Regularized, weighted temporal multiresolution speckle tracking of small displacements in ultrasound
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Hollender, P; Vudatha, V; Trahey, G
Published in: 2015 IEEE International Ultrasonics Symposium, IUS 2015
November 13, 2015
A new referencing scheme for estimating axial displacements with ultrasound is presented. The multiresolution scheme combines estimates made at multiple temporal spacings into a single, noise robust, high resolution estimate. The problem is framed as an overdetermined system of equations, and the least-squares solution is solved directly. Weighting of input estimates allows for automatic rejection of decorrelated data, and Tikhonov regularization enforces smoothness constraints. This scheme is particularly useful for estimating motion with decorrelated frames, such as with Acoustic Radiation Force Impulse (ARFI) imaging.
Duke Scholars
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2015 IEEE International Ultrasonics Symposium, IUS 2015
DOI
Publication Date
November 13, 2015
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Hollender, P., Vudatha, V., & Trahey, G. (2015). Regularized, weighted temporal multiresolution speckle tracking of small displacements in ultrasound. In 2015 IEEE International Ultrasonics Symposium, IUS 2015. https://doi.org/10.1109/ULTSYM.2015.0376
Hollender, P., V. Vudatha, and G. Trahey. “Regularized, weighted temporal multiresolution speckle tracking of small displacements in ultrasound.” In 2015 IEEE International Ultrasonics Symposium, IUS 2015, 2015. https://doi.org/10.1109/ULTSYM.2015.0376.
Hollender P, Vudatha V, Trahey G. Regularized, weighted temporal multiresolution speckle tracking of small displacements in ultrasound. In: 2015 IEEE International Ultrasonics Symposium, IUS 2015. 2015.
Hollender, P., et al. “Regularized, weighted temporal multiresolution speckle tracking of small displacements in ultrasound.” 2015 IEEE International Ultrasonics Symposium, IUS 2015, 2015. Scopus, doi:10.1109/ULTSYM.2015.0376.
Hollender P, Vudatha V, Trahey G. Regularized, weighted temporal multiresolution speckle tracking of small displacements in ultrasound. 2015 IEEE International Ultrasonics Symposium, IUS 2015. 2015.
Published In
2015 IEEE International Ultrasonics Symposium, IUS 2015
DOI
Publication Date
November 13, 2015