Determination of Lateral Modulation Apodization Functions Using a Regularized, Weighted Least Squares Estimation
Author
Source
International Journal of Biomedical Imaging
Issue
Vol. 2010, Issue 2010 (31 Dec. 2010), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2010-05-09
Country of Publication
Egypt
No. of Pages
7
Main Subjects
Abstract EN
Recently, work in this group has focused on the lateral cosine modulation method (LCM) which can be used for next-generation ultrasound (US) echo imaging and tissue displacement vector/strain tensor measurements (blood, soft tissues, etc.).
For instance, in US echo imaging, a high lateral spatial resolution as well as a high axial spatial resolution can be obtained, and in tissue displacement vector measurements, accurate measurements of lateral tissue displacements as well as of axial tissue displacements can be realized.
For an optimal determination of an apodization function for the LCM method, the regularized, weighted minimum-norm least squares (WMNLSs) estimation method is presented in this study.
For designed Gaussian-type point spread functions (PSFs) with lateral modulation as an example, the regularized WMNLS estimation in simulations yields better approximations of the designed PSFs having wider lateral bandwidths than a Fraunhofer approximation and a singular-value decomposition (SVD).
The usefulness of the regularized WMNLS estimation for the determination of apodization functions is demonstrated.
American Psychological Association (APA)
Sumi, Chikayoshi. 2010. Determination of Lateral Modulation Apodization Functions Using a Regularized, Weighted Least Squares Estimation. International Journal of Biomedical Imaging،Vol. 2010, no. 2010, pp.1-7.
https://search.emarefa.net/detail/BIM-486949
Modern Language Association (MLA)
Sumi, Chikayoshi. Determination of Lateral Modulation Apodization Functions Using a Regularized, Weighted Least Squares Estimation. International Journal of Biomedical Imaging No. 2010 (2010), pp.1-7.
https://search.emarefa.net/detail/BIM-486949
American Medical Association (AMA)
Sumi, Chikayoshi. Determination of Lateral Modulation Apodization Functions Using a Regularized, Weighted Least Squares Estimation. International Journal of Biomedical Imaging. 2010. Vol. 2010, no. 2010, pp.1-7.
https://search.emarefa.net/detail/BIM-486949
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-486949