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ICIP
1999
IEEE

Uncertainties in Bayesian Geometric Models

10 years 26 days ago
Uncertainties in Bayesian Geometric Models
Deformable geometric models fit very naturally into the context of Bayesian analysis. The prior probability of boundary shapes is taken to proportional to the negative exponential of the deformation energy used to control the boundary. This probabilistic interpretation is demonstrated using a Markov-Chain Monte-Carlo (MCMC) technique, which permits one to generate configurations that populate the prior. One of many uses for deformable models is to solve illposed tomographic reconstruction problems, which we demonstrate by reconstructing a two-dimensional object from two orthogonal noisy projections. We show how MCMC samples drawn from the posterior can be used to estimate uncertainties in the location of the edge of the reconstructed object.
Kenneth M. Hanson, Gregory S. Cunningham, Robert J
Added 25 Oct 2009
Updated 26 Oct 2009
Type Conference
Year 1999
Where ICIP
Authors Kenneth M. Hanson, Gregory S. Cunningham, Robert J. McKee
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