ICASSP
2008
IEEE
13 years 11 months ago
2008
IEEE
We consider the problem of optimizing the parameters of an arbitrary denoising algorithm by minimizing Stein’s Unbiased Risk Estimate (SURE) which provides a means of assessing ...
ICASSP
2008
IEEE
13 years 11 months ago
2008
IEEE
Clustering-based approaches for abnormal video event detection have been proven to be effective in the recent literature. Based on the framework proposed in our previous work [1],...
ICASSP
2008
IEEE
13 years 11 months ago
2008
IEEE
We consider the problem of planar object registration on binary images where the aligning transformation is restricted to the group of affine transformations. Previous approaches...
ICASSP
2008
IEEE
13 years 11 months ago
2008
IEEE
In this paper we introduce a new watermarking model combining a joint time frequency (TF) representation using the molecular matching pursuit (MMP) algorithm and a psychoacoustic ...
ICASSP
2008
IEEE
13 years 11 months ago
2008
IEEE
Independent component analysis (ICA) for convolutive mixtures is often applied in the frequency domain due to the desirable decoupling into independent instantaneous mixtures per ...
ICASSP
2008
IEEE
13 years 11 months ago
2008
IEEE
We propose in this paper a robust multi-resolution technique to estimate dense velocity field from image sequences. It couples a Gaussian pyramidal down-sampling decomposition to...
ICASSP
2008
IEEE
13 years 11 months ago
2008
IEEE
In this paper we propose novel algorithms for image restoration and parameter estimation with a Generalized Gaussian Markov Random Field prior utilizing variational distribution a...
ICASSP
2008
IEEE
13 years 11 months ago
2008
IEEE
Independent component analysis (ICA) is a popular approach for blind source separation (BSS). In this study, we develop a new mutual information measure for BSS and unsupervised l...
ICASSP
2008
IEEE
13 years 11 months ago
2008
IEEE
From an audio perspective, the present state of teleconferencing technology leaves something to be desired; speaker overlap is one of the causes of this inadequate performance. To...
ICASSP
2008
IEEE
13 years 11 months ago
2008
IEEE
We propose a new approach to underdetermined Blind Source Separation (BSS) using sparse decomposition over monochannel dictionary atoms and compare it to multichannel dictionary a...