Phase retrieval of photon-limited stellar images from information of the power spectrum only.

Details Phase retrieval of photon-limited stellar images from information of the power spectrum only. Phase retrieval of photon-limited stellar images from information of the power spectrum only.

Jun 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991josaa...8..908p&link_type=abstract

Journal of the Optical Society of America A, Vol. 8, No. 6, p. 908 - 918

Computer Science

4

Scientific paper

The authors have obtained reconstructions of photon-limited stellar images by using iterative phase-retrieval methods. These procedures operate with the autocorrelation or, equivalently, power-spectrum data that are estimated by applying stellar speckle interferometry techniques to turbulence-degraded, short-exposure specklegrams. The authors present results from both real data and computer-simulated data. They also compare these results according to the phase-retrieval algorithm used and address whether they impose the available information in the object space (autocorrelation) or in the spatial-frequency space (power spectrum).

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