Face image processing system

Details Face image processing system Face image processing system

1998-01-05

2000-04-25

Couso, Jose L.

Image analysis

Applications

Personnel identification

382115, G06K 900

Patent

active

060553235

ABSTRACT:
A face image processing system capable of setting an eye detecting region with ease and high accuracy by making use of the position and the width of the nares presenting a unique shape among the face characterizing features. The system mentioned above includes a face image input means for inputting a face image, a binarizing means for binarizing the face image as inputted, a characteristic element extracting means for extracting face characterizing elements from a binary image outputted from the binarizing means, a naris extracting means for extracting nares from the characteristic elements extracted, and an eye extracting means for setting an eye detecting region with reference to a reference position provided by the nares for thereby extracting the eyes. The naris extracting means is comprised of a naris-width threshold value setting means for setting a naris-width threshold value for extracting naris candidates, a naris candidate extracting means for extracting naris candidates by using the naris-width threshold value, a naris region specifying means for specifying a naris region on the basis of the naris candidates, and a reference position setting means for setting a reference position for the specified naris region.

REFERENCES:
patent: 5293427 (1994-03-01), Ueno et al.
patent: 5481622 (1996-01-01), Gerhardt et al.
patent: 5859921 (1999-01-01), Suzuki

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