Image processing apparatus having apparatus for correcting the i

Details Image processing apparatus having apparatus for correcting the i Image processing apparatus having apparatus for correcting the i

1991-03-04

1993-01-26

Couso, Jose L.

Image analysis

Histogram processing

For setting a threshold

382 1, 382 48, 358108, 187132, G06K 962

Patent

active

051827760

ABSTRACT:
An image of an elevator hall or an inside of elevator car is acquired by photographing apparatus, and the number of waiting passenger is detected by comparing the above-mentioned image with a background image when no passenger is present at the elevator hall. Second image processing apparatus with high precision is prepared by the same image information as that of first image processing apparatus, teacher information derived therefrom is compared with an output from the first image processing apparatus. If the teacher information is not coincident with the output from the first image processing means, parameters required for performing the image process by the first image processing appartus, for instance, constants, threshold values and weight coefficients employed in an image processing algorithm are adjusted.

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Translations "Traffic Flow Measurement System Using Image Processsing", Y. Kudo, p. 310, Line 20 of Left Column to Line 15, Right Column.
"Real Time Measurement of Pedestrian Flow Using Processing of ITV Images" S. Takaka, Lines 11-18, Left Column p. 1 & Lines 2-11, Right Column p. 8.

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