3D IMAGING OF OPAQUE OBJECTS BY USING PHASE RETRIEVAL

Award Information
Agency: Department of Defense
Branch: Missile Defense Agency
Contract: N/A
Agency Tracking Number: 25603
Amount: $59,851.00
Phase: Phase I
Program: SBIR
Awards Year: 1994
Solicitation Year: N/A
Solicitation Topic Code: N/A
Solicitation Number: N/A
Small Business Information
4667 Freedom Drive, Ann Arbor, MI, 48108
DUNS: N/A
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Richard G. Paxman, Phd
 (313) 677-2113
Business Contact
Phone: () -
Research Institution
N/A
Abstract
As an alternative to holographic laser radar, AMPS will develop a 3-D imaging concept that collects far-field intensity speckle patterns. This kind of measurement greatly relaxes the tolerances on vibration and coherence length. However, phase retrieval will be required to retrieve a 3-D image. Phase retrieval algorithms typically utilize some type of prior knowledge about the object. In industrial metrology and missile-imaging problems the objects will be opaque to the illumination and will appear as a warped 2-D surface embedded in a 3-D space. The opacity constraint promises to be very powerful since it greatly reduces the class of feasible objects from which to choose an estimate. We propose to demonstrate, in computer simulation and with laboratory data, 3-D imaging of opaque objects by using phase retrieval.

* Information listed above is at the time of submission. *

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