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ICASSP
2009
IEEE
14 years 2 months ago
Robust speech dereverberation based on non-negativity and sparse nature of speech spectrograms
This paper presents a blind dereverberation method designed to recover the subband envelope of an original speech signal from its reverberant version. The problem is formulated as...
Hirokazu Kameoka, Tomohiro Nakatani, Takuya Yoshio...
ICASSP
2009
IEEE
14 years 2 months ago
Flatbed scanner identification based on dust and scratches over scanner platen
In this paper, a novel individual source scanner identification scheme is proposed. The scheme uses traces of dust, dirt, and scratches over scanner platen on scanned images to c...
Ahmet Emir Dirik, Husrev T. Sencar, Nasir D. Memon
ICASSP
2009
IEEE
14 years 2 months ago
Estimating multiple transmitter locations from power measurements at multiple receivers
We consider the estimation of the locations of multiple transmitters based on received signal strength measurements at a network of randomly-placed receivers. We generalize the ex...
Jill K. Nelson, Jaime E. Almodovar, Maya R. Gupta,...
ICASSP
2009
IEEE
14 years 2 months ago
WEB-derived pronunciations
Pronunciation information is available in large quantities on the Web, in the form of IPA and ad-hoc transcriptions. We describe techniques for extracting candidate pronunciations...
Arnab Ghoshal, Martin Jansche, Sanjeev Khudanpur, ...
ICASSP
2009
IEEE
14 years 2 months ago
On the effect of transmitter IQ imbalance at OFDMA receivers
One limiting issue in implementing high-speed wireless systems is the impairment associated with analog processing due to component imperfections. In uplink transmission of multiu...
Yuki Yoshida, Kazunori Hayashi, Hideaki Sakai