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JDCTA
2010
191views more  JDCTA 2010»
11 years 4 months ago
Improved Wavelet Neural Network Based on Hybrid Genetic Algorithm Applicationin on Fault Diagnosis of Railway Rolling Bearing
The method of improved wavelet transform neural network based on hybrid GA(genetic algorithm) is presented to diagnose rolling bearings faults in this paper. Genetic Artificial Ne...
Guoqiang Cai, Limin Jia, Jianwei Yang, Haibo Liu
TSP
2008
140views more  TSP 2008»
11 years 9 months ago
On the Dual-Tree Complex Wavelet Packet and M-Band Transforms
The two-band discrete wavelet transform (DWT) provides an octave-band analysis in the frequency domain, but this might not be "optimal" for a given signal. The discrete w...
I. Bayram, Ivan W. Selesnick
TMI
2008
136views more  TMI 2008»
11 years 9 months ago
Classification of fMRI Time Series in a Low-Dimensional Subspace With a Spatial Prior
We propose a new method for detecting activation in functional magnetic resonance imaging (fMRI) data. We project the fMRI time series on a low-dimensional subspace spanned by wave...
François G. Meyer, Xilin Shen
CMS
2003
101views Communications» more  CMS 2003»
11 years 11 months ago
Watermark Security via Secret Wavelet Packet Subband Structures
Abstract. Wavelet packet decompositions generalize the classical pyramidal wavelet structure. We use the vast amount of possible wavelet packet decomposition structures to create a...
Werner Dietl, Andreas Uhl
ICIP
2003
IEEE
12 years 2 months ago
Texture analysis: an adaptive probabilistic approach
Two main issues arise when working in the area of texture segmentation: the need to describe the texture accurately by capturing its underlying structure, and the need to perform ...
Karen Brady, Ian Jermyn, Josiane Zerubia
DRM
2005
Springer
12 years 3 months ago
Statistical audio watermarking algorithm based on perceptual analysis
In this paper, we describe a novel statistical audio watermarking scheme. Under the control of the masking thresholds, watermark is embedded adaptively and transparently in the pe...
Xiaomei Quan, Hongbin Zhang
AVSS
2005
IEEE
12 years 3 months ago
Wavelet packets and co-occurrence matrices for texture-based image segmentation
In this paper, a texture-based segmentation approach using wavelet packets, co-occurrence matrices and normalised modiļ¬ed histogram thresholding is discussed and developed. Back...
Marc Bartels, Hong Wei, David C. Mason
ICB
2009
Springer
122views Biometrics» more  ICB 2009»
12 years 4 months ago
A New Fake Iris Detection Method
Recent research works have revealed that it is not difficult to spoof an automated iris recognition system using fake iris such as contact lens and paper print etc. Therefore, it i...
XiaoFu He, Yue Lu, Pengfei Shi
ICIP
2005
IEEE
12 years 11 months ago
Fine spatial scalability in wavelet based image coding
Wavelet transform based image coding algorithms have the two inherent scalable features of SNR scalability and spatial (or resolution) scalability. However, fine scalability is sup...
Donghoon Yu, Jong Beom Ra
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