： Efstratios Stylianidis devrim akca Daniela Poli Martin Hofer Armin Gruen Victor Sanchez Martin Konstantinos Smagas Andreas Walli Orhan Altan Elisa Jimeno Alejandro Garcia School of Spatial Planning and Development Aristotle University of ThessalonikiThessalonikiGreece Department of Civil Engineering Isik UniversitySileIstanbulTurkey DiXplorer AG ZurichSwitzerland GeoVille Information Systems GmbH InnsbruckAustria Chair of Information Architecture ETH ZurichSwitzerland Ingeniería Y Soluciones Informáticas S.L. SevillaSpain GeoImaging Ltd NicosiaCyprus Ekinoks Surveying Software Engineering Ltd IstanbulTurkey

A 3D forest monitoring system,called FORSAT(a satellite very high resolution image processing platform for forest assessment),was developed for the extraction of 3D geometric forest information from very high resolution(VHR)satellite imagery and the automatic 3D change *** is composed of two complementary tasks:(1)the geometric and radiometric processing of satellite optical imagery and digital surface model(DSM)reconstruction by using a precise and robust image matching approach specially designed for VHR satellite imagery,(2)3D surface comparison for change *** allows the users to import DSMs,align them using an advanced 3D surface matching approach and calculate the 3D differences and volume changes(together with precision values)between *** is a single source and flexible forest information solution,allowing expert and non-expert remote sensing users to monitor forests in three and four(time)*** geometric resolution and thematic content of VHR optical imagery are sufficient for many forest information needs such as deforestation,clear-cut and fire severity *** capacity and benefits of FORSAT,as a forest information system contributing to the sustainable forest management,have been tested and validated in case studies located in Austria,Switzerland and Spain.

关键词： Deforestation 3D VHR satellite imagery orientation image matching DSM generation co-registration volumetric change detection volume precision

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