Computer Science
Scientific paper
Jan 1987
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987spie..828...81r&link_type=abstract
IN: Digital image recovery and synthesis; Proceedings of the Meeting, San Diego, CA, Aug. 17, 18, 1987 (A88-51101 22-35). Bellin
Computer Science
Computerized Simulation, Focal Plane Devices, Image Reconstruction, Speckle Interferometry, Turbulence Effects, Autocorrelation, Fourier Transformation, Pixels, Root-Mean-Square Errors, White Noise
Scientific paper
Several methods of image reconstruction from turbulently distorted focal-plane intensity patterns are compared from the viewpoint of noise sensitivity, processing requirements, and ability to deal with extended objects. Computer simulation of the shift-and-add method, with and without weighted deconvolution, yields poor results against extended targets. Computer simulation of the speckle interferometry method is carried out as far as correlogram construction; the experimentally measured noise sensitivity of the phase-retrieval procedure leads to poor predicted image quality. A complete end-to-end simulation of the speckle masking method is shown in detail; the extended target image is reconstructed clearly and unambiguously.
Liu Chan Chiang
Rapier J. L.
Watson Duncan C.
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