19 search results - page 1 / 4 » Fourier signature in log-polar images |
ICMCS
1999
IEEE
13 years 9 months ago
1999
IEEE
Digital watermarks have been proposed as a method for discouraging illicit copying and distribution of copyrighted material. This paper describes a method for the secure and robus...
ICPR
2006
IEEE
14 years 5 months ago
2006
IEEE
Magnetic resonance imaging (MRI) allows numerous Fourier domain sampling schemes such as Cartesian and non-Cartesian trajectories (e.g. Polar, circular, and spherical). On the oth...
VISAPP
2007
13 years 5 months ago
2007
Abstract. In image-based robot navigation, the robot localises itself by comparing images taken at its current position with a set of reference images stored in its memory. The pro...
IH
1998
Springer
13 years 9 months ago
1998
Springer
This paper2 presents a new approach for the secure and robust copyright protection of digital images. A system for generating digital watermarks and for trading watermarked images ...
CVPR
2008
IEEE
14 years 6 months ago
2008
IEEE
In this work we construct scale invariant descriptors (SIDs) without requiring the estimation of image scale; we thereby avoid scale selection which is often unreliable. Our start...