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» On the Hilbert Transform of Wavelets
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APGV
2005
ACM
250views Visualization» more  APGV 2005»
15 years 3 months ago
A perceptual framework for contrast processing of high dynamic range images
Image processing often involves an image transformation into a domain that is better correlated with visual perception, such as the wavelet domain, image pyramids, multi-scale con...
Rafal Mantiuk, Karol Myszkowski, Hans-Peter Seidel
BIOID
2008
157views Biometrics» more  BIOID 2008»
14 years 11 months ago
Modeling Marginal Distributions of Gabor Coefficients: Application to Biometric Template Reduction
Abstract. Gabor filters have demonstrated their effectiveness in automatic face recognition. However, one drawback of Gabor-based face representations is the huge amount of data th...
Daniel González-Jiménez, José...
ICAI
2004
14 years 11 months ago
Use of Histogram Distances in Iris Authentication
Quantitatively establishing the discriminative power of iris biometric data is considered. Multi-level 2D wavelet transform has been widely used for iris verification system. Whil...
Seung-Seok Choi, Sungsoo Yoon, Sung-Hyuk Cha, Char...
95
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CIMAGING
2009
145views Hardware» more  CIMAGING 2009»
14 years 10 months ago
Wavelet-based Poisson rate estimation using the Skellam distribution
Owing to the stochastic nature of discrete processes such as photon counts in imaging, real-world data measurements often exhibit heteroscedastic behavior. In particular, time ser...
Keigo Hirakawa, Farhan A. Baqai, Patrick J. Wolfe
74
Voted
CORR
2010
Springer
258views Education» more  CORR 2010»
14 years 9 months ago
Single Frame Image super Resolution using Learned Directionlets
In this paper, a new directionally adaptive, learning based, single image super resolution method using multiple direction wavelet transform, called Directionlets is presented. Th...
A. P. Reji, Tessamma Thomas