Chemistry: molecular biology and microbiology – Measuring or testing process involving enzymes or... – Involving viable micro-organism
Patent
1994-07-14
1995-04-04
Warden, Robert J.
Chemistry: molecular biology and microbiology
Measuring or testing process involving enzymes or...
Involving viable micro-organism
435 40, 435291, C12Q 100
Patent
active
054037220
ABSTRACT:
The present invention relates to a method and apparatus for counting the number of microorganism colonies present on a disposable microorganism culturing device having a substantially planar substrate. The preferred apparatus of the present invention includes an LED bar illuminating the surface of the substrate and a linear array of SELFOC lenses which focus the light reflected off of the substrate onto a linear CCD sensor array. The CCD sensor array is connected to a microprocessor which analyzes the raster-scanned data using the preferred algorithm. The preferred algorithm uses the sigma-shaped neighborhood for image processing. The preferred algorithm passes the sigma region across the image in a raster-scanned order to detect object starts and merges which yield a colony count for a scanned microorganism culturing device.
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Floeder Steven P.
Graessle Josef A.
Schultz John C.
Schwarz Werner R.
Waltz Frederick M.
Busse Paul W.
Griswold Gary L.
Kirn Walter N.
Minnesota Mining and Manufacturing Company
Thornton Krisanne M.
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