Qizhi Yu Chongcheng Chen Zhigeng Pan Tianhe Chi Interactive 3-D Visualization of Real Forests. 2003 conf/icat/2003 ICAT http://www.vrsj.org/ic-at/ICAT2003/php/upload/094_camera_d568941581f66ea282c0fdf1a7a0ceae.pdf db/conf/icat/icat2003.html#YuCPC03