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Motion estimation in ultrasound images using time domain cross correlation with prior estimates.
- Source :
-
IEEE transactions on bio-medical engineering [IEEE Trans Biomed Eng] 2006 Oct; Vol. 53 (10), pp. 1990-2000. - Publication Year :
- 2006
-
Abstract
- In this paper we introduce a new speckle tracking method that is based on the standard time-domain cross correlation strain estimation (TDE). We call this method time-domain cross-correlation with prior estimates (TDPE), because it uses prior displacement estimates of neighboring windows to speed up computation. TDPE has all the advantages of TDE, but is much faster. Simulations, as well as experiments with phantoms and tissue, indicate that TDPE is capable of reliably estimating tissue displacement and strain over a large range of displacements in real time. The computational efficiency of TDPE is compared with current time-efficient methods that have been used in real time strain imaging systems. The results show that TDPE is the most time efficient algorithm to date, and is roughly 10 times faster than the TDE. The implementation of TDPE on an Ultrasonix RP500 ultrasound machine runs at 30 fps for strain images of 16000 pixels.
- Subjects :
- Computer Systems
Information Storage and Retrieval methods
Phantoms, Imaging
Reproducibility of Results
Sensitivity and Specificity
Ultrasonography instrumentation
Algorithms
Image Enhancement methods
Image Interpretation, Computer-Assisted methods
Models, Biological
Movement physiology
Ultrasonography methods
Subjects
Details
- Language :
- English
- ISSN :
- 0018-9294
- Volume :
- 53
- Issue :
- 10
- Database :
- MEDLINE
- Journal :
- IEEE transactions on bio-medical engineering
- Publication Type :
- Academic Journal
- Accession number :
- 17019863
- Full Text :
- https://doi.org/10.1109/TBME.2006.881780