Real-Time Estimation of Lateral Displacement Using Time Domain Cross Correlation with Prior Estimates

TitleReal-Time Estimation of Lateral Displacement Using Time Domain Cross Correlation with Prior Estimates
Publication TypeJournal Article
Year of Publication2006
AuthorsZahiri-Azar, R., and S. E. Salcudean
Journal2006 IEEE Ulrasonics Symposium, Vols 1-5, Proceedings
Pagination1209–1212
ISSN1051-0117
Abstract

Time domain cross correlation with prior estimates (TDPE) has been recently introduced for high frame rate real-time speckle tracking. TDPE uses prior displacement estimates of neighboring windows to speed up computation. it correlation monitoring technique is then used to verify the estimated displacement and if needed a recovery search is triggered to find the correct displacement. In this paper we extend the idea of TDPE to 2D motion tracking to estimate both the axial and the lateral component of the motion in real-time.

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