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Abstract #3068

Robust and Fast Evaluation of Orbital Navigator Data for Rigid Body Motion Estimation

Tim Nielsen1, Peter Boernert1

1Philips Research Europe, Hamburg, Germany

To overcome image artifacts induced by motion the use of navigator signals has been proposed, combined with either real-time correction of the data acquisition or motion compensated reconstruction. The quality of the correction depends critically on the estimated motion derived from the navigator signal. We present a fast, robust and precise algorithm to evaluate data from an orbital navigator trajectory and its application to motion compensated reconstruction.