Correcting method for directional data of streaked patterns and

Details Correcting method for directional data of streaked patterns and Correcting method for directional data of streaked patterns and

1994-08-31

1996-05-21

Boudreau, Leo

Image analysis

Applications

Personnel identification

382311, G06K 903

Patent

active

055197850

ABSTRACT:
A method and an apparatus for correcting directional data and pitch data are provided. Initially, a picture of a streaked pattern and corresponding directional data having a plurality of zones are entered and displayed on a display unit. The operator then designates the areas to be corrected in the direction data by designating a contour and direction indicating lines. The directions of the zones through which the direction indicating lines pass are set to the directions of these indicating lines. Subsequently, the directions of zones where the direction was not set are calculated so as to minimize a function H. With the distance between a zone Z and a defined zone Zi being represented by Ri, the function H is set so that the correlation between the direction D of the zone Z and the direction Di of the defined zone Zi improves as the value of Ri decreases.

REFERENCES:
patent: 4047154 (1977-09-01), Vitols et al.
patent: 5140642 (1992-08-01), Hsu et al.
patent: 5187747 (1993-02-01), Capello et al.

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