A NONLINEAR NORMALIZATION METHOD FOR HAND-PRINTED KANJI CHARACTER-RECOGNITION LINE DENSITY EQUALIZATION

被引：99

作者：

YAMADA, H

YAMAMOTO, K

SAITO, T

机构：

[1] Machine Understanding Division, Electrotechnical Laboratory, Tsukuba, Ibaraki-ken

来源：

PATTERN RECOGNITION | 1990年 / 23卷 / 09期

关键词：

Handprinted character recognition; Line density equalization; Nonlinear normalization; Shape normalization;

D O I：

10.1016/0031-3203(90)90110-7

中图分类号：

TP18 [人工智能理论];

学科分类号：

081104 ; 0812 ; 0835 ; 1405 ;

摘要：

A nonlinear normalization method, the "line density equalization", is proposed, where a resampling is done so as to equate the product of a local line density and a (variable) sampling pitch. Consequently, the line density in the space is homogenized, the efficiency of utilization of the space is increased, and a stable normalization is obtained for partially irregular shape variations. The method was applied to handprinted Kanji character recognition, and its effectiveness has been demonstrated. © 1990.

引用

页码：1023 / 1029

页数：7

共 8 条

[1] MOMENT NORMALIZATION OF HANDPRINTED CHARACTERS [J].

CASEY, RG .

IBM JOURNAL OF RESEARCH AND DEVELOPMENT, 1970, 14 (05) :548-+

[2] SURVEY PF PREPROCESSING AND FEATURE EXTRACTION TECHNIQUES FOR RADIOGRAPHIC IMAGES [J].

HALL, EL ;

KRUGER, RP ;

DWYER, SJ ;

HALL, DL ;

MCLAREN, RW ;

LODWICK, GS .

IEEE TRANSACTIONS ON COMPUTERS, 1971, C 20 (09) :1032-&

[3] RESEARCH ON MACHINE RECOGNITION OF HANDPRINTED CHARACTERS [J].

MORI, S ;

YAMAMOTO, K ;

YASUDA, M .

IEEE TRANSACTIONS ON PATTERN ANALYSIS AND MACHINE INTELLIGENCE, 1984, 6 (04) :386-405

[4]

NAGY G, 1970, COMMUN ACM, V13, P465

[5]

SAITO T, 1982, T IECE JPN D, V65, P550

[6]

TSUKUMO J, 1988, 9TH P ICPR

[7]

Yamada H., 1984, Transactions of the Institute of Electronics and Communication Engineers of Japan, Part D, VJ67D, P1379

[8]

Yasuda M., 1979, T IEICE JAPAN D, VJ62-D, P217

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