Sciweavers

ICA
2007
Springer
14 years 5 months ago
Dictionary Learning for L1-Exact Sparse Coding
We have derived a new algorithm for dictionary learning for sparse coding in the ℓ1 exact sparse framework. The algorithm does not rely on an approximation residual to operate, b...
Mark D. Plumbley
ICASSP
2007
IEEE
14 years 5 months ago
Spatial Mixture Modelling for the Joint Detection-Estimation of Brain Activity in fMRI
— Within-subject analysis in event-related functional Magnetic Resonance Imaging (fMRI) first relies on (i) a detection step to localize which parts of the brain are activated b...
Thomas Vincent, Philippe Ciuciu, Jérô...
ICASSP
2007
IEEE
14 years 5 months ago
Breaking the Limitation of Manifold Analysis for Super-Resolution of Facial Images
A novel method for robust super-resolution offace images is proposed in this paper. Face super-resolution is a particular interest in video surveillance where face images have typ...
Sung Won Park, Marios Savvides
ICASSP
2007
IEEE
14 years 6 months ago
The Biosecure Geometry-Based System for Hand Modality
We present an identification and authentication system based on hand modality which is part of a reference system for all modalities developed within the Biosecure consortium. It...
Geoffroy Fouquier, Laurence Likforman-Sulem, J&eac...
ICASSP
2007
IEEE
14 years 6 months ago
Distributed Coding of Shifts using the DFT Phase
In this paper we consider the problem of image encoding with side information at the decoder, where the side information is an integer shifted version of the image at the encoder....
Marco Dalai, Riccardo Leonardi, Pier Luigi Dragott...
ICASSP
2007
IEEE
14 years 6 months ago
Eigentongue Feature Extraction for an Ultrasound-Based Silent Speech Interface
The article compares two approaches to the description of ultrasound vocal tract images for application in a “silent speech interface,” one based on tongue contour modeling, a...
Thomas Hueber, Guido Aversano, Gérard Choll...
ICASSP
2007
IEEE
14 years 6 months ago
False Positive Reduction in Lung GGO Nodule Detection with 3D Volume Shape Descriptor
Lung nodule detection, especially ground glass opacity (GGO) detection, in helical computed tomography (CT) images is a challenging Computer-Aided Detection (CAD) task due to the ...
Ming Yang, Senthil Periaswamy, Ying Wu
ICASSP
2007
IEEE
14 years 6 months ago
Fundamental Detection and Estimation Limits in Spike Sorting
Spike sorting refers to the detection and classification of electric potentials (spikes) from multi-neuron recordings, a difficult but essential pre-processing step before neura...
Mona A. Sheikh, Don H. Johnson
ICASSP
2007
IEEE
14 years 6 months ago
Adaptive Filtering for Video Coding with Focus Change
We propose an adaptive ltering approach for coding video that exhibits localized camera focus changes, e.g., such that different portions of a video frame can undergo different bl...
PoLin Lai, Yeping Su, Peng Yin, Cristina Gomila, A...
ICASSP
2007
IEEE
14 years 6 months ago
Markov Random Field Energy Minimization via Iterated Cross Entropy with Partition Strategy
This paper introduces a novel energy minimization method, namely iterated cross entropy with partition strategy (ICEPS), into the Markov random field theory. The solver, which is...
Jue Wu, Albert C. S. Chung