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U.S. Department of Energy
Office of Scientific and Technical Information

Confocal coded aperture imaging

Patent ·
OSTI ID:873583

A method for imaging a target volume comprises the steps of: radiating a small bandwidth of energy toward the target volume; focusing the small bandwidth of energy into a beam; moving the target volume through a plurality of positions within the focused beam; collecting a beam of energy scattered from the target volume with a non-diffractive confocal coded aperture; generating a shadow image of said aperture from every point source of radiation in the target volume; and, reconstructing the shadow image into a 3-dimensional image of the every point source by mathematically correlating the shadow image with a digital or analog version of the coded aperture. The method can comprise the step of collecting the beam of energy scattered from the target volume with a Fresnel zone plate.

Research Organization:
LOCKHEED MARTIN ENERGY RES COR
DOE Contract Number:
AC05-96OR22464
Assignee:
UT-Battelle, LLC (Oak Ridge, TN)
Patent Number(s):
US 6195412
OSTI ID:
873583
Country of Publication:
United States
Language:
English

References (3)

Three-dimensional information from real-time encoded images journal January 1990
Design and fabrication of Fresnel zone plates with large numbers of zones journal November 1997
Coded aperture imaging with uniformly redundant arrays journal January 1978