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» A New Contourlet Transform with Sharp Frequency Localization
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ICIP
1997
IEEE
14 years 7 months ago
SVD and log-log frequency sampling with Gabor kernels for invariant pictorial recognition
This paper presents an e cient scheme for a neinvariant object recognition. A ne invariance is obtained by a representation which is based on a new sampling con guration in the fr...
Zhiqian Wang, Jezekiel Ben-Arie
ICPR
2008
IEEE
13 years 12 months ago
Rotation invariant local phase quantization for blur insensitive texture analysis
This paper introduces a rotation invariant extension to the blur insensitive local phase quantization texture descriptor. The new method consists of two stages, the first of whic...
Ville Ojansivu, Esa Rahtu, Janne Heikkilä
PAMI
2007
122views more  PAMI 2007»
13 years 5 months ago
Analyzing Image Structure by Multidimensional Frequency Modulation
—We develop a mathematical framework for quantifying and understanding multidimensional frequency modulations in digital images. We begin with the widely accepted definition of t...
Marios S. Pattichis, Alan C. Bovik
CORR
2007
Springer
148views Education» more  CORR 2007»
13 years 5 months ago
Blind Estimation of Multiple Carrier Frequency Offsets
Multiple carrier-frequency offsets (CFO) arise in a distributed antenna system, where data are transmitted simultaneously from multiple antennas. In such systems the received sign...
Yuanning Yu, Athina P. Petropulu, H. Vincent Poor,...
SSIAI
2002
IEEE
13 years 10 months ago
A Wavelet Filter Bank Which Minimizes a Novel Translation Invariant Discrete Uncertainty Measure
We develop a novel measure of joint time-frequency localization applicable to equivalence classes of finite-length discrete signals, which are of increasing importance in modern ...
Peter C. Tay, Joseph P. Havlicek, Victor E. DeBrun...