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ICASSP
2011
IEEE
14 years 10 months ago
Applications of short space-time fourier analysis in digital acoustics
This paper presents a signal processing tool for analyzing and manipulating digitized acoustic wave fields, based on a spatio-temporal extension of the time–frequency represent...
Francisco Pinto, Martin Vetterli
ICASSP
2011
IEEE
14 years 10 months ago
STFT-based denoising of elastograms
In ultrasound elastography, axial strains of the examined tissue are calculated by the differentiation of the measured axial displacements. However, the results become obscured as...
Tsz-Kin Hon, Suba Raman Subramaniam, Apostolos Geo...
ICASSP
2011
IEEE
14 years 10 months ago
Rotation invariant feature extraction from 3-D acceleration signals
In this paper, we propose a method to extract features from three-dimensional acceleration signals. The proposed method is based on the (auto-)correlation matrix of Fourier transf...
Takumi Kobayashi, Kôiti Hasida, Nobuyuki Ots...
ICASSP
2011
IEEE
14 years 10 months ago
The Bayesian inference of phase
Bayesian recursive inference of phase in additive Gaussian noise environments is studied. A tractable conjugate system is established using a von Mises distribution. Its shaping p...
Anthony Quinn, Jean-Pierre Barbot, Pascal Larzabal
ICASSP
2011
IEEE
14 years 10 months ago
Fourier expansion of hammerstein models for nonlinear acoustic system identification
We consider the task of acoustic system identification, where the input signal undergoes a memoryless nonlinear transformation before convolving with an unknown linear system. We...
Sarmad Malik, Gerald Enzner