Sciweavers

ICASSP
2011
IEEE
13 years 3 months ago
On the improvement of image registration for high accuracy super-resolution
Accurate image registration plays a preponderant role in image super-resolution methods and in the related literature landmarkbased registration methods have gained increasing acc...
Michalis Vrigkas, Christophoros Nikou, Lisimachos ...
ICASSP
2011
IEEE
13 years 3 months ago
Zero-forcing and MMSE filters design on the 2-sphere
We design a zero-forcing filter and a minimum mean square error (MMSE) filter on the 2-sphere by a spherical harmonic multiplication operator. Compared with the traditional opti...
Liying Wei, Rodney A. Kennedy
ICASSP
2011
IEEE
13 years 3 months ago
Combining HMM-based melody extraction and NMF-based soft masking for separating voice and accompaniment from monaural audio
Modern monaural voice and accompaniment separation systems usually consist of two main modules: melody extraction and timefrequency masking. A main distinction between different s...
Yun Wang, Zhijian Ou
ICASSP
2011
IEEE
13 years 3 months ago
Sentence level emotion recognition based on decisions from subsentence segments
Emotion recognition from speech plays an important role in developing affective and intelligent systems. This study investigates sentence-level emotion recognition. We propose to ...
Je Hun Jeon, Rui Xia, Yang Liu
ICASSP
2011
IEEE
13 years 3 months ago
Maximum a posteriori based regularization parameter selection
The 1 norm regularized least square technique has been proposed as an efficient method to calculate sparse solutions. However, the choice of the regularization parameter is still...
Ashkan Panahi, Mats Viberg
ICASSP
2011
IEEE
13 years 3 months ago
A reweighted least squares algorithm for detection of QAM signaling in MIMO channels
This paper proposes a reweighted least squares algorithm for quadrature amplitude modulation (QAM) detector in multiple-input multiple-output (MIMO) channels. Although the QAM det...
Katsumi Konishi, Toshihiro Furukawa
ICASSP
2011
IEEE
13 years 3 months ago
Speaker and noise factorisation on the AURORA4 task
For many realistic scenarios, there are multiple factors that affect the clean speech signal. In this work approaches to handling two such factors, speaker and background noise di...
Yongqiang Wang, Mark J. F. Gales
ICASSP
2011
IEEE
13 years 3 months ago
cROVER: Improving ROVER using automatic error detection
Recognizer Output Voting Error Reduction (ROVER), is a well-known procedure for decoders’ combination aiming at reducing the Word Error Rate (WER) in transcription applications....
Kacem Abida, Fakhri Karray, Wafa Abida
ICASSP
2011
IEEE
13 years 3 months ago
Supervised nonlinear spectral unmixing using a polynomial post nonlinear model for hyperspectral imagery
This paper studies a hierarchical Bayesian model for nonlinear hyperspectral image unmixing. The proposed model assumes that the pixel reflectances are polynomial functions of li...
Yoann Altmann, Abderrahim Halimi, Nicolas Dobigeon...
ICASSP
2011
IEEE
13 years 3 months ago
Classifier subset selection and fusion for speaker verification
State-of-the-art speaker verification systems consists of a number of complementary subsystems whose outputs are fused, to arrive at more accurate and reliable verification deci...
Filip Sedlak, Tomi Kinnunen, Ville Hautamäki,...