Two-dimensional image processing method and apparatus for approx

Details Two-dimensional image processing method and apparatus for approx Two-dimensional image processing method and apparatus for approx

1992-01-22

1996-10-22

Boudreau, Leo

Image analysis

Pattern recognition

Feature extraction

382203, 382241, G06K 946

Patent

active

055685676

ABSTRACT:
Two-dimensional image data of an object is processed to inspect a circular arc configuration of the object. Initially, the two-dimensional image data is subjected to a data extraction process in which image edge points of the circular arc configuration of the object are extracted from the two-dimensional image data. The image edge points are then applied to a process to approximate the circular arc configuration of the object by defining a circle which minimizes a mean value of a fourth power error of the image edge points relative to the circle, the thus defined circle being used to approximate the circular arc configuration of the object.

REFERENCES:
patent: 4288852 (1981-09-01), Holland
patent: 4361830 (1982-11-01), Honma et al.
patent: 4618989 (1986-10-01), Tsukune et al.
patent: 4644583 (1987-02-01), Watanabe et al.
patent: 4797939 (1989-01-01), Hoki et al.
patent: 4914601 (1990-04-01), Smyth

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