The Shape of Shading

dc.creator	Weinshall, Daphna
dc.date	2004-10-04T14:25:35Z
dc.date	2004-10-04T14:25:35Z
dc.date	1990-10-01
dc.date.accessioned	2013-10-09T02:42:19Z
dc.date.available	2013-10-09T02:42:19Z
dc.date.issued	2013-10-09
dc.identifier	AIM-1264
dc.identifier	http://hdl.handle.net/1721.1/5992
dc.identifier.uri	http://koha.mediu.edu.my:8181/xmlui/handle/1721
dc.description	This paper discusses the relationship between the shape of the shading, the surface whose depth at each point equals the brightness in the image, and the shape of the original surface. I suggest the shading as an initial local approximation to shape, and discuss the scope of this approximation and what it may be good for. In particular, qualitative surface features, such as the sign of the Gaussian curvature, can be computed in some cases directly from the shading. Finally, a method to compute the direction of the illuminant (assuming a single point light source) from shading on occluding contours is shown.
dc.format	37 p.
dc.format	3405375 bytes
dc.format	2409179 bytes
dc.format	application/postscript
dc.format	application/pdf
dc.language	en_US
dc.relation	AIM-1264
dc.subject	shape from shading
dc.subject	Lambertian
dc.subject	Gaussian curvature
dc.subject	squalitative vision
dc.title	The Shape of Shading

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