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Detecting branching structures using local gaussian models
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Li, Wang and Bhalerao, Abhir (2002) Detecting branching structures using local gaussian models. In: IEEE International Symposium on Biomedical Imaging, Washington, D.C., 07-10 Jul 2002. Published in: 2002 IEEE International Symposium on Biomedical Imaging, 2002. Proceedings. pp. 161-164. ISBN 078037584X.
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Official URL: http://dx.doi.org/10.1109/ISBI.2002.1029218
Abstract
We present a method for modelling and estimating branching structures, such as blood vessel bifurcations, from medical images. Branches are modelled as a superposition of Gaussian functions in a local region which describe the amplitude, position and orientations of intersecting linear features. The centroids of component features are separated by applying K-means to the local Fourier phase and the covariances and amplitudes subsequently estimated by a likelihood maximisation. We employ a penalised likelihood test (AIC) to select the best fit model in a region. Results are presented on synthetic and representative 2D retinal images which show the estimation to be robust and accurate in the presence of noise. We compare our results with a curvature scale-space operator method.
Item Type: | Conference Item (Paper) | ||||
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Subjects: | R Medicine T Technology > TK Electrical engineering. Electronics Nuclear engineering |
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Divisions: | Faculty of Science, Engineering and Medicine > Science > Computer Science | ||||
Journal or Publication Title: | 2002 IEEE International Symposium on Biomedical Imaging, 2002. Proceedings. | ||||
Publisher: | IEEE | ||||
ISBN: | 078037584X | ||||
Official Date: | 2002 | ||||
Dates: |
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Number of Pages: | 4 | ||||
Page Range: | pp. 161-164 | ||||
Status: | Peer Reviewed | ||||
Publication Status: | Published | ||||
Access rights to Published version: | Restricted or Subscription Access | ||||
Conference Paper Type: | Paper | ||||
Title of Event: | IEEE International Symposium on Biomedical Imaging | ||||
Type of Event: | Other | ||||
Location of Event: | Washington, D.C. | ||||
Date(s) of Event: | 07-10 Jul 2002 |
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