Comparison of algorithms for tracking sub-pixel speckle motion
Publication
, Journal Article
Geiman, B; Bohs, L; Anderson, M; Breit, S; Trahey, G
Published in: Proceedings of the IEEE Ultrasonics Symposium
December 1, 1997
We have previously described Ensemble Tracking, a speckle tracking method that uses parallel receive processing and 2D pattern matching to generate a vector velocity map with high spatial and temporal resolution. Due to the mismatch in axial and lateral spatial frequencies of speckle and limited lateral sampling, Ensemble Tracking requires lateral interpolation to improve lateral velocity resolution. In this paper, we compare three interpolation algorithms for measuring lateral sub-pixel speckle motion: Cubic Spline, Parabolic Fit, and Grid Slopes. Simulation results show that Grid Slopes performs better than Cubic Spline and Parabolic Fit, and is accurate over a wider range of speckle translations.
Duke Scholars
Published In
Proceedings of the IEEE Ultrasonics Symposium
ISSN
1051-0117
Publication Date
December 1, 1997
Volume
2
Start / End Page
1239 / 1242
Citation
APA
Chicago
ICMJE
MLA
NLM
Geiman, B., Bohs, L., Anderson, M., Breit, S., & Trahey, G. (1997). Comparison of algorithms for tracking sub-pixel speckle motion. Proceedings of the IEEE Ultrasonics Symposium, 2, 1239–1242.
Geiman, B., L. Bohs, M. Anderson, S. Breit, and G. Trahey. “Comparison of algorithms for tracking sub-pixel speckle motion.” Proceedings of the IEEE Ultrasonics Symposium 2 (December 1, 1997): 1239–42.
Geiman B, Bohs L, Anderson M, Breit S, Trahey G. Comparison of algorithms for tracking sub-pixel speckle motion. Proceedings of the IEEE Ultrasonics Symposium. 1997 Dec 1;2:1239–42.
Geiman, B., et al. “Comparison of algorithms for tracking sub-pixel speckle motion.” Proceedings of the IEEE Ultrasonics Symposium, vol. 2, Dec. 1997, pp. 1239–42.
Geiman B, Bohs L, Anderson M, Breit S, Trahey G. Comparison of algorithms for tracking sub-pixel speckle motion. Proceedings of the IEEE Ultrasonics Symposium. 1997 Dec 1;2:1239–1242.
Published In
Proceedings of the IEEE Ultrasonics Symposium
ISSN
1051-0117
Publication Date
December 1, 1997
Volume
2
Start / End Page
1239 / 1242