944 search results - page 143 / 189 » An evaluation of image based steganography methods |
CIVR
2004
Springer
14 years 1 months ago
2004
Springer
Abstract. Scene structuring is a video analysis task for which no common evaluation procedures have been fully adopted. In this paper, we present a methodology to evaluate such tas...
ICCV
2003
IEEE
14 years 10 months ago
2003
IEEE
This paper addresses the problem of calibrating camera lens distortion, which can be signi?cant in medium to wide angle lenses. While almost all existing nonmetric distortion cali...
ICML
2006
IEEE
14 years 9 months ago
2006
IEEE
When given a small sample, we show that classification with SVM can be considerably enhanced by using a kernel function learned from the training data prior to discrimination. Thi...
WACV
2012
IEEE
12 years 4 months ago
2012
IEEE
We propose an online algorithm based on local sparse representation for robust object tracking. Local image patches of a target object are represented by their sparse codes with a...
CVPR
2012
IEEE
11 years 11 months ago
2012
IEEE
This paper is aimed at calibrating the relative posture and position, i.e. extrinsic parameters, of a stationary camera against a 3D reference object which is not directly visible...