DocumentCode :
1474418
Title :
Automatic recognition of low-quality printed characters using analogue techniques
Author :
Parks, J.R.
Volume :
34
Issue :
2
fYear :
1967
fDate :
8/1/1967 12:00:00 AM
Firstpage :
67
Lastpage :
80
Abstract :
After comment on the obvious disparity between the print quality accepted as normal for human reading and the much higher quality needed for machine reading, a system is proposed and results of a simulation study presented for reducing this gap. The system employs a modified form of auto-correlation to extract characteristic properties from which specimen unknown characters can be identified by a simple recognition logic. In order to avoid the problem of representing the continuous grey-tone density scale of low quality print as a two state (binary) variable, analogue techniques are proposed for use in the system. Using a computer simulation of the proposed system a limited number of printed samples of exaggerated quality distribution are used to explore the limits of performance of the system. Numerical results are given and factors effecting performance discussed.
Keywords :
computer applications; printing;
fLanguage :
English
Journal_Title :
Radio and Electronic Engineer
Publisher :
iet
ISSN :
0033-7722
Type :
jour
DOI :
10.1049/ree.1967.0067
Filename :
5267147
Link To Document :
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