Now showing items 1-3 of 3
A numerical study of conjugate gradient directions for an ultrasound inverse problem
(World Scientific Publishing, 2004-12)
In ultrasound inverse problems, the integral equation can be nonlinear, ill-posed, and computationally expensive. One approach to solving such problems is the conjugate gradient (CG) method. A key parameter in the CG method ...
A conjugate gradient-neural network technique for ultrasound inverse imaging
(World Scientific Publishing, 2002-06)
In this paper, a new technique for solving the two-dimensional inverse scattering problem for ultrasound inverse imaging is presented. Reconstruction of a two-dimensional object is accomplished using an iterative algorithm ...
A comparison of material classification techniques for ultrasound inverse imaging
(Journal of the Acoustical Society of America, 2002-01)
The conjugate gradient method with edge preserving regularization (CGEP) is applied to the ultrasoundinverse scattering problem for the early detection of breast tumors. To accelerate image reconstruction, several different ...