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FORSAT:a 3D forest monitoring system for cover mapping and volumetric 3D change detection 被引量:1
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作者 Efstratios Stylianidis Devrim Akca +8 位作者 Daniela Poli Martin Hofer Armin Gruen Victor Sanchez Martin Konstantinos Smagas Andreas Walli Orhan Altan Elisa Jimeno Alejandro Garcia 《International Journal of Digital Earth》 SCIE 2020年第8期854-885,共32页
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 resoluti... 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 detection.FORSAT 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 detection.It 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 epochs.FORSAT 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)dimensions.The geometric resolution and thematic content of VHR optical imagery are sufficient for many forest information needs such as deforestation,clear-cut and fire severity mapping.The 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. 展开更多
关键词 DEFORESTATION 3D VHR satellite imagery ORIENTATION image matching DSM generation CO-REGISTRATION volumetric change detection volume precision
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Geoinformatics education and outreach:looking forward
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作者 Jianya Gong Peng Yue +6 位作者 Tsehaie Woldai Fuan Tsai Anjana Vyas Huayi Wu Armin Gruen Le Wang Igor Musikhin 《Geo-Spatial Information Science》 SCIE EI CSCD 2017年第2期209-217,共9页
Geoinformatics education is a key factor for sustainable development of geo-spatial sciences and industries.There have been a variety of educational activities focusing on education and training,technology transfer,an... Geoinformatics education is a key factor for sustainable development of geo-spatial sciences and industries.There have been a variety of educational activities focusing on education and training,technology transfer,and capability building in photogrammetry,remote sensing,and spatial information science,together known as Geoinformatics.Geoinformatics education is an essential mission and even determinant in the ISPRS society.The paper discusses key issues in Geoinformatics education.It reviews educational activities from the ISPRS perspective and summarizes lessons learned from these actions.A vision towards future trends of Geoinformatics education in the ISPRS is provided. 展开更多
关键词 GEOINFORMATICS education and training E-LEARNING summer school
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