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151
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IH
2005
Springer
16 years 11 days ago
On the Intractability of Inverting Geometric Distortions in Watermarking Schemes
We examine the problem of watermarking schemes robust against geometric distortions from a complexity theoretic point of view. The main results presented are polynomial time reduct...
Maciej Liskiewicz, Ulrich Wölfel
184
Voted
CONSTRAINTS
1998
108views more  CONSTRAINTS 1998»
15 years 6 months ago
Constraints in Graph Drawing Algorithms
Graphs are widely used for information visualization purposes, since they provide a natural and intuitive tation of complex abstract structures. The automatic generation of drawing...
Roberto Tamassia
160
Voted
CVIU
1999
110views more  CVIU 1999»
15 years 6 months ago
Animated Heads from Ordinary Images: A Least-Squares Approach
We show that we can effectively fit arbitrarily complex animation models to noisy data extracted from ordinary face images Our approach is based on least-squares adjustment, using...
Pascal Fua, C. Miccio
124
Voted
SIAMMAX
2010
88views more  SIAMMAX 2010»
15 years 1 months ago
Schur Decompositions of a Matrix and the Boundary of Its Pseudospectrum
Abstract. We discuss the notion of irreducible block Schur decomposition of a complex square matrix and show how such a decomposition provides information about singularities in th...
Lyonell Boulton, Peter Lancaster
168
Voted
ISORC
1998
IEEE
15 years 11 months ago
Compositional Specification and Structured Verification of Hybrid Systems in cTLA
Many modern chemical plants have to be modelled as complex hybrid systems consisting of various continuous and event-discrete components. Besides of the modular and easy-to-read s...
Peter Herrmann, Günter Graw, Heiko Krumm