5:15 PM - 6:30 PM
*Yuichi S. Hayakawa1, Chiaki T. Oguchi2, Hisashi Aoki3, Natsuki Ariga3 (1.Center for Spatial Information Science, The University of Tokyo, 2.Graduate School of Science and Engineering, Saitama University, 3.Graduate School of Education, Tokyo Gakugei University)