Accession Number : ADA268463


Title :   Image Reconstruction from Interferometer Data


Descriptive Note : Final rept. Sep 90-Jul 92,


Corporate Author : ENVIRONMENTAL RESEARCH INST OF MICHIGAN ANN ARBOR INFRARED AND OPTICS DIV


Personal Author(s) : Fienup, J R ; Seldin, J H


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a268463.pdf


Report Date : Mar 1993


Pagination or Media Count : 38


Abstract : In blind tests, we successfully reconstructed images from data simulated to have some of the defects that data coming from the multi-aperture amplitude interferometer (MAAI) at the University of Maryland would have. We also successfully reconstructed good-quality images from phaseless data collected by ERIM's experimental range-angle interferometric imaging system. These successes in reconstructing images with phaseless interferometer data demonstrate the possibility of obtaining fine-resolution images with large, low- cost, light-weight, aberrated optical systems, despite the kinds of noise and other errors that are present in real data. We also showed that it is feasible to insert a beam deviator in the MAAI that would allow us to measure the lower spatial frequencies that are crucial for reconstructing images from low-light- level data.... Unconventional imaging, Amplitude interferometer, Imaging interferometry, Image reconstruction, Phase retrieval.


Descriptors :   *OPTICAL IMAGES , *INTERFEROMETERS , *IMAGE RESTORATION , TEST AND EVALUATION , ANGLES , CONSTRUCTION , AMPLITUDE , APERTURES , QUALITY , MARYLAND , RESOLUTION


Subject Categories : Atomic and Molecular Physics and Spectroscopy
      Optics


Distribution Statement : APPROVED FOR PUBLIC RELEASE