吕 吕雪松 Unregistered / Unconfirmed GUEST, unregistred user! 2003-04-02 #2 http://www.ipi.uni-hannover.de/isprs-wg2-4/oeepe01_pdfs/lenk.pdf http://www.cad.zju.edu.cn/home/zhaoyb/paper/2001terranwalk_release.pdf
http://www.ipi.uni-hannover.de/isprs-wg2-4/oeepe01_pdfs/lenk.pdf http://www.cad.zju.edu.cn/home/zhaoyb/paper/2001terranwalk_release.pdf