724 search results - page 77 / 145 » Robust Image Registration Using Log-Polar Transform |
TIFS
2008
13 years 8 months ago
2008
This paper presents two vector watermarking schemes that are based on the use of complex and quaternion Fourier transforms and demonstrates, for the first time, how to embed waterm...
TMI
2002
13 years 8 months ago
2002
It has been shown that the difference of squares cost function used by standard realignment packages (SPM and AIR) can lead to the detection of spurious activations, because the mo...
JDCTA
2010
13 years 3 months ago
2010
Perceptual transparency and robustness are conflicting requirements. To ensure the security of the watermarkhow to choose the embedding position and intensity is a difficult probl...
CVRMED
1997
Springer
14 years 1 months ago
1997
Springer
In this paper we address the problem of extracting geometric models from low contrast volumetric images, given a template or reference shape of that model. We proceed by deforming...
JRTIP
2007
13 years 8 months ago
2007
We propose a marker-less model-based camera tracking approach, which makes use of GPU-assisted analysis-by-synthesis methods on a very wide field of view (e.g. fish-eye) camera. ...