Roland Perko, Joannem Research, Austria; Alexander Almer, Joanneum Research, Austria; Mario Theuermann, Manfred Klopschitz, Thomas Schnabel, Joannem Research, Austria; Peter M. Roth, Technical University of Munich, Germany
Yong Cai, Jiangsu Province Surveying and Mapping Research Institute, China; Dingyuan Chen, Yuanzhe Tang, State Key Laboratory of Information Engineering in Surveying, Mapping and Remote Sensing, Wuhan University, China; Jian Zhang, Ya Gao, Jiangsu Province Surveying and Mapping Research Institute, China