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113
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IJCV
2006
117views more  IJCV 2006»
15 years 22 days ago
Programmable Imaging: Towards a Flexible Camera
In this paper, we introduce the notion of a programmable imaging system. Such an imaging system provides a human user or a vision system significant control over the radiometric an...
Shree K. Nayar, Vlad Branzoi, Terrance E. Boult
CORR
2007
Springer
167views Education» more  CORR 2007»
15 years 22 days ago
Optimal Solutions for Sparse Principal Component Analysis
Given a sample covariance matrix, we examine the problem of maximizing the variance explained by a linear combination of the input variables while constraining the number of nonze...
Alexandre d'Aspremont, Francis R. Bach, Laurent El...
IVC
2006
97views more  IVC 2006»
15 years 21 days ago
Dominant colour extraction in DCT domain
As most of MPEG and JPEG compression standards are DCT-based, we propose a simple, low-cost and fast algorithm to extract dominant colour features directly in DCT domain without i...
Jianmin Jiang, Ying Weng, Pengjie Li
76
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CVIU
2007
102views more  CVIU 2007»
15 years 21 days ago
An optical navigation sensor for micro aerial vehicles
This paper describes a catadioptric microsensor for multidirectional imaging and 3D egomotion computation. Inspired by the wide viewing angle of insects’ compound eyes, we show ...
Christel-Loic Tisse, Hugh F. Durrant-Whyte, R. And...
JCC
2006
68views more  JCC 2006»
15 years 21 days ago
Explicit factorization of external coordinates in constrained statistical mechanics models
If a macromolecule is described by curvilinear coordinates or rigid constraints are imposed, the equilibrium probability density that must be sampled in Monte Carlo simulations in...
Pablo Echenique, Iván Calvo