Apparatus for selectively segmenting red and white blood corpusc

Details Apparatus for selectively segmenting red and white blood corpusc Apparatus for selectively segmenting red and white blood corpusc

1974-11-12

1976-06-15

Segal, Robert

Optics: measuring and testing

Blood analysis

356201, G01M 3316, G01N 2106

Patent

active

039633500

ABSTRACT:
The segmentation apparatus comprises means for illuminating a blood smear mounted on a slide and subjected to WRIGHT staining successively with lights having wavelengths of 410 nm and 530 nm respectively for obtaining two blood corpuscle images produced by monochromatic lights having respective wavelengths, means for producing two electric signals having levels corresponding to the tones of respective blood corpuscle images, means for converting the two electric signals into binary signals in accordance with two different threshold valves, means for obtaining the exclusive OR of the two binary signals for detecting the white blood corpuscles in the blood, and means for obtaining the logical product of said two binary signals the segmenting the red blood corpuscles in the blood.

REFERENCES:
patent: 2875666 (1959-03-01), Parker et al.
patent: 3684377 (1972-08-01), Adams et al.
patent: 3714372 (1973-01-01), Rosen et al.
patent: 3824393 (1974-07-01), Brain

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