Linear cursor representation method

Details Linear cursor representation method Linear cursor representation method

1986-04-15

1989-03-28

Boudreau, Leo H.

Image analysis

Histogram processing

For setting a threshold

340709, 340727, 340734, 382 28, G06K 900, G06F 3153

Patent

active

048171786

ABSTRACT:
To measure a line width of a linear portion of a digital image maintaining a precision finer than a picture element, a digital linear cursor pattern represented by digital picture elements is generated, the pattern is inclined with respect to the horizontal direction by an angle which maximizes the measuring precision, and the pattern is fitted to a linear portion to be measured, to thereby measure the width of a line.

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patent: 4611232 (1986-09-01), Searby
patent: 4624537 (1986-11-01), Hanssen et al.
Dorst et al, "Spirograph Theory: A Framework for Calculations on Digitized Straight Lines", Trans on Pattern Analysis & Machine Intelligence, vol. PAMI-6, No. 5, Sep. 1984, pp. 632-638.

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