Method and apparatus for augmenting binary patterns

Details Method and apparatus for augmenting binary patterns Method and apparatus for augmenting binary patterns

1980-03-27

1981-11-03

Boudreau, Leo H.

Communications: electrical

Digital comparator systems

358260, G06K 952

Patent

active

042988586

ABSTRACT:
The conversion of simple "1" and "0" PIXELS of a binary pattern into PIXELS with numerical values dependent upon relative location in the original pattern is realized by a technique that identifies various types of PIXELS including the edge PIXELS in contiguous groups of "1" PIXELS. A multilevel pattern using the various types of PIXELS is developed and a numerical value assigned to each PIXEL. The numerical value for each PIXEL is a function of its own type and the types of its near neighbor PIXELS. Pattern measurements for the augmented pattern are less sensitive to erroneous cell deletions than for simple binary patterns. The technique is implemented by a simple mechanization for generating the augmented pattern. The mechanization is characterized by operations that are easily implemented in a real time environment using standard digital logic devices.

REFERENCES:
patent: 3737855 (1973-06-01), Cutaia
patent: 3761876 (1973-09-01), Flaherty et al.
patent: 4047152 (1977-09-01), Giuliano et al.
patent: 4119947 (1978-10-01), Leighton et al.
patent: 4205341 (1980-05-01), Mitsuya et al.
Hall et al., "Analog Thresholding Scheme For Medium Resolution Scanners" IBM Tech. Disc. Bulletin, vol. 14, No. 6, Nov., 1971, pp. 1926-1927.

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