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Author Nagy, G.
Source ACM Digital Library
Content type Text
Publisher Association for Computing Machinery (ACM)
File Format PDF
Language English
Subject Keyword Size normalization ♦ Handwriting ♦ Pattern preprocessor ♦ Projective transformation ♦ Linear transformation ♦ Central projection ♦ Hand printed characters ♦ Mapping ♦ Normalization ♦ Pattern recognition ♦ Character recognition
Abstract A family of pattern standardization techniques based on geometrical projection is applied to a file of digitized handprinted numerals obtained from sales clerks. The principle involves transforming a quadrilateral specified in terms of the convex hull of each pattern into a square. The amount of overlap within each class of characters versus the amount between classes is used to evaluate the degree of normalization achieved with respect to other published methods including size and shear normalization through moments.
Description Affiliation: IBM Thomas J. Watson Center, Yorktown Heights, NY (Nagy, G.)
Age Range 18 to 22 years ♦ above 22 year
Educational Use Research
Education Level UG and PG
Learning Resource Type Article
Publisher Date 2005-08-01
Publisher Place New York
Journal Communications of the ACM (CACM)
Volume Number 13
Issue Number 8
Page Count 7
Starting Page 475
Ending Page 481


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Source: ACM Digital Library