Sciweavers

ICASSP
2011
IEEE
12 years 11 months ago
No-reference bit stream model for video quality assessment of h.264/AVC video based on packet loss visibility
In this paper, a no reference bit stream model for quality assessment of SD and HD H.264/AVC video sequences based on packet loss visibility is proposed. The method considers the ...
Savvas Argyropoulos, Alexander Raake, Marie-Neige ...
ICASSP
2011
IEEE
12 years 11 months ago
A method to infer emotions from facial Action Units
We present a robust method to map detected facial Action Units (AUs) to six basic emotions. Automatic AU recognition is prone to errors due to illumination, tracking failures and ...
Sudha Velusamy, Hariprasad Kannan, Balasubramanian...
ICASSP
2011
IEEE
12 years 11 months ago
High dynamic range (HDR) imaging by gradient domain fusion
This paper proposes a new HDR imaging method in the gradient domain based on the fusion of two images with different exposure. We first formulate an energy function for the binar...
Jung Gap Kuk, Nam Ik Cho, Sang Uk Lee
ICASSP
2011
IEEE
12 years 11 months ago
Variational Bayesian Kalman filtering in dynamical tomography
The problem of dynamical tomography consists in reconstructing a temporal sequence of images from their noisy projections. For this purpose, a recursive algorithm is usually used,...
Boujemaa Ait-El-Fquih, Thomas Rodet
ICASSP
2011
IEEE
12 years 11 months ago
Epileptic seizure prediction using the spatiotemporal correlation structure of intracranial EEG
A patient-specific seizure prediction algorithm is proposed that extracts novel multivariate signal coherence features from ECoG recordings and classifies a patient’s pre-seiz...
James R. Williamson, Daniel W. Bliss, David W. Bro...
ICASSP
2011
IEEE
12 years 11 months ago
Audio watermarking for acoustic propagation in reverberant environments
Digital audio watermarking has received increasing interest in the last years due to the wide range of applications it can be used for. This contribution presents a novel blind wa...
Giovanni Del Galdo, Juliane Borsum, Tobias Bliem, ...
ICASSP
2011
IEEE
12 years 11 months ago
A time-warping framework for speech turbulence-noise component estimation during aperiodic phonation
The accurate estimation of turbulence noise affects many areas of speech processing including separate modification of the noise component, analysis of degree of speech aspiration...
Nicolas Malyska, Thomas F. Quatieri
ICASSP
2011
IEEE
12 years 11 months ago
Multiple-channel detection of a Gaussian time series over frequency-flat channels
This work addresses the problem of deciding whether a set of realizations of a vector-valued time series with unknown temporal correlation are spatially correlated or not. Speci...
David Ramírez, Javier Vía, Ignacio S...
TVLSI
2010
13 years 2 months ago
Computation Error Analysis in Digital Signal Processing Systems With Overscaled Supply Voltage
It has been recently demonstrated that digital signal processing systems may possibly leverage unconventional voltage overscaling (VOS) to reduce energy consumption while maintaini...
Yang Liu, Tong Zhang, Keshab K. Parhi
TSP
2010
13 years 2 months ago
Algebraic signal processing theory: sampling for infinite and finite 1-D space
We derive a signal processing framework, called space signal processing, that parallels time signal processing. As such, it comes in four versions (continuous/discrete, infinite/fi...
Jelena Kovacevic, Markus Püschel