Recognition of handprinted characters in Italian cadastral maps

Monica Del Buono; L. Boatto; Vincenzo Consorti; Vincenzo Eramo; Alessandra Esposito; F. Melcarne; M. Tucci

doi:10.1117/12.143610

14 April 1993 Recognition of handprinted characters in Italian cadastral maps

Monica Del Buono, L. Boatto, Vincenzo Consorti, Vincenzo Eramo, Alessandra Esposito, F. Melcarne, M. Tucci

Proceedings Volume 1906, Character Recognition Technologies; (1993) https://doi.org/10.1117/12.143610
Event: IS&T/SPIE's Symposium on Electronic Imaging: Science and Technology, 1993, San Jose, CA, United States

Abstract

Automatic understanding of line drawings is a fundamental task in order to feed a Geographic Information System. Furthermore, the amount of alphanumeric data in engineering drawings and maps makes it necessary to automatically process characters and to provide efficient interactive tools for recognition validation. In this paper, we present the character recognition subsystem implemented within a larger system for the automatic interpretation of Italian cadastral maps (A0 format monochrome drawings representing land properties by means of continuous lines, dashed lines, shading patterns, characters, and special symbols). The system relies upon quite general methodologies, and experiments are now in progress on different kinds of line drawings. The character recognition subsystem consists of a sequence of steps -- from the detection of characters within the raster image to the reconstruction of text strings by grouping single characters, from character recognition to the placement of recognized texts in the vector image. Fully automatic steps are followed by interactive sessions, during which an operator checks and corrects the results provided by the system. The system is currently running on two different platforms: (1) S/370 or S/390 architecture running VM/CMS, equipped with IBM 5080 graphic stations, (2) IBM RS/6000 workstation running AIX.

Citation Download Citation

Monica Del Buono, L. Boatto, Vincenzo Consorti, Vincenzo Eramo, Alessandra Esposito, F. Melcarne, and M. Tucci "Recognition of handprinted characters in Italian cadastral maps", Proc. SPIE 1906, Character Recognition Technologies, (14 April 1993); https://doi.org/10.1117/12.143610

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
11 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Optical character recognition

Raster graphics

Visualization

Buildings

Geographic information systems

Binary data

Computing systems

Show All Keywords

Keywords/Phrases

Search In:

Publication Years