A fundamental limit on delay estimation using partially correlated speckle signals

@article{Walker1995AFL,
  title={A fundamental limit on delay estimation using partially correlated speckle signals},
  author={W. Walker and G. Trahey},
  journal={IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control},
  year={1995},
  volume={42},
  pages={301-308}
}
  • W. Walker, G. Trahey
  • Published 1995
  • Physics
  • IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control
  • Delay estimation is used in ultrasonic imaging to estimate blood or soft tissue motion, to measure echo arrival time differences for phase aberration correction, and to estimate displacement for tissue elasticity measurements. In each of these applications delay estimation is performed using speckle signals which are at least partially decorrelated relative to one another. Delay estimates which utilize such data are subject to large errors known as false peaks and smaller magnitude errors known… CONTINUE READING
    462 Citations

    Figures and Tables from this paper

    The combined effect of signal decorrelation and random noise on the variance of time delay estimation
    • 96
    A comparison of the performance of time-delay estimators in medical ultrasound
    • F. Viola, W. Walker
    • Mathematics, Medicine
    • IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control
    • 2003
    • 217
    Echo decorrelation from displacement gradients in elasticity and velocity estimation
    • 68
    Significance of correlation in ultrasound signal processing
    • 28
    Rapid tracking of small displacements with ultrasound
    • 304
    Speckle coherence and implications for adaptive imaging.
    • 66
    Comparison of time delay estimators in medical ultrasound
    • F. Viola, W. Walker
    • Mathematics
    • 2001 IEEE Ultrasonics Symposium. Proceedings. An International Symposium (Cat. No.01CH37263)
    • 2001
    • 20
    • Highly Influenced
    Rapid tracking of small displacements using ultrasound
    • 9
    Filter-based compounded delay estimation with application to strain imaging
    • P. Liu, D. Liu
    • Physics, Medicine
    • IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control
    • 2011
    • 6
    Continuous delay estimation with polynomial splines
    • G.F. Pinton, G. Trahey
    • Computer Science, Medicine
    • IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control
    • 2006
    • 45

    References

    SHOWING 1-10 OF 31 REFERENCES
    A fundamental limit on the performance of correlation based phase correction and flow estimation techniques
    • W. Walker, G. Trahey
    • Physics
    • IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control
    • 1994
    • 110
    A fundamental limit on the accuracy of speckle signal alignment
    • 18
    A New Velocity Estimator for Color Flow Mapping
    • 65
    Measurements of ultrasonic pulse arrival time differences produced by abdominal wall specimens.
    • 50
    An overview on the time delay estimate in active and passive systems for target localization
    • 324
    • PDF
    A phase aberration correction method for ultrasound imaging
    • 59
    • PDF
    The generalized correlation method for estimation of time delay
    • 3,850
    • PDF
    Phase-aberration correction using signals from point reflectors and diffuse scatterers: basic principles
    • S.W. Flax, M. O'Donnell
    • Physics, Medicine
    • IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control
    • 1988
    • 452
    A statistical analysis of the received signal from blood during laminar flow
    • K. Ferrara, V. Algazi
    • Physics
    • IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control
    • 1994
    • 36