An Automatic Focusing System of Astronomical Telescope Based on Image Definition Evaluation

Details An Automatic Focusing System of Astronomical Telescope Based on Image Definition Evaluation An Automatic Focusing System of Astronomical Telescope Based on Image Definition Evaluation

Sep 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008pnaoc...5..294l&link_type=abstract

Astronomical Research and Technology. Publications of National Astronomical Observatories of China (ISSN 1672-7673), Vol. 5, No.

Astronomy and Astrophysics

Astronomy

Automatic Focusing, Image Definition, Astronomical Telescope

Scientific paper

The automatic focusing (AF) applied in astronomical telescope is helpful for enhancing automatization and efficiency, improving focusing precision and quality, avoiding dependency on the experience of the operator. Due to the image of an object's having less detail than scenery, those arithmetics used in camera AF system are not suitable for astronomical telescope AF system. A new evaluation function of image definition which is suitable for object is proposed in the paper.

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