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ISCAS
1994
IEEE
86views Hardware» more  ISCAS 1994»
13 years 9 months ago
Sign Haar Transform
Abstract: Modified sign Haar transform with sign Walsh-like structure is introduced in this article. This nonlinear transform converts binary/ternary vectors into digital spectral ...
Bogdan J. Falkowski, Susanto Rahardja
IACR
2011
112views more  IACR 2011»
12 years 4 months ago
A Domain Transformation for Structure-Preserving Signatures on Group Elements
We present a generic transformation that allows us to use a large class of pairing-based signatures to construct schemes for signing group elements in a structure preserving way. A...
Melissa Chase, Markulf Kohlweiss
TIP
2008
108views more  TIP 2008»
13 years 5 months ago
Phase-Shifting for Nonseparable 2-D Haar Wavelets
In their recent paper, Alnasser and Foroosh derive a wavelet-domain (in-band) method for phase-shifting of 2-D "nonseparable" Haar transform coefficients. Their approach ...
Mais Alnasser, Hassan Foroosh
ICDE
1999
IEEE
209views Database» more  ICDE 1999»
14 years 6 months ago
Efficient Time Series Matching by Wavelets
Time series stored as feature vectors can be indexed by multidimensional index trees like R-Trees for fast retrieval. Due to the dimensionality curse problem, transformations are ...
Kin-pong Chan, Ada Wai-Chee Fu
ICASSP
2009
IEEE
13 years 9 months ago
A fast feature extraction method
A fast subspace analysis and feature extraction algorithm is proposed which is based on fast Haar transform and integral vector. In rapid object detection and conventional binary ...
Jing Pan, Yanwei Pang, Xuelong Li, Yuan Yuan, Dach...