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IJCV
2010
206views more  IJCV 2010»
15 years 5 months ago
From Local Kernel to Nonlocal Multiple-Model Image Denoising
Abstract We review the evolution of the nonparametric regression modeling in imaging from the local Nadaraya-Watson kernel estimate to the nonlocal means and further to transform-d...
Vladimir Katkovnik, Alessandro Foi, Karen Egiazari...
ICASSP
2011
IEEE
14 years 10 months ago
Pitch transposition and breathiness modification using a glottal source model and its adapted vocal-tract filter
The transformation of the voiced segments of a speech recording has many applications such as expressivity synthesis or voice conversion. This paper addresses the pitch transposit...
Gilles Degottex, Axel Röbel, Xavier Rodet
ICASSP
2011
IEEE
14 years 10 months ago
Spectral-envelope and group-delay models for transient signals - Applications to castanets and stop consonants
We present a novel approach to represent transients using spectral-domain amplitude-modulated/frequency-modulated (AM-FM) functions. The model is applied to the real and imaginary...
Ravi R. Shenoy, Chandra Sekhar Seelamantula
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
CVPR
2003
IEEE
16 years 8 months ago
Video Segmentation Based on Graphical Models
This paper proposes a unified framework for spatiotemporal segmentation of video sequences. A Bayesian network is presented to model the interactions among the motion vector field...
Kia-Fock Loe, Tele Tan, Yang Wang 0002