Convolution filtering for decoding self-clocking glyph shape cod

Details Convolution filtering for decoding self-clocking glyph shape cod Convolution filtering for decoding self-clocking glyph shape cod

1990-07-31

1992-07-07

Pitts, Harold

Registers

Coded record sensors

Particular sensor structure

235456, 235494, G06K 710, G06K 714

Patent

active

051285258

ABSTRACT:
Weighted and unweighted convolution filtering processes are provided for decoding bitmap image space representations of self-clocking glyph shape codes and for tracking the number and locations of the ambiquities or "errors" that are encountered during the decoding. This error detection may be linked to or compared against the error statistics from an alternative decoding process, such as the binary image processing techniques that are described herein to increase the reliability of the decoding that is obtained.

REFERENCES:
patent: 3973239 (1976-08-01), Kakumoto et al.
patent: 4286146 (1981-08-01), Uno et al.
patent: 4326252 (1982-04-01), Kohno et al.
patent: 4610025 (1986-09-01), Blum et al.
patent: 4783840 (1988-11-01), Song

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