A method for processing ccd images to remove cosmic-rays and other randomly positioned spurious events - theory and experiment

Kay, L. and Sadler, D.A (1991) A method for processing ccd images to remove cosmic-rays and other randomly positioned spurious events - theory and experiment. Measurement Science & Technology, 2 (6). pp. 532-535. ISSN 0957-0233. (The full text of this publication is not available from this repository)

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Official URL
http://dx.doi.org/10.1088/0957-0233/2/6/008

Abstract

If two optical images are obtained under identical conditions using a CCD, a third image (called the lesser image) may be formed in computer memory by taking the lesser of the two counts in each pixel. The process will remove or greatly reduce the effect of spurious events such as cosmic rays. Probability distribution functions for the count in a single pixel in the lesser image and for the difference between any two pixels are derived. Expressions for the moments of the distributions are verified experimentally using a CCD type P8603. Use of the lesser image for scientific purposes is discussed.

Item Type: Article
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
Divisions: Faculties > Science Technology and Medical Studies > School of Physical Sciences
Depositing User: O.O. Odanye
Date Deposited: 03 Nov 2009 17:32
Last Modified: 03 Nov 2009 17:32
Resource URI: http://kar.kent.ac.uk/id/eprint/22999 (The current URI for this page, for reference purposes)
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