Electronic Resource
Copenhagen
:
International Union of Crystallography (IUCr)
Applied crystallography online
14 (1981), S. 478-486
ISSN:
1600-5767
Source:
Crystallography Journals Online : IUCR Backfile Archive 1948-2001
Topics:
Geosciences
,
Physics
Notes:
A computer method is described which provides a means for determination of both background and spot characteristics without the knowledge a priori of the positions of those spots in a crystallographic diffraction photograph. The background is first determined in any arbitrary region by means of a histogram technique. Then the sets of points emerging from the background's statistical tolerances are collected together with simple neighbouring rules. The problem of large areas which do not fit in a computer memory is discussed and solved with an overlapping window technique. The accuracy of the method is checked by means of a simulation (characteristic retrieval of computer generated spots); the precision appears to be better than the classical rectangular box method except for weak spots.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1107/S0021889881009886
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