07087902 is referenced by 39 patents and cites 16 patents.

Systems and methods for reconstructing a plurality of images of an object. An exemplary system includes a radiation source adapted to emit radiation at a plurality of frequencies; a lens with frequency-dependent focal length, such as a Fresnel lens, adapted to receive radiation modified by the object and to project onto a fixed image plane a frequency-dependent image of a slice of the object perpendicular to the radiation path; a sensor for capturing the frequency-dependent image of the object; and apparatus for facilitating creation and capture of a plurality of frequency-dependent images of the object at the plurality of frequencies. A system for reconstructing a tomographic image of the object further includes apparatus for assembling the plurality of frequency-dependent images to reconstruct the tomographic image. Methods and systems are described for use in the visible, audible, and THz frequency ranges and with broadband or narrowband radiation sources.

Title
Fresnel lens tomographic imaging
Application Number
10/417597
Publication Number
7087902 (B2)
Application Date
April 17, 2003
Publication Date
August 8, 2006
Inventor
Xi Cheng Zhang
Latham
NY, US
Shaohong Wang
Troy
NY, US
Agent
RatnerPrestia
Assignee
Rensselaer Polytechnic Institute
NY, US
IPC
G01J 5/02
A61B 6/00
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