Speed Up of Shape from Shading Using Graduated Non-convexity.

Daniele Gelli Domenico Vitulano Speed Up of Shape from Shading Using Graduated Non-convexity. 504-513 http://springerlink.metapress.com/openurl.asp?genre=article&issn=0302-9743&volume=2886&spage=504 2003 conf/dgci/2003 DGCI db/conf/dgci/dgci2003.html#GelliV03