Optical Element, Device, Method, and Applications

reportActive / Technical Report | Accession Number: ADA590806 | Open PDF

Abstract:

A novel phase-coded aperture, associated imaging system, and design method is disclosed. The optical imaging system includes a coded-aperture followed optically by a detector array and includes an image processor. A diffraction pattern in the form of a band-limited uniformly redundant array is formed on the detector array when focusable radiation from a point source in object space is modulation by the transmission function of the coded-aperture. Since diffraction effect cannot be ignored in the optical regime, an iterative phase retrieval method is used to calculate the phase-coded aperture transmission function. Correlation type processing can be applied for the image recovery.

Author(s):
Chi, Wanli ; George, Nicholas
Author Organization(s):
ROCHESTER UNIV NY
Descriptive Note:
Patent application, Filed 5 Oct 2010
Supplementary Note:
Published in U.S. Patent Application Publication, Pub. No. US 2011/0085051 A1, dated 14 April 2011.
Pagination:
0021

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release
Distribution Statement:
Approved For Public Release; Distribution Is Unlimited.

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
PAT-APPL-12 898 060, ARO-56533-PH.12
Contract/Grant Number(s):
W911NF-09-1-0425
Monitor Series:
56533-PH.12, ARO
 Subject Terms
Joint Capability Areas:
JCA_6_Net Centric; JCA_2_Battlespace Awareness; JCA_6.3.3_Spectrum Management; JCA_2.2.2_Imagery Collection; JCA_2.2_Collection; JCA_6.1_Information Transport; JCA_6.3_Net Management; JCA_3.2_Engagement; JCA_3_Force Application; JCA_1.2.5_Lessons Learned; JCA_1.2_Force Preparation; JCA_1_Force Support; JCA_5_Command and Control; JCA_8_Building Partnerships
Modernization Areas:
Microelectronics
Communities of Interest:
Air Platforms
Descriptor(s):
*APERTURES, DETECTORS, DIFFRACTION, IMAGE PROCESSING, X RAY SPECTRA
Field(s)/Group(s):
Optics
Keyword(s):
BAND LIMITED REDUNDANT ARRAYS, CODED APERTURES, COMPUTATIONAL IMAGING, CORRELATION OPTICAL RECEIVERS, IMAGE RETRIEVAL, UNIFORMLY REDUNDANT ARRAYS, X RAY CAMERAS, PE611102
Report Date:
2011 Apr 14
Creation Date:
2014 Jan 15