Image analysis – Histogram processing – For setting a threshold
Patent
1984-10-25
1987-02-24
Kreitman, Stephen A.
Image analysis
Histogram processing
For setting a threshold
G06K 900
Patent
active
046463542
ABSTRACT:
An area measuring apparatus for measuring the surface area of an object by the use of a TV camera. The apparatus comprises a comparator which separates a component corresponding to the image of the object from the image signal obtained with the TV camera; a gate circuit which allows a clock signal to pass only while the image component is detected; and an arithmetic circuit which counts the pulses of the clock signal allowed to pass the gate circuit and corresponding to a single frame of the image signal and converts the pulse counts into an area.
REFERENCES:
patent: 3967242 (1976-06-01), Isoo et al.
patent: 3976827 (1976-08-01), Alien et al.
patent: 4156231 (1979-05-01), Edamatsu et al.
Kodama Tetsuzi
Naito Akira
Tsuruse Hideki
Tsutsumi Hironobu
Ushio Hiroshi
Kreitman Stephen A.
Mitsubishi Denki & Kabushiki Kaisha
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