Tianli Yu Ning Xu Narendra Ahuja Shape and View Independent Reflectance Map from Multiple Views. 602-616 http://springerlink.metapress.com/openurl.asp?genre=article&issn=0302-9743&volume=3024&spage=602 2004 conf/eccv/2004-4 ECCV (4) db/conf/eccv/eccv2004-4.html#YuXA04