Automated method for measuring microscopic particle contamination in a fluid

Wei R. Chen; Keith A. Teague

doi:10.1117/12.130162

1 January 1993 Automated method for measuring microscopic particle contamination in a fluid

Wei R. Chen, Keith A. Teague

Author Affiliations +

Journal of Electronic Imaging, Vol. 2, Issue 1, (January 1993). https://doi.org/10.1117/12.130162

Abstract

An automated procedure for measuring the size and number of microscopic particles contaminating a fluid is described. The procedure, based on edge detection and region filling, exhibits substantially improved accuracy when compared to simple thresholding techniques, while being only slightly more complicated. The procedure is much less complex than model-based approaches and is shown to be more robust than simple threshold-based techniques in the presence of image blur caused by out-of-focus particles. A clever filling scheme is presented that efficiently segments particles from the background by first identifying pixels that are not particles. Results for two particle types and several focus conditions are given for comparison.

Citation Download Citation

Wei R. Chen and Keith A. Teague "Automated method for measuring microscopic particle contamination in a fluid," Journal of Electronic Imaging 2(1), (1 January 1993). https://doi.org/10.1117/12.130162

Published: 1 January 1993

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