382 search results - page 9 / 77 » Gradient estimation in global optimization algorithms |
SCL
2008
13 years 7 months ago
2008
A deterministic attitude estimation problem for a rigid body in a potential field, with bounded attitude and angular velocity measurement errors is considered. An attitude estimat...
CVPR
2012
IEEE
11 years 10 months ago
2012
IEEE
The projections of world parallel lines in an image intersect at a single point called the vanishing point (VP). VPs are a key ingredient for various vision tasks including rotati...
ICIP
2009
IEEE
13 years 5 months ago
2009
IEEE
In this paper a novel direction adaptive super-resolution (SR) image reconstruction method is proposed. The proposed maximum a-posteriori (MAP) based estimator uses gradient direc...
CVPR
2010
IEEE
14 years 3 months ago
2010
IEEE
Image alignment in the presence of non-rigid distortions is a challenging task. Typically, this involves estimating the parameters of a dense deformation field that warps a disto...
ICIAP
2005
ACM
14 years 7 months ago
2005
ACM
Abstract. We present a technique that achieves local contrast enhancement by representing it as an optimization problem. For this, we first introduce a scalar objective function th...