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ICASSP
2008
IEEE
13 years 10 months ago
An invertible quantization based watermarking approach
In this paper a new class of invertible watermarking approach based on quantization has been introduced. Based on the necessary conditions (blindness, reversibility and impercepti...
Mohammad Javad Saberian, Mohammad Ali Akhaee, Faro...
APPROX
2009
Springer
96views Algorithms» more  APPROX 2009»
13 years 10 months ago
On the Optimality of Gluing over Scales
We show that for every α > 0, there exist n-point metric spaces (X, d) where every “scale” admits a Euclidean embedding with distortion at most α, but the whole space req...
Alexander Jaffe, James R. Lee, Mohammad Moharrami