Method of determining an exposure amount using optical recogniti

Details Method of determining an exposure amount using optical recogniti Method of determining an exposure amount using optical recogniti

1995-10-27

1997-05-13

Grimley, Arthur T.

Photocopying

Projection printing and copying cameras

Multicolor picture

355 40, 355 77, 382118, 382274, G03B 2732, G03B 2773, G03B 2780

Patent

active

056297521

ABSTRACT:
In a method of determining an exposure amount, image data is fetched, and an image is divided into a plurality of regions by binarization or another technique, a shape pattern representing a contour of the head of a human figure is detected, and a face candidate region is set in accordance with the detected pattern. Next, a shape pattern representing a contour of the face of the human figure, a shape pattern representing an internal structure of the face of the human figure, and a shape pattern representing a contour of the body of the human figure are detected respectively. The consistency of a face candidate region is determined consecutively by the detected patterns, and a region having the highest probability of being a region corresponding to the face of the human figure is determined. The above processing is carried out a plurality of times while a threshold for binarization and parameters for controlling the relative fineness of the division of the image are varied. The data on the finally determined facial region is outputted as a result of determination.

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patent: 5410609 (1995-04-01), Kado et al.
patent: 5563960 (1996-10-01), Shapiro

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