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» Non-linear approximation of reflectance functions
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ICPR
2002
IEEE
14 years 10 months ago
Self-Calibration and Neural Network Implementation of Photometric Stereo
This paper describes a new approach to neural network implementation of photometric stereo for a rotational object with non-uniform reflectance factor. Three input images are acqu...
Yuji Iwahori, Yumi Watanabe, Robert J. Woodham, Ak...
ESANN
2006
13 years 11 months ago
Reducing policy degradation in neuro-dynamic programming
We focus on neuro-dynamic programming methods to learn state-action value functions and outline some of the inherent problems to be faced, when performing reinforcement learning in...
Thomas Gabel, Martin Riedmiller
IJCGA
2008
77views more  IJCGA 2008»
13 years 9 months ago
Bounded-Velocity Approximation of Mobile Euclidean 2-Centres
Given a set P of points (clients) in the plane, a Euclidean 2-centre of P is a set of two points (facilities) in the plane such that the maximum distance from any client to its ne...
Stephane Durocher, David G. Kirkpatrick
TOG
2002
129views more  TOG 2002»
13 years 9 months ago
Homomorphic factorization of BRDF-based lighting computation
Several techniques have been developed to approximate Bidirectional Reflectance Distribution Functions (BRDF) with acceptable quality and performance for realtime applications. Th...
Lutz Latta, Andreas Kolb
ECCV
2004
Springer
14 years 11 months ago
Accuracy of Spherical Harmonic Approximations for Images of Lambertian Objects under Far and Near Lighting
Various problems in Computer Vision become difficult due to a strong influence of lighting on the images of an object. Recent work showed analytically that the set of all images of...
Darya Frolova, Denis Simakov, Ronen Basri