Group action induced averaging for HARDI processing

Cetingul, H. Ertan, Afsari, Bijan, Wright, Margaret J., Thompson, Paul M. and Vidal, Rene (2012). Group action induced averaging for HARDI processing. In: 2012 9th IEEE International Symposium on Biomedical Imaging : From Nano to Macro : proceedings. 9th IEEE International Symposium on Biomedical Imaging: From Nano to Macro, ISBI 2012, Barcelona, Spain, (1389-1392). 2 - 5 May 2012. doi:10.1109/ISBI.2012.6235827


Author Cetingul, H. Ertan
Afsari, Bijan
Wright, Margaret J.
Thompson, Paul M.
Vidal, Rene
Title of paper Group action induced averaging for HARDI processing
Conference name 9th IEEE International Symposium on Biomedical Imaging: From Nano to Macro, ISBI 2012
Conference location Barcelona, Spain
Conference dates 2 - 5 May 2012
Proceedings title 2012 9th IEEE International Symposium on Biomedical Imaging : From Nano to Macro : proceedings   Check publisher's open access policy
Journal name International Symposium on Biomedical Imaging. Proceedings   Check publisher's open access policy
Place of Publication Piscataway, NJ United States
Publisher I E E E
Publication Year 2012
Year available 2012
Sub-type Fully published paper
DOI 10.1109/ISBI.2012.6235827
ISBN 9781457718588
9781457718571
ISSN 1945-7928
Start page 1389
End page 1392
Total pages 4
Collection year 2013
Language eng
Abstract/Summary We consider the problem of processing high angular resolution diffusion images described by orientation distribution functions (ODFs). Prior work showed that several processing operations, e.g., averaging, interpolation and filtering, can be reduced to averaging in the space of ODFs. However, this approach leads to anatomically erroneous results when the ODFs to be processed have very different orientations. To address this issue, we propose a group action induced distance for averaging ODFs, which leads to a novel processing framework on the spaces of orientation (the space of 3D rotations) and shape (the space of ODFs with the same orientation). Experiments demonstrate that our framework produces anatomically meaningful results.
Subjects 2204 Religion and Religious Studies
2741 Radiology Nuclear Medicine and imaging
Keyword Biomedical image processing
Diffusion magnetic resonance imaging
Information geometry
Riemannian manifolds
Q-Index Code E1
Q-Index Status Provisional Code
Institutional Status UQ

Document type: Conference Paper
Collection: School of Psychology Publications
 
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