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CVPR
2012
IEEE
11 years 10 months ago
Shape, albedo, and illumination from a single image of an unknown object
We address the problem of recovering shape, albedo, and illumination from a single grayscale image of an object, using shading as our primary cue. Because this problem is fundamen...
Jonathan T. Barron, Jitendra Malik
IVC
2010
92views more  IVC 2010»
13 years 6 months ago
Shape from incomplete silhouettes based on the reprojection error
Traditional shape from silhouette methods compute the 3D shape as the intersection of the back-projected silhouettes in the 3D space, the so called visual hull. However, silhouett...
Gloria Haro, Montse Pardàs
ICASSP
2009
IEEE
13 years 5 months ago
On the recovery of nonnegative sparse vectors from sparse measurements inspired by expanders
This paper studies compressed sensing for the recovery of non-negative sparse vectors from a smaller number of measurements than the ambient dimension of the unknown vector. We fo...
M. Amin Khajehnejad, Babak Hassibi
CISS
2010
IEEE
12 years 11 months ago
Average case analysis of sparse recovery from combined fusion frame measurements
—Sparse representations have emerged as a powerful tool in signal and information processing, culminated by the success of new acquisition and processing techniques such as Compr...
Petros Boufounos, Gitta Kutyniok, Holger Rauhut
SAGT
2010
Springer
186views Game Theory» more  SAGT 2010»
13 years 5 months ago
On the Efficiency of Markets with Two-Sided Proportional Allocation Mechanisms
We analyze the performance of single-parameter mechanisms for markets in which there is competition amongst both consumers and suppliers (namely, two-sided markets). Specifically, ...
Volodymyr Kuleshov, Adrian Vetta