Sciweavers

309 search results - page 1 / 62
» A Rational Rotation Method for Robust Geometric Algorithms
Sort
View
COMPGEOM
1992
ACM
13 years 8 months ago
A Rational Rotation Method for Robust Geometric Algorithms
John F. Canny, Bruce Randall Donald, Eugene K. Res...
GIS
2005
ACM
14 years 5 months ago
Use of rational numbers in the design of robust geometric primitives for three-dimensional spatial database systems
A necessary step in the implementation of three-dimensional spatial data types for spatial database systems and GIS is the development of robust geometric primitives. The authors ...
Brian E. Weinrich, Markus Schneider
ICDIM
2007
IEEE
13 years 11 months ago
An access control video watermarking method that is robust to geometric distortions
: A new video watermarking algorithm for access control is introduced. This method is content-dependent and uses the dual tree complex wavelet transform (DT CWT) to create a waterm...
Lino Coria-Mendoza, Panos Nasiopoulos, Rabab Kreid...
ICIP
2004
IEEE
14 years 6 months ago
Rotation and cropping resilient data hiding with zernike moments
Most digital data hiding schemes are sensitive to simple geometric attacks namely rotation, cropping, and scaling. Of these, rotational attacks possess the capability to not only ...
Palak K. Amin, Koduvayur P. Subbalakshmi
CVPR
2008
IEEE
14 years 6 months ago
Robust statistics on Riemannian manifolds via the geometric median
The geometric median is a classic robust estimator of centrality for data in Euclidean spaces. In this paper we formulate the geometric median of data on a Riemannian manifold as ...
P. Thomas Fletcher, Suresh Venkatasubramanian, Sar...