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» Optimal nonlinear estimation of photon coordinates in PET
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ISBI
2002
IEEE
14 years 5 months ago
Optimal nonlinear estimation of photon coordinates in PET
We consider detection of high-energy photons in PET using thick scintillation crystals. Parallax effect and multiple Compton interactions in this type of crystals significantly re...
Alexander M. Bronstein, Michael M. Bronstein, Mich...
TIT
2002
99views more  TIT 2002»
13 years 4 months ago
Poisson intensity estimation for tomographic data using a wavelet shrinkage approach
We consider a two-dimensional problem of positron emission tomography where the random mechanism of the generation of the tomographic data is modeled by Poisson processes. The goa...
L. Cavalier, Ja-Yong Koo
TIP
1998
99views more  TIP 1998»
13 years 4 months ago
Nonlinear image estimation using piecewise and local image models
—We introduce a new approach to image estimation based on a flexible constraint framework that encapsulates meaningful structural image assumptions. Piecewise image models (PIMâ...
Scott T. Acton, Alan C. Bovik
JMIV
2010
106views more  JMIV 2010»
12 years 11 months ago
Parametric Estimation of Affine Transformations: An Exact Linear Solution
Abstract We consider the problem of estimating the geometric deformation of an object, with respect to some reference observation on it. Existing solutions, set in the standard coo...
Rami Hagege, Joseph M. Francos
ICCV
2007
IEEE
13 years 11 months ago
Monocular SLAM as a Graph of Coalesced Observations
We present a monocular SLAM system that avoids inconsistency by coalescing observations into independent local coordinate frames, building a graph of the local frames, and optimiz...
Ethan Eade, Tom Drummond