Optimal filtering techniques for photograms

Details Optimal filtering techniques for photograms Optimal filtering techniques for photograms

Dec 1978

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978mmsai..49..745p&link_type=abstract

(Consiglio Nazionale delle Ricerche, Convegno sulle Metodologie di Trattamento dell'Informazione, Trieste, Nov. 24, 25, 1977 and

Physics

Optics

Astronomical Photography, Linear Filters, Noise Reduction, Optical Filters, Photogrammetry, Wiener Filtering, Adaptive Optics, Optimal Control, Signal To Noise Ratios, Spectral Signatures

Scientific paper

Optimal linear filtering of photograms in the signal-dependent noise case is investigated through use of a simulated test signal. The simulated test signal is developed from experimental data on the signal and color dependence of photographic granulation noise. Generalization of the optimal standard Wiener filter to the non-stationary signal-dependent noise case yields the best performance-to-computing time ratio. In terms of precision, however, the space variant adaptive filter is superior.

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