Simulated annealing image reconstruction in photon-limited stellar speckle interferometry

Details Simulated annealing image reconstruction in photon-limited stellar speckle interferometry Simulated annealing image reconstruction in photon-limited stellar speckle interferometry

Jan 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989a%26a...208..374n&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 208, no. 1-2, Jan. 1989, p. 374-380. Research supported by the Comision Interm

Astronomy and Astrophysics

Astrophysics

7

Image Reconstruction, Signal To Noise Ratios, Speckle Interferometry, Stellar Spectrophotometry, Annealing, Fourier Transformation, Low Pass Filters, Photons, Pixels

Scientific paper

The simulated annealing algorithm for phase retrieval has been applied in image reconstruction from low-light level stellar speckle interferometry (SSI) data. A realistic computer simulation of photon-limited SSI has been performed, successfully obtaining a reconstructed image. The algorithm has been shown to be robust and able to give good reconstructions of complex astronomical objects with high dynamic range, even in the presence of large amounts of photon noise. Its performance seems so far limited by its considerable computing time requirements.

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