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SSWMC
2004
13 years 9 months ago
Universal image steganalysis using rate-distortion curves
The goal of image steganography is to embed information in a cover image using modifications that are undetectable. In actual practice, however, most techniques produce stego imag...
Mehmet Utku Celik, Gaurav Sharma, A. Murat Tekalp
CHES
2008
Springer
151views Cryptology» more  CHES 2008»
13 years 9 months ago
Binary Edwards Curves
Abstract. This paper presents a new shape for ordinary elliptic curves over fields of characteristic 2. Using the new shape, this paper presents the first complete addition formula...
Daniel J. Bernstein, Tanja Lange, Reza Rezaeian Fa...
WADS
2009
Springer
274views Algorithms» more  WADS 2009»
14 years 2 days ago
New Results on Visibility in Simple Polygons
We show that (A), 14 points on the boundary of a Jordan curve, and (B), 16 points in convex position encircled by a Jordan curve, cannot be shattered by interior visibility domains...
Alexander Gilbers, Rolf Klein
ANTS
2010
Springer
252views Algorithms» more  ANTS 2010»
13 years 11 months ago
On a Problem of Hajdu and Tengely
Abstract. We answer a question asked by Hajdu and Tengely: The only arithmetic progression in coprime integers of the form (a2 , b2 , c2 , d5 ) is (1, 1, 1, 1). For the proof, we ...
Samir Siksek, Michael Stoll
SCALESPACE
2001
Springer
13 years 12 months ago
Generic Multi-scale Segmentation and Curve Approximation Method
Abstract. We propose a new complete method to extract significant description(s) of planar curves according to constant curvature segments. This method is based (i) on a multi-sca...
Marielle Mokhtari, Robert Bergevin