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ICASSP
2009
IEEE
15 years 10 months ago
Chirp rate estimation of speech based on a time-varying quasi-harmonic model
The speech signal is usually considered as stationary during short analysis time intervals. Though this assumption may be sufficient in some applications, it is not valid for high...
Yannis Pantazis, Olivier Rosec, Yannis Stylianou
GLOBECOM
2009
IEEE
15 years 10 months ago
A Mobicast Routing Protocol in Vehicular Ad-Hoc Networks
In this paper, we present a spatiotemporal multicast , called a mobicast, protocol for supporting applications which require spatiotemporal coordination in VANETs. The spatiotempor...
Yuh-Shyan Chen, Yun-Wei Lin, Sing-Ling Lee
CSE
2009
IEEE
15 years 10 months ago
Completely Distributed Low Duty Cycle Communication for Long-Living Sensor Networks
A lifetime of several years for wireless sensor nodes can be achieved if their activity period is minimized. This can be done by using low duty cycle protocols. One of the challeng...
Marcin Brzozowski, Hendrik Salomon, Peter Langendo...
ACCV
2009
Springer
15 years 10 months ago
Image Enhancement of Low-Light Scenes with Near-Infrared Flash Images
Abstract. We present a novel technique for enhancing an image captured in low light by using near-infrared flash images. The main idea is to combine a color image with near-infrar...
Sosuke Matsui, Takahiro Okabe, Mihoko Shimano, Yoi...
EDBT
2009
ACM
117views Database» more  EDBT 2009»
15 years 10 months ago
Parsimonious temporal aggregation
Temporal aggregation is a crucial operator in temporal databases and has been studied in various flavors. In instant temporal aggregation (ITA) the aggregate value at time instan...
Juozas Gordevicius, Johann Gamper, Michael H. B&ou...