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ICASSP
2011
IEEE
14 years 10 months ago
Decision tree-based context clustering based on cross validation and hierarchical priors
The standard, ad-hoc stopping criteria used in decision tree-based context clustering are known to be sub-optimal and require parameters to be tuned. This paper proposes a new app...
Heiga Zen, Mark J. F. Gales
ICASSP
2011
IEEE
14 years 10 months ago
A novel multi-band spectral subtraction method based on phase modification and magnitude compensation
The spectral subtraction method is historically one of the first algorithms proposed for noise reduction. However, most implementations and variations of the basic technique cann...
Chao Li, Wen-Ju Liu
ICASSP
2011
IEEE
14 years 10 months ago
Evolutive method based on a generalized eigenvalue decomposition to estimate time varying autoregressive parameters from noisy o
A great deal of interest has been paid to the estimation of time-varying autoregressive (TVAR) parameters. However, when the observations are disturbed by an additive white measur...
Hiroshi Ijima, Julien Petitjean, Eric Grivel
ICASSP
2011
IEEE
14 years 10 months ago
Continuous pilot based adaptive estimation for IDMA systems on underwater acoustic channels
Two adaptive receivers for jointly detecting active users in an interleave division multiple access (IDMA) system are considered for highly dispersive underwater acoustic channels...
Salah Aliesawi, Charalampos C. Tsimenidis, Bayan S...
CCBR
2011
116views more  CCBR 2011»
14 years 6 months ago
Iterative Directional Ray-Based Iris Segmentation for Challenging Periocular Images
The face region immediately surrounding one, or both, eyes is called the periocular region. This paper presents an iris segmentation algorithm for challenging periocular images bas...
Xiaofei Hu, V. Paúl Pauca, Robert J. Plemmo...