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TMI
2002
113views more  TMI 2002»
13 years 4 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
13 years 8 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 2 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
13 years 10 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 6 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...