Disparity detection apparatus

Details Disparity detection apparatus Disparity detection apparatus

1981-09-09

1983-11-29

Boudreau, Leo H.

Image analysis

Histogram processing

For setting a threshold

382 57, G06K 900

Patent

active

044184239

ABSTRACT:
Responsive to each character field, a word recognition apparatus separates a first train of characters .alpha..sub.1, .alpha..sub.2, . . . .alpha..sub.n, which are regarded as characters of a first kind, and a second train of characters .beta..sub.1, .beta..sub.2, . . . .beta..sub.n, which are regarded as characters of second kind. First and second registers store the first and second train of characters, respectively. A first storage device stores a first kind of intercharacter distance of the first kind of characters and a second storage device stores a second kind of intercharacter distance of the second kind of characters. A third storage device stores a dictionary of words, which is compared with the output character train of the character reader. The first and second kinds of intercharacter distances in the dictionary words are compared with items in the contents of the first and second registers. The intercharacter distance comparisons result in a selection of a smaller of at least two values as a representative intercharacter distance between a character the dictionary word and first and second kind of characters. A disparity between the dictionary word and the character output trains is resolved by a use of a representative character distances which is selected by the comparing means.

REFERENCES:
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patent: 3839702 (1974-10-01), Chaires et al.
patent: 3969698 (1976-07-01), Bollinger et al.
patent: 3988715 (1976-10-01), Mullan et al.
patent: 4003025 (1977-01-01), Hilliard et al.
patent: 4058795 (1977-11-01), Balm
patent: 4355302 (1982-10-01), Aldefeld et al.

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