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.
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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.
|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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