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A microcomputer based digital imaging system for ion microanalysis
Author(s) -
Bryan S. R.,
Woodward W. S.,
Griffis D. P.,
Linton R. W.
Publication year - 1985
Publication title -
journal of microscopy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.569
H-Index - 111
eISSN - 1365-2818
pISSN - 0022-2720
DOI - 10.1111/j.1365-2818.1985.tb02592.x
Subject(s) - pixel , noise (video) , computer science , computer vision , digital image , artificial intelligence , microcomputer , microanalysis , noise reduction , subtraction , image processing , digital imaging , image noise , microscopy , computer graphics (images) , optics , image (mathematics) , chemistry , physics , mathematics , telecommunications , chip , arithmetic , organic chemistry
SUMMARY A microcomputer based digital imaging system was developed for a Cameca IMS‐3f ion microscope permitting real‐time digital acquisition of secondary ion images. Image signal‐to‐noise enhancement results from random noise reduction by real‐time ensemble averaging and from a reduction of pattern noise in the charge injection device (CID) array by subtraction of blank frames. Acquired images comprise 244times248 pixel arrays with 8‐bit intensity resolution. Images are displayed on a colour monitor in a grey scale or pseudo‐colour using one of four programmable lookup tables. Image processing software permits off‐line ion image enhancement and manipulation as well as multitechnique digital image correlations. System capability is illustrated by a biological example involving digital imaging studies of Al distribution in osteomalacic bone tissue, including correlative light microscopy and ion microanalysis.