Adaptive imaging in aberrating media: a broadband algorithm.
An adaptive algorithm is derived for imaging in an aberrating medium based on wideband (time-domain) linear array data. Image reconstructions using simulated scattering data are presented. An analogy is also drawn between broadband array imaging and limited-angle tomography. This analogy suggests some tomographic-like filtering schemes that can be applied to improve the quality of the image. The algorithm is designed for imaging in composite material, although the imaging of other heterogeneous media such as tissue may be feasible under certain conditions.
Norton
S J
SJ
National Institute of Standards and Technology, Gaithersburg, MD 20899.
D000465:Algorithms; D007091:Image Processing, Computer-Assisted; D014463:Ultrasonography / Q000379:methods*