Diffraction tomography systems and methods with arbitrary source

Details Diffraction tomography systems and methods with arbitrary source Diffraction tomography systems and methods with arbitrary source

1984-01-25

1986-07-01

Smith, Jerry

Boots, shoes, and leggings

73602, 128660, 250256, 364414, 364421, 364422, 378901, G01V 500, G01N 2900, G06F 1542

Patent

active

045983666

ABSTRACT:
Diffraction tomography systems and methods are disclosed for the reconstruction of physical properties of two and three-dimensional objects from information collected by detectors located along an arbitrary surface in space. The sources of energy investigating the object may likewise be located along an arbitrary surface. Optimal filtered backpropagation techniques and preprocessing required for such reconstructions are disclosed for systems utilizing plane wave sources, and for systems using fan beam cylindrical or spherical wave insonification. The preprocessing and filtered backpropagation techniques are shown to simplify for the cases of circular boundaries, and other separable boundaries within the Helmholtz equation.

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