Method and apparatus for recognizing smears

Details Method and apparatus for recognizing smears Method and apparatus for recognizing smears

1980-11-18

1982-12-07

McGraw, Vincent P.

Optics: measuring and testing

Blood analysis

235 92PC, G01N 3348

Patent

active

043623867

ABSTRACT:
After a slide glass having blood smeared thereon has been mounted on a movable stage of a microscope, the stage is moved to position a view field of the microscope to the center of the slide glass. Then, the stage is moved in one direction along the length of the slide glass. The view field of the microscope moves as the stage is moved so that red blood corpuscle densities on the smear are measured sequentially along the length of the slide glass. Based on the measurement a computer determines an optimum test area on the smear for the recognition of white blood corpuscles and the stage is moved to a start position of the optimum test area by an instruction from the computer. Thereafter, a normal stage scan operation for detecting the white blood corpuscles is carried out and the detected white blood corpuscles are automatically classified.

REFERENCES:
patent: 3827804 (1974-08-01), Miller et al.
patent: 4175859 (1979-11-01), Hashizume et al.
"Leukocyte Pattern Recognition", Bacus et al., IEEE Transactions of Systems, Man, & Cybernetics, vol. SMC 2, No. 4, Sep. 1972, pp. 513-526.

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