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» Perceptual Image Distortion
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ICBA
2004
Springer
144views Biometrics» more  ICBA 2004»
15 years 9 months ago
Estimating Fingerprint Deformation
Fingerprint matching is affected by the nonlinear distortion introduced in fingerprint impressions during the image acquisition process. This nonlinear deformation causes finger...
Arun Ross, Sarat C. Dass, Anil K. Jain
PAMI
2006
142views more  PAMI 2006»
15 years 4 months ago
Fingerprint Warping Using Ridge Curve Correspondences
The performance of a fingerprint matching system is affected by the nonlinear deformation introduced in the fingerprint impression during image acquisition. This nonlinear deformat...
Arun Ross, Sarat C. Dass, Anil K. Jain
RT
1998
Springer
15 years 8 months ago
Fidelity of Graphics Reconstructions: A Psychophysical Investigation
In this paper we develop a technique for measuring the perceptual equivalence of a graphical scene to a real scene. Ability to compare images is valuable in computer graphics for a...
Ann McNamara, Alan Chalmers, Tom Troscianko, Erik ...
JDCTA
2010
113views more  JDCTA 2010»
14 years 11 months ago
A Watermarking Algorithm Based on Block Energy Analysis of Wavelet Transform's Coefficients and Lorenz Chaotic Attractor
Perceptual transparency and robustness are conflicting requirements. To ensure the security of the watermarkhow to choose the embedding position and intensity is a difficult probl...
Xuelong Hu, Wei Tian, Yongai Zheng
CVPR
2006
IEEE
16 years 6 months ago
Segmentation by Level Sets and Symmetry
Shape symmetry is an important cue for image understanding. In the absence of more detailed prior shape information, segmentation can be significantly facilitated by symmetry. How...
Tammy Riklin-Raviv, Nahum Kiryati, Nir A. Sochen