Method for detection of the presence of undesired microorganisms

Details Method for detection of the presence of undesired microorganisms Method for detection of the presence of undesired microorganisms

1988-08-01

1991-03-26

Moore, David K.

Image analysis

Histogram processing

For setting a threshold

382 18, 356435, G06K 936

Patent

active

050036114

ABSTRACT:
A method of detecting undesired microorganisms when cells are cultured in a light permeable container is disclosed. TV camera monitors the image of a well containing microorganisms through a microscope. The output of the TV camera is processed by a picture digital processor so as to count the number of cultured living cells. On the other hand, change of the light absorption of the visible light by the cultured solution is measured. Then the number of undesired microorganisms can be calculated by the number of the living cells and change of the light absorption.

REFERENCES:
patent: 3773426 (1973-11-01), Mudd
patent: 4519087 (1985-05-01), Dein Doerfer
patent: 4564444 (1986-01-01), Hiroaoka et al.
patent: 4794450 (1988-12-01), Saito et al.
patent: 4856073 (1989-08-01), Farber et al.

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