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An autocorrelation-based method for improvement of sub-pixel displacement estimation in ultrasound strain imaging.
- Source :
-
IEEE Transactions on Ultrasonics Ferroelectrics & Frequency Control . 04/01/2011, Vol. 58 Issue 4, p838-843. 0p. - Publication Year :
- 2011
-
Abstract
- In ultrasound strain and elasticity imaging, an accurate and cost-effective sub-pixel displacement estimator is required because strain/elasticity imaging quality relies on the displacement SNR, which can often be higher if more computational resources are provided. In this paper, we introduce an autocorrelation-based method to cost-effectively improve subpixel displacement estimation quality. To quantitatively evaluate the performance of the autocorrelation method, simulated and tissue-mimicking phantom experiments were performed. The computational cost of the autocorrelation method is also discussed. The results of our study suggest the autocorrelation method can be used for a real-time elasticity imaging system. [ABSTRACT FROM PUBLISHER]
Details
- Language :
- English
- ISSN :
- 08853010
- Volume :
- 58
- Issue :
- 4
- Database :
- Academic Search Index
- Journal :
- IEEE Transactions on Ultrasonics Ferroelectrics & Frequency Control
- Publication Type :
- Academic Journal
- Accession number :
- 60217435
- Full Text :
- https://doi.org/10.1109/TUFFC.2011.1876