Lei, Yuong-WeiYuong-WeiLeiMING OUHYOUNG2009-05-062018-07-052009-05-062018-07-05199701782789http://ntur.lib.ntu.edu.tw//handle/246246/155196https://www.scopus.com/inward/record.uri?eid=2-s2.0-0031209053&doi=10.1007%2fs003710050104&partnerID=40&md5=6e6df3c9e31831319ce6a74bb8afeb93application/pdf1328995 bytesapplication/pdfen-USCarving: A novel method of visibility preprocessing for un-restricted three-dimensional environmentsjournal article10.1007/s0037100501042-s2.0-0031209053http://ntur.lib.ntu.edu.tw/bitstream/246246/155196/1/20.pdf