Deconvolution with increased sampling.

Details Deconvolution with increased sampling. Deconvolution with increased sampling.

Sep 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989esoc...31..219l&link_type=abstract

1. ESO/ST-ECF Data Analysis Workshop, p. 219 - 223

Mathematics

7

Ccd Images: Data Processing, Image Processing

Scientific paper

A penalty to pay for the linearity and high quantum efficiency of CCD detectors is the unsightly pixelization of modern astronomical images which, with present-day technology, is the unavoidable consequence of the need to compromise between the desired field and the possible detector size. The approach adopted here is to incorporate pixelization into the mathematics of image formation. Thus the authors now relate the continuous intensity distribution of the object not to the continuous intensity distribution of its image in the focal plane but directly to the discrete sampling provided by the CCD detector. A deconvolution technique is then applied to obtain a representation of the object that is superior to its CCD image. This deconvolved image can be sampled on a finer scale than the original pixels in order to improve the aesthetics.

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