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ISBI
2008
IEEE
14 years 1 months ago
Comparative assessment of different energy mapping methods for generation of 511-keV attenuation map from CT images in PET/CT sy
The use of X-ray CT images for CT-based attenuation correction (CTAC) of PET data results in the decrease of overall scanning time and creates a noise-free attenuation map (μmap)...
Maryam Shirmohammad, Mohammad Reza Ay, Saeed Sarka...
ISPW
2006
IEEE
14 years 1 months ago
Spiral Lifecycle Increment Modeling for New Hybrid Processes
The spiral lifecycle is being extended to address new challenges for Software-Intensive Systems of Systems (SISOS), such as coping with rapid change while simultaneously assuring h...
Raymond J. Madachy, Barry W. Boehm, Jo Ann Lane
AAAI
1990
13 years 8 months ago
An Approach to Reasoning About Continuous Change for Applications in Planning
There are many planning applications that require an agent to coordinate its activities with processes that change continuously over time. Several proposals have been made for com...
Thomas Dean, Greg Siegle
ICPR
2010
IEEE
14 years 2 months ago
Effective Structure-From-Motion for Hybrid Camera Systems
—We describe a pipeline for structure-from-motion with mixed camera types, namely omnidirectional and perspective cameras. The steps of the pipeline can be summarized as calibrat...
Yalin Bastanlar, Alptekin Temizel, Yasemin Yardimc...
CHI
2003
ACM
14 years 7 months ago
Lessons from the lighthouse: collaboration in a shared mixed reality system
Museums attract increasing numbers of online visitors along with their conventional physical visitors. This paper presents a study of a mixed reality system that allows web, virtu...
Barry Brown, Ian MacColl, Matthew Chalmers, Areti ...