5 search results - page 1 / 1 » Arrival Rate Approximation by Nonnegative Cubic Splines |
IOR
2008
13 years 11 months ago
2008
Estimating the arrival rate function of a non-homogeneous Poisson process based on observed arrival data is a problem naturally arising in many applications. Cubic spline function...
TMI
2002
13 years 10 months ago
2002
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 ...
IPMI
1999
Springer
14 years 11 months ago
1999
Springer
Abstract. We describe a method for computing a continuous time estimate of dynamic changes in tracer density using list mode PET data. The tracer density in each voxel is modeled a...
ICIP
1998
IEEE
15 years 11 days ago
1998
IEEE
This paper describes e cient and optimal encoding and representation of object contours. Contours are approximated by connected second-order spline segments, each de ned by three ...
CIVR
2005
Springer
14 years 4 months ago
2005
Springer
Abstract. We introduce a view–point invariant representation of moving object trajectories that can be used in video database applications. It is assumed that trajectories lie on...