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FGR
2000
IEEE
114views Biometrics» more  FGR 2000»
14 years 2 months ago
Wide-Range, Person- and Illumination-Insensitive Head Orientation Estimation
We present an algorithm for estimation of head orientation, given cropped images of a subject’s head from any viewpoint. Our algorithm handles dramatic changes in illumination, ...
Ying Wu, Kentaro Toyama
ICMCS
1999
IEEE
139views Multimedia» more  ICMCS 1999»
14 years 2 months ago
Image Indexing and Retrieval Using Image-Derived, Geometrically and Illumination Invariant Features
In this paper, we propose novel image-derived features for image indexing and retrieval in digital library applications. The new features capture the intrinsic geometry and color ...
Ronald-Bryan O. Alferez, Yuan-Fang Wang
DAGM
2007
Springer
14 years 2 months ago
Simultaneous Estimation of Surface Motion, Depth and Slopes Under Changing Illumination
Abstract In this paper we extend a multi-camera model for simultaneous estimation of 3d position, normals, and 3d motion of surface patches [17] to be able to handle brightness cha...
Tobias Schuchert, Hanno Scharr
RT
2000
Springer
14 years 1 months ago
Exact Illumination in Polygonal Environments using Vertex Tracing
Abstract. Methods for exact computation of irradiance and form factors associated with polygonal objects have ultimately relied on a formula for a differential area to polygon form...
Michael M. Stark, Richard F. Riesenfeld
SIGGRAPH
1991
ACM
14 years 1 months ago
A global illumination solution for general reflectance distributions
A general light transfer simulation algorithm for environments composed of materials with arbitrary reflectance functions is presented. This algorithm removes the previous practic...
François X. Sillion, James Arvo, Stephen H....