DocumentCode
276930
Title
Shape-based description of the facial surface
Author
Coombes, Anne ; Richards, Robin ; Linney, Alf ; Hanna, Elias ; Bruce, Vicki
Author_Institution
Dept. of Med. Phys., London Univ., UK
fYear
1992
fDate
33627
Firstpage
42614
Lastpage
42617
Abstract
The mathematics used to describe surfaces, differential geometry, has been known for some time, but its power for the description of biological surfaces is only just being appreciated. The description of the facial surface presented uses the surface type primitives of Besl and Jain. These are defined by the surface curvatures. The Gaussian curvature is an intrinsic property, unchanging with the way the surface is embedded in 3D space whereas the mean curvature is an extrinsic property. These surface curvatures are independent of each other and both are needed to describe the surface unambiguously
Keywords
computational geometry; Gaussian curvature; differential geometry; facial surface; mean curvature; surface curvatures;
fLanguage
English
Publisher
iet
Conference_Titel
Machine Storage and Recognition of Faces, IEE Colloquium on
Conference_Location
London
Type
conf
Filename
167728
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