NDLI: Quantitative Evaluation of Print Quality for Optical Character Recognition Systems

Content Provider	IEEE Xplore Digital Library
Author	Yamasaki, Issei
Copyright Year	1971
Description	Objective, mechanical, and quantitative evaluation of printed characters is discussed. Print quality can be quantified by the peak value of the print contrast signal (PCS), the average stroke width, the noise factor, and the centroid deviation. An instrument for evaluating a large number of printed characters has been constructed. This instrument consists of a scanner, a minicomputer, and its peripherals. Strains imposed on the scanned data are corrected by using the characteristics of the scanner. Two types of documents are processed by the instrument, and results of evaluation are compared with the performance of an optical character recognition (OCR) system. Experimental results clarify that the proposed evaluation method of print quality can be applied in practice. Also described are a quantitative expression of print quality for a set of input characters and the feasibility of an absolute determination of print quality.
Starting Page	371
Ending Page	381
Page Count	11
File Size	3516196
File Format	PDF
ISSN	00189472
Volume Number	8
Issue Number	5
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1978-05-01
Publisher Place	U.S.A.
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Optical character recognition software Character recognition Instruments Optical noise Personal communication networks Optical distortion Printing ISO Shape measurement Microcomputers
Content Type	Text
Resource Type	Article
Subject	Engineering

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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