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129
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Publication
A subband-DCT approach for image watermarking is proposed in this communication. The watermark is casted in a selected number of coefficients of all four bands of a one-level decom...
118
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ICPR
2000
IEEE
15 years 9 months ago
2000
IEEE
We describe a system for analyzing human driver alertness. It relies on optical flow and color predicates to robustly track a person’s head and facial features. Our system clas...
140
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EMMCVPR
1999
Springer
15 years 9 months ago
1999
Springer
In this paper, we propose two Bayesian methods for detecting and grouping junctions. Our junction detection method evolves from the Kona approach, and it is based on a competitive ...
132
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CGF
2002
15 years 4 months ago
2002
This paper presents a robust watermarking algorithm with informed detection for 3D polygonal meshes. The algorithm is based on our previous algorithm [22] that employs mesh-spectr...
150
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IEEEMSP
2002
IEEE
15 years 9 months ago
2002
IEEE
Abstract—Transmission of digital contents in unavoidable noiseprone environments demands sophisticated error detection and concealment techniques to restore the perceptual qualit...