Scan encoding of two dimensional pictorial entities

Details Scan encoding of two dimensional pictorial entities Scan encoding of two dimensional pictorial entities

1976-04-12

1978-08-15

Boudreau, Leo H.

Communications: electrical

Digital comparator systems

358261, G06K 912

Patent

active

041076486

ABSTRACT:
A graphic arts image is partitioned into two-dimensional geometrically related pictorial entities known as "blobs" which are susceptible of identification by a number of parameters. An entire picture is scanned, a line at a time, and encoded with variable length Elias and Huffman codes, where the Huffman codes are in accordance with the relative frequencies of particular blob parameters of an ensemble of images, of which the images scanned are particular members thereof. The codes of each scanned line are generated, in real time, solely by comparisons with the immediately preceding scanned line.

REFERENCES:
patent: 3408485 (1968-10-01), Scott et al.
patent: 3801737 (1974-04-01), Komura et al.
patent: 3956580 (1976-05-01), Murayama
Grimsdale et al., "A System for the Automatic Recognition of Patterns," Proc. of I.E.E., vol. 106, Pt. B, No. 26, Mar. 1959, pp. 210-221.
Frank, "High Fidelity Encoding of Two-Level, High Resolution Images," IEEE Int. Conf. on Communications, Session 26, Jun. 1973, pp. 5-10.

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