ICASSP
2011
IEEE
13 years 2 months ago
2011
IEEE
A discretized version of a continuous optimization problem is considered for the case where data is obtained from a set of dispersed sensor nodes and the overall metric is a sum o...
ICASSP
2011
IEEE
13 years 2 months ago
2011
IEEE
This paper deals with the problem of finding the optimal sequence of sub-word unit HMMs for a number of given utterances of a word. For this problem we present a new solution bas...
ICASSP
2011
IEEE
13 years 2 months ago
2011
IEEE
This paper applies affinity propagation (AP) to develop distributed solutions for routing over networks. AP is a message passing algorithm for unsupervised learning. This paper d...
ICASSP
2011
IEEE
13 years 2 months ago
2011
IEEE
We significantly improve the computational efficiency of a probabilistic approach for multiple pitch tracking. This method is based on a factorial hidden Markov model and two al...
ICASSP
2011
IEEE
13 years 2 months ago
2011
IEEE
Perceptual image quality assessment (IQA) and sparse signal representation have recently emerged as high-impact research topics in the field of image processing. Here we make one...
ICASSP
2011
IEEE
13 years 2 months ago
2011
IEEE
Digital filters with adjustable bandwidth(s) are generally desirable in many applications like audio processing and telecommunication. This paper proposes a generalized Farrow st...
ICASSP
2011
IEEE
13 years 2 months ago
2011
IEEE
The maximization of a positive (semi)definite complex quadratic form over a finite alphabet is NP-hard and achieved through exhaustive search when the form has full rank. Howeve...
ICASSP
2011
IEEE
13 years 2 months ago
2011
IEEE
In this work a new adaptive fast variational sparse Bayesian learning (V-SBL) algorithm is proposed that is a variational counterpart of the fast marginal likelihood maximization ...
ICASSP
2011
IEEE
2011
IEEE
Joint estimation of channel and carrier frequency offset from the emitter, in an uplink OFDMA system
13 years 2 months ago
In this paper, we propose a joint estimation method of carrier frequency offsets (CFO) and channel impulse responses (CIR) for an uplink OFDMA system. We consider the CFOs come in...
ICASSP
2011
IEEE
13 years 2 months ago
2011
IEEE
Metal and beam-hardening artifacts are tough issues in Computed Tomography (CT) images. This paper proposes an iterative Maximum A Posteriori (MAP) reconstruction algorithm aiming...