Sciweavers

ICASSP
2010
IEEE
13 years 7 months ago
Matching canvas weave patterns from processing x-ray images of master paintings
Thread counting algorithms seek to determine from x-ray images the vertical and horizontal thread counts (frequencies) of the canvas weave comprising a painting’s support. Our s...
Don H. Johnson, Lucia Sun, C. Richard Johnson Jr.,...
ICASSP
2010
IEEE
13 years 7 months ago
Speech enhancement in transient noise environment using diffusion filtering
Recently, we have presented a transient noise reduction algorithm for speech signals that relies on non-local diffusion filtering. By exploiting the repetitive nature of transien...
Ronen Talmon, Israel Cohen, Sharon Gannot
ICASSP
2010
IEEE
13 years 7 months ago
Spatio-angular sharpening for multiview 3D displays
In this paper, we analyze the reproduction of light fields on multiview 3D displays. A two-way interaction between the input light field signal (which is often aliased) and the ...
Vikas Ramachandra, Keigo Hirakawa, Matthias Zwicke...
ICASSP
2010
IEEE
13 years 7 months ago
Multilingual acoustic modeling for speech recognition based on subspace Gaussian Mixture Models
Although research has previously been done on multilingual speech recognition, it has been found to be very difficult to improve over separately trained systems. The usual approa...
Lukas Burget, Petr Schwarz, Mohit Agarwal, Pinar A...
ICASSP
2010
IEEE
13 years 7 months ago
Particle filter adaptation for distributed sensors via set membership
A distributed set-membership-constrained particle filter (SMCPF) is developed for decentralized tracking applications using wireless sensor networks. Unlike existing PF alternati...
Shahrokh Farahmand, Stergios I. Roumeliotis, Georg...
ICASSP
2010
IEEE
13 years 7 months ago
Weakly supervised learning with decision trees applied to fisheries acoustics
This paper addresses the training of classification trees for weakly labelled data. We call ”weakly labelled data”, a training set such as the prior labelling information pro...
Riwal Lefort, Ronan Fablet, Jean-Marc Boucher
ICASSP
2010
IEEE
13 years 7 months ago
Music dereverberation using harmonic structure source model and Wiener filter
This paper proposes a dereverberation method for musical audio signals. Existing dereverberation methods are designed for speech signals and are not necessarily effective for supp...
Naoki Yasuraoka, Takuya Yoshioka, Tomohiro Nakatan...
ICASSP
2010
IEEE
13 years 7 months ago
Optimizing spectral subtraction and wiener filtering for robust speech recognition in reverberant and noisy conditions
Speech enhancement is a common approach to address the effects of degradation due to noise and channel contamination. This approach is intended to suppress unwanted signal and rec...
Randy Gomez, Tatsuya Kawahara
ICASSP
2010
IEEE
13 years 7 months ago
Direct importance estimation with probabilistic principal component analyzers
The importance estimation problem (estimating the ratio of two probability density functions) has recently gathered a great deal of attention for use in various applications, e.g....
Makoto Yamada, Masashi Sugiyama, Gordon Wichern
ICASSP
2010
IEEE
13 years 7 months ago
Bridge detection and robust geodesics estimation via random walks
We propose an algorithm for detecting bridges and estimating geodesic distances from a set of noisy samples of an underlying manifold. Finding geodesics on a nearest neighbors gra...
Eugene Brevdo, Peter J. Ramadge