Image analysis – Histogram processing – For setting a threshold
Patent
1991-01-24
1994-06-14
Razavi, Michael
Image analysis
Histogram processing
For setting a threshold
382 10, 382 33, 382 34, G06K 962
Patent
active
053217721
ABSTRACT:
A digital image processor is described in which the output from a linear array of electro-optic sensors, first having been signal conditioned and digitized, is then loaded into a RAM image memory forming a part of the microprocessor-based template matching processor. The image memory functions like a shift device and as the sensor image signals are shifted therethrough, they are compared on a bit-by-bit basis with digital signals stored in a PROM which comprise a plurality of templates with which the scanned image is to be compared. The extent of correspondence between the image being sensed and the templates is then accumulated and if the sum exceeds a predetermined threshold, a match between the image being sensed and the template is established. The system is implemented using gate array technology such that the common template concept is feasible in those applications requiring very small size and low power dissipation.
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Honeywell Inc.
Lenkszus Donald J.
Razavi Michael
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