Abstract
The orientation distribution function (ODF) can be reconstructed online incrementally from diffusion-weighted MRI with a Kalman filtering framework. This online reconstruction can provide real-time feedback to the practitioner, especially appreciated for long acquisition protocols typical in Q-ball imaging. On top of the Kalman filter, we propose a method to evaluate online the reconstruction accuracy of the estimated ODF in constant solid angle. In addition, monitoring the residuals of the Kalman filter, we design, based on statistical tests, two algorithms for online detection of subject motion. The proposed techniques, tested on real and synthetic data under various experimental conditions, can detect rotation by angle less than 3.
| Original language | English (US) |
|---|---|
| Title of host publication | 2011 8th IEEE International Symposium on Biomedical Imaging |
| Subtitle of host publication | From Nano to Macro, ISBI'11 |
| Pages | 516-519 |
| Number of pages | 4 |
| DOIs | |
| State | Published - Nov 2 2011 |
| Event | 2011 8th IEEE International Symposium on Biomedical Imaging: From Nano to Macro, ISBI'11 - Chicago, IL, United States Duration: Mar 30 2011 → Apr 2 2011 |
Publication series
| Name | Proceedings - International Symposium on Biomedical Imaging |
|---|---|
| ISSN (Print) | 1945-7928 |
| ISSN (Electronic) | 1945-8452 |
Other
| Other | 2011 8th IEEE International Symposium on Biomedical Imaging: From Nano to Macro, ISBI'11 |
|---|---|
| Country | United States |
| City | Chicago, IL |
| Period | 3/30/11 → 4/2/11 |
Fingerprint
Keywords
- Q-ball imaging (qbi)
- error propagation
- motion estimation
- online model estimation
- orientation distribution function (odf)
Cite this
Online motion detection in high angular resolution diffusion imaging. / Caruyer, Emmanuel; Aganj, Iman; Lenglet, Christophe; Sapiro, Guillermo; Deriche, Rachid.
2011 8th IEEE International Symposium on Biomedical Imaging: From Nano to Macro, ISBI'11. 2011. p. 516-519 5872458 (Proceedings - International Symposium on Biomedical Imaging).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Online motion detection in high angular resolution diffusion imaging
AU - Caruyer, Emmanuel
AU - Aganj, Iman
AU - Lenglet, Christophe
AU - Sapiro, Guillermo
AU - Deriche, Rachid
PY - 2011/11/2
Y1 - 2011/11/2
N2 - The orientation distribution function (ODF) can be reconstructed online incrementally from diffusion-weighted MRI with a Kalman filtering framework. This online reconstruction can provide real-time feedback to the practitioner, especially appreciated for long acquisition protocols typical in Q-ball imaging. On top of the Kalman filter, we propose a method to evaluate online the reconstruction accuracy of the estimated ODF in constant solid angle. In addition, monitoring the residuals of the Kalman filter, we design, based on statistical tests, two algorithms for online detection of subject motion. The proposed techniques, tested on real and synthetic data under various experimental conditions, can detect rotation by angle less than 3.
AB - The orientation distribution function (ODF) can be reconstructed online incrementally from diffusion-weighted MRI with a Kalman filtering framework. This online reconstruction can provide real-time feedback to the practitioner, especially appreciated for long acquisition protocols typical in Q-ball imaging. On top of the Kalman filter, we propose a method to evaluate online the reconstruction accuracy of the estimated ODF in constant solid angle. In addition, monitoring the residuals of the Kalman filter, we design, based on statistical tests, two algorithms for online detection of subject motion. The proposed techniques, tested on real and synthetic data under various experimental conditions, can detect rotation by angle less than 3.
KW - Q-ball imaging (qbi)
KW - error propagation
KW - motion estimation
KW - online model estimation
KW - orientation distribution function (odf)
UR - http://www.scopus.com/inward/record.url?scp=80055045794&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=80055045794&partnerID=8YFLogxK
U2 - 10.1109/ISBI.2011.5872458
DO - 10.1109/ISBI.2011.5872458
M3 - Conference contribution
SN - 9781424441280
T3 - Proceedings - International Symposium on Biomedical Imaging
SP - 516
EP - 519
BT - 2011 8th IEEE International Symposium on Biomedical Imaging
ER -