Image recovery from data acquired with a charge-coupled-device camera.

Details Image recovery from data acquired with a charge-coupled-device camera. Image recovery from data acquired with a charge-coupled-device camera.

May 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993josaa..10.1014s&link_type=abstract

Journal of the Optical Society of America A, Vol. 10, No. 5, p. 1014 - 1023

Physics

76

Scientific paper

A model for data acquired with the use of a charge-coupled-device camera is given and is then used for developing a new iterative method for restoring intensities of objects observed with such a camera. The model includes the effects of point spread, photoconversion noise, readout noise, nonuniform flat-field response, nonuniform spectral response, and extraneous charge carriers resulting from bias, dark current, and both internal and external background radiation. An iterative algorithm is identified that produces a sequence of estimates converging toward a constrained maximum-likelihood estimate of the intensity distribution of an imaged object. An example is given for restoring images from data acquired with the use of the Hubble Space Telescope.

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