Math @ Duke

Publications [#265066] of Guillermo Sapiro
Papers Published
 Caruyer, E; Aganj, I; Muetzel, RL; Lenglet, C; Sapiro, G; Deriche, R, Online orientation distribution function reconstrugtion in constant solid angle and its application to motion detection in HARDI,
2010 7th IEEE International Symposium on Biomedical Imaging: From Nano to Macro, ISBI 2010  Proceedings
(2010),
pp. 812815 [doi]
(last updated on 2018/08/19)
Abstract: The diffusion orientation distribution function (ODF) can be reconstructed from qball imaging (QBI) to map the complex intravoxel structure of water diffusion. As acquisition time is particularly large for high angular resolution diffusion imaging (HARDI), fast estimation algorithms have recently been proposed, as an online feedback on the reconstruction accuracy. Thus the acquisition could be stopped or continued on demand. We adapt these realtime algorithms to the mathematically correct definition of ODF in constant solid angle (CSA), and develop a motion detection algorithm upon this reconstruction. Results of improved fiber crossing detection by CSA ODF are shown, and motion detection was implemented and tested in vivo. © 2010 IEEE.


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