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Type of publication:	Artikel in einem Konferenzbericht
Buchtitel:	MICCAI 2007, Part II
Serie:	Lecture Notes in Computer Science
Band:	4792
Jahr:	2007
Monat:	November
Seiten:	668--675
Verlag:	Springer
Ort:	Brisbane, Australia
Organisation:	MICCAI
Notiz:	Motion Compensation in Radiosurgery
Querverweis:	MICCAI07: International Conference on Medical Image Computing and Computer Assisted Intervention ({MICCAI}), Ayache, Nicholas, Ourselin, S. und Maeder, A. (Hrsg.), 2007
DOI:	10.1007/978-3-540-75759-7\_81
Abriss:	In robotic radiosurgery, a photon beam source, moved by a robot arm, is used to ablate tumors. The accuracy of the treatment can be improved by predicting respiratory motion to compensate for system delay. We extend the wavelet-based multiscale autoregressive prediction algorithm by introducing a new exponential averaging parameter and the use of the Moore-Penrose pseudo inverse to cope with long-term signal dependencies and system matrix irregularity, respectively. In test cases, this new algorithm outperforms normalized LMS predictors by as much as 50%. In settings with real data, we achieve an improvement around 5-10%.
Nutzerfelder:	owner={ernst}, timestamp={2007.03.30}, file={ess_07.pdf:ess_07.pdf:PDF}
Schlagworte:
Autoren:	Ernst, Floris Schlaefer, Alexander Schweikard, Achim
Herausgeber:	Ayache, Nicholas Ourselin, S. Maeder, A.
Anhänge
ess_07.pdf
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