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» Alternatives to the discrete fourier transform
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3DIM
2005
IEEE
14 years 2 months ago
Transform-Based Methods for Indexing and Retrieval of 3D Objects
We compare two transform-based indexing methods for retrieval of 3D objects. We apply 3D Discrete Fourier Transform (DFT) and 3D Radial Cosine Transform (RCT) to the voxelized dat...
Helin Dutagaci, Bülent Sankur, Yücel Yem...
FPGA
2006
ACM
139views FPGA» more  FPGA 2006»
14 years 7 days ago
Fast and accurate resource estimation of automatically generated custom DFT IP cores
This paper presents an equation-based resource utilization model for automatically generated discrete Fourier transform (DFT) soft core IPs. The parameterized DFT IP generator all...
Peter A. Milder, Mohammad Ahmad, James C. Hoe, Mar...
CVPR
2010
IEEE
13 years 9 months ago
The Phase Only Transform for unsupervised surface defect detection
We present a simple, fast, and effective method to detect defects on textured surfaces. Our method is unsupervised and contains no learning stage or information on the texture bei...
Dror Aiger, Hugues Talbot
FGR
2006
IEEE
146views Biometrics» more  FGR 2006»
14 years 2 months ago
Human and Machine Recognition of Fourier-Bessel Filtered Face Images
Motivated by a recently proposed biologically-inspired face recognition approach, psychophysical experiments have been carried out. We measured recognition performance of polar fr...
Yossi Zana, Roberto Marcondes Cesar Junior, Jesus ...
ICDE
1999
IEEE
209views Database» more  ICDE 1999»
14 years 10 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