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Feature extraction methods for character recognition : a survey

Identifieur interne : 000A11 ( PascalFrancis/Corpus ); précédent : 000A10; suivant : 000A12

Feature extraction methods for character recognition : a survey

Auteurs : D. Trier ; A. K. Jain ; T. Taxt

Source :

RBID : Pascal:96-0217076

Descripteurs français

English descriptors

Abstract

This paper presents an overview of feature extraction methods for off-line recognition of segmented (isolated) characters. Selection of a feature extraction method is probably the single most important factor in achieving high recognition performance in character recognition systems. Different feature extraction methods are designed for different representations of the characters, such as solid binary characters, character contours, skeletons (thinned characters) or gray-level subimages of each individual character. The feature extraction methods are discussed in terms of invariance properties, reconstructability and expected distortions and variability of the characters. The problem of choosing the appropriate feature extraction method for a given application is also discussed. When a few promising feature extraction methods have been identified, they need to be evaluated experimentally to find the best method for the given application.

Notice en format standard (ISO 2709)

Pour connaître la documentation sur le format Inist Standard.

pA  
A01 01  1    @0 0031-3203
A02 01      @0 PTNRA8
A03   1    @0 Pattern recogn.
A05       @2 29
A06       @2 4
A08 01  1  ENG  @1 Feature extraction methods for character recognition : a survey
A11 01  1    @1 TRIER (Ø. D.)
A11 02  1    @1 JAIN (A. K.)
A11 03  1    @1 TAXT (T.)
A14 01      @1 Department of Informatics, University of Oslo, P.O. Box 1080 Blindern @2 0316 Oslo @3 NOR @Z 1 aut. @Z 3 aut.
A20       @1 641-662
A21       @1 1996
A23 01      @0 ENG
A43 01      @1 INIST @2 15220 @5 354000055441360100
A44       @0 0000
A45       @0 92 ref.
A47 01  1    @0 96-0217076
A60       @1 P
A61       @0 A
A64 01  1    @0 Pattern recognition
A66 01      @0 GBR
C01 01    ENG  @0 This paper presents an overview of feature extraction methods for off-line recognition of segmented (isolated) characters. Selection of a feature extraction method is probably the single most important factor in achieving high recognition performance in character recognition systems. Different feature extraction methods are designed for different representations of the characters, such as solid binary characters, character contours, skeletons (thinned characters) or gray-level subimages of each individual character. The feature extraction methods are discussed in terms of invariance properties, reconstructability and expected distortions and variability of the characters. The problem of choosing the appropriate feature extraction method for a given application is also discussed. When a few promising feature extraction methods have been identified, they need to be evaluated experimentally to find the best method for the given application.
C02 01  X    @0 001D02C03
C03 01  X  FRE  @0 Extraction forme @5 01
C03 01  X  ENG  @0 Pattern extraction @5 01
C03 01  X  SPA  @0 Extracción forma @5 01
C03 02  X  FRE  @0 Reconnaissance caractère @5 02
C03 02  X  ENG  @0 Character recognition @5 02
C03 02  X  SPA  @0 Reconocimiento carácter @5 02
C03 03  X  FRE  @0 Reconnaissance image @5 03
C03 03  X  ENG  @0 Image recognition @5 03
C03 03  X  SPA  @0 Reconocimiento imagen @5 03
C03 04  X  FRE  @0 Invariance @5 04
C03 04  X  ENG  @0 Invariance @5 04
C03 04  X  SPA  @0 Invarianza @5 04
C03 05  X  FRE  @0 Reconstructability @4 INC @5 72
C03 06  X  FRE  @0 Character representation @4 INC @5 73
C03 07  X  FRE  @0 OCR @4 CD @5 96
C03 07  X  ENG  @0 OCR @4 CD @5 96
N21       @1 148

Format Inist (serveur)

NO : PASCAL 96-0217076 INIST
ET : Feature extraction methods for character recognition : a survey
AU : TRIER (Ø. D.); JAIN (A. K.); TAXT (T.)
AF : Department of Informatics, University of Oslo, P.O. Box 1080 Blindern/0316 Oslo/Norvège (1 aut., 3 aut.)
DT : Publication en série; Niveau analytique
SO : Pattern recognition; ISSN 0031-3203; Coden PTNRA8; Royaume-Uni; Da. 1996; Vol. 29; No. 4; Pp. 641-662; Bibl. 92 ref.
LA : Anglais
EA : This paper presents an overview of feature extraction methods for off-line recognition of segmented (isolated) characters. Selection of a feature extraction method is probably the single most important factor in achieving high recognition performance in character recognition systems. Different feature extraction methods are designed for different representations of the characters, such as solid binary characters, character contours, skeletons (thinned characters) or gray-level subimages of each individual character. The feature extraction methods are discussed in terms of invariance properties, reconstructability and expected distortions and variability of the characters. The problem of choosing the appropriate feature extraction method for a given application is also discussed. When a few promising feature extraction methods have been identified, they need to be evaluated experimentally to find the best method for the given application.
CC : 001D02C03
FD : Extraction forme; Reconnaissance caractère; Reconnaissance image; Invariance; Reconstructability; Character representation; OCR
ED : Pattern extraction; Character recognition; Image recognition; Invariance; OCR
SD : Extracción forma; Reconocimiento carácter; Reconocimiento imagen; Invarianza
LO : INIST-15220.354000055441360100
ID : 96-0217076

Links to Exploration step

Pascal:96-0217076

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