A simple, photometrically accurate algorithm for deconvolution of optical images

Details A simple, photometrically accurate algorithm for deconvolution of optical images A simple, photometrically accurate algorithm for deconvolution of optical images

Jul 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991pasp..103..723k&link_type=abstract

Astronomical Society of the Pacific, Publications (ISSN 0004-6280), vol. 103, July 1991, p. 723-729.

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Astronomical Photometry, Charge Coupled Devices, Image Analysis, Algorithms, Convolution Integrals, Cray Computers, Hubble Space Telescope

Scientific paper

A modified version of the CLEAN deconvolution technique, incorporating a noise model, has been tested on simulated HST data. This straightforward algorithm displays many desirable features for astronomical image reconstruction, as shown by rigorous numerical tests: (1) the photometric scale of the data is preserved accurately, (2) information on the local noise level due to Poisson statistics in the input data is preserved, and (3) it can accommodate a spatially variable point-spread function. Some of these properties are not shared by any widely used deconvolution algorithm. Some considerations of computing speed, and application to ground-based images, are briefly discussed.

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