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3DIM
2005
IEEE
16 years 23 hour ago
Efficient Photometric Stereo Technique for Three-Dimensional Surfaces with Unknown BRDF
The present paper focuses on efficient inverse rendering using a Photometric Stereo technique for realistic surfaces. The technique primarily assumes the Lambertian reflection mod...
Li Shen, Takashi Machida, Haruo Takemura
ICCV
2005
IEEE
16 years 7 hour ago
More-Than-Topology-Preserving Flows for Active Contours and Polygons
Active contour and active polygon models have been used widely for image segmentation. In some applications, the topology of the object(s) to be detected from an image is known a ...
Ganesh Sundaramoorthi, Anthony J. Yezzi
SI3D
2010
ACM
15 years 11 months ago
Epipolar sampling for shadows and crepuscular rays in participating media with single scattering
Scattering in participating media, such as fog or haze, generates volumetric lighting effects known as crepuscular or god rays. Rendering such effects greatly enhances the realism...
Thomas Engelhardt, Carsten Dachsbacher
AMFG
2003
IEEE
122views Biometrics» more  AMFG 2003»
15 years 11 months ago
Is Face Recognition in Pictures Affected by the Center of Projection?
Recognition of unfamiliar faces can be severely impaired when two pictures of a face are taken from different camera distances. This effect of perspective transformation may be pr...
Chang Hong Liu
VISUALIZATION
2003
IEEE
15 years 11 months ago
Feature Space Analysis of Unstructured Meshes
Unstructured meshes are often used in simulations and imaging applications. They provide advanced flexibility in modeling abilities but are more difficult to manipulate and anal...
Ariel Shamir