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Volumetric Texture Segmentation by Discriminant Feature Selection and Multiresolution Classification
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posted on 2023-06-08, 09:01 authored by Constantino C Reyes Aldasoro, A BhaleraoIn this paper, a multiresolution volumetric texture segmentation (M-VTS) algorithm is presented. The method extracts textural measurements from the Fourier domain of the data via subband filtering using an orientation pyramid (Wilson and Spann, 1988). A novel Bhattacharyya space, based on the Bhattacharyya distance, is proposed for selecting the most discriminant measurements and producing a compact feature space. An oct tree is built of the multivariate features space and a chosen level at a lower spatial resolution is first classified. The classified voxel labels are then projected to lower levels of the tree where a boundary refinement procedure is performed with a three-dimensional (3-D) equivalent of butterfly filters. The algorithm was tested with 3-D artificial data and three magnetic resonance imaging sets of human knees with encouraging results. The regions segmented from the knees correspond to anatomical structures that can be used as a starting point for other measurements such as cartilage extraction.
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Publication status
- Published
Journal
IEEE Transactions on Medical ImagingISSN
0278-0062Publisher
Institute of Electrical and Electronics EngineersIssue
1Volume
26Page range
1-14Department affiliated with
- Engineering and Design Publications
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- No
Peer reviewed?
- Yes
Legacy Posted Date
2012-02-06Usage metrics
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