Title :
Application of a maximum likelihood estimator in an experimental study in ultrasonic diffraction tomography
Author :
Tsihrintzis, George A. ; Devaney, Anthony J.
Author_Institution :
Dept. of Electr. Eng.-Syst., Univ. of Southern California, Los Angeles, CA, USA
fDate :
9/1/1993 12:00:00 AM
Abstract :
A recently proposed approach to the inverse problem of detecting the presence and estimating the location of a known object from data collected in a set of diffraction tomographic experiments is evaluated. Experimental data are used to validate of the filtered backpropagation algorithms used, and their robustness to modeling errors and to severe limitations in the angular coverage of the tomographic data is demonstrated. A potential application to medical imaging of soft tissue is illustrated
Keywords :
acoustic imaging; biomedical ultrasonics; computerised tomography; inverse problems; diagnostic imaging; filtered backpropagation algorithms; inverse problem; maximum likelihood estimator; medical soft tissue imaging; modeling errors; tomographic data angular coverage; ultrasonic diffraction tomography; Backpropagation algorithms; Biological tissues; Biomedical imaging; Diffraction; Inverse problems; Maximum likelihood detection; Maximum likelihood estimation; Object detection; Robustness; Tomography;
Journal_Title :
Medical Imaging, IEEE Transactions on