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

Tim Nielsen¹, Peter Boernert¹

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.