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TMI
2002
113views more  TMI 2002»
13 years 9 months ago
Spatiotemporal reconstruction of list mode PET data
We describe a method for computing a continuous time estimate of tracer density using list-mode positron emission tomography data. The rate function in each voxel is modeled as an ...
Thomas E. Nichols, Jinyi Qi, Evren Asma, Richard M...
ANSS
2004
IEEE
14 years 1 months ago
A Spatial Analysis of Mobility Models: Application to Wireless Ad Hoc Network Simulation
We quantatively analyze the differences between a realistic mobility model, TRANSIMS, and several synthetic mobility models. New synthetic models were created by modifying the sta...
D. Charles Engelhart, Anand Sivasubramaniam, Chris...
ICDCS
2009
IEEE
14 years 6 months ago
Distributed Processing of Spatial Alarms: A Safe Region-Based Approach
Spatial alarms are considered as one of the basic capabilities in future mobile computing systems for enabling personalization of location-based services. In this paper, we propos...
Bhuvan Bamba, Ling Liu, Arun Iyengar, Philip S. Yu
ANSS
2005
IEEE
14 years 3 months ago
Mobility Modeling of Outdoor Scenarios for MANETs
Mobility of users significantly impacts performance of a mobile ad-hoc network. Most existing simulation tools offer only a few random mobility models, which poorly reflect user m...
Illya Stepanov, Pedro José Marrón, K...
ICIP
2006
IEEE
14 years 11 months ago
Denoising Archival Films using a Learned Bayesian Model
We develop a Bayesian model of digitized archival films and use this for denoising, or more specifically de-graining, individual frames. In contrast to previous approaches our mod...
Teodor Mihai Moldovan, Stefan Roth, Michael J. Bla...