Abstract
This paper presents an optical reader for blind-people.
This device called D.E.L.T.A., («Dispositif Electronique de Lecture de Texte pour Aveugles») is designed to enable the reading of any kind of font-type character printed for any support (plane or not). D.E.L.T.A. is the only operating system which is portable, and very easy to use. It does not need any training.
This optical character reader consists of a micro-camera with an internal tracking aid system. This micro-camera is connected to a specialized pattern recognition processor.
The recognized characters are generated in a BRAILLE tactile form, on a specific tactile output. The mean efficiency of the system is about 95% for most font-types. Reading can be operated at up to 15 characters a second, at the present time.
This system was designed with the constant advice of blind people.
J. CONTER & M. VALOBRA received the «Docteur-Ingénieur» degree for this work on November 4th, 1980.
Scientist Responsable for this research.
L.S.I. is an associated Laboratory of C.N.R.S. (L.A. 347).
This is a preview of subscription content, log in via an institution.
Buying options
Tax calculation will be finalised at checkout
Purchases are for personal use only
Learn about institutional subscriptionsPreview
Unable to display preview. Download preview PDF.
Bibliographie
S. Castan et G. Perennou Reconnaissance structurelle de graphisme Congrès AFCET-IRIA (1978)
A. Chehikian Un procédé de reconnaissance structurelle des caractères alphanumériques. Congrès AFCET-IRIA (1978)
J. Conter, M. Valobra D.E.L.T.A.: Dispositif Electronique de Lecture de Textes pour Aveugles. Systeme portatif multifonte. These de Docteur-Ingénieur. I.N.P.-U.P.S. TOULOUSE. 1980.
H. Freeman On the encodinf of arbitrary geometric configurations. I.E.E.E. Transactions Electronics Computer. 1961.
H. Freiberger Research Protheses and Sensory aids for the Blind. “8th annual Automatic Image Pattern Recognition Symposium Proceedings” 3–4 Avril 1978.
K.S. FU Syntactic Methods in Pattern Recognition. Academic Press (1974).
G. Gaillat-M. Berthod Panorama des techniques d›extraction de traits caractéristiques en lecture optique. Congrès AFCET-IRIA 1979.
K. Ishii, K. Kanemaki, K. Komori (Nippon Telegraph Yokosuka Japon) Automatic Design of a Character Recognition Dictionnary Based on Feature Concentration Method. 4 th. IJCPR. TOKYO 1978.
KURZWEIL COMPUTER PRODUCTS. Cambridge. Massachussetts. Science Writers Seminar in Ophtalmology. 8–11 Mai 1976.
Lopez-Krahe Etude expérimentale d›une méthode de reconnaissance. l° Congrès AFCET-IRIA. PARIS 1978.
Lopez-Krahe Etude de méthodes de reconnaissance automatique de caractères imprimés. Application à un système de lecture pout aveugles. Thèse présentée à l›Université de PARIS VIII en avril 1979.
Ph. Marthon, A. Bruel, G. Biguet Squelettisation par calcul d›une fonction discriminante sur un voisinage de huit points. Congrès AFCET-IRIA. TOULOUSE. Septembre 1979.
J.H. Mumson, R.E. Savoie, R.P. Shepard System study of an interactive computer. Aided; text reading service for the blind available through any telephone. National Institutes of the Health. Stanford Research Institute.
POSTE TELEGRAPHE, TELEPHONE DES PAYS BAS Méthode pour la reconnaissance de caractères.
M. Rahier, P.G.A. Jespers Microelectronics Laboratories. Catholic University of Louvain. Belgium. A low cost hand-carried OCR system implemented with monolithic IC’s 4 th IJCPR. TOKYO 1978.
J.C. Simon A short survey of character recognition NATO advanced study institute on digital image processing. BONAS 1976.
Schneider-Maunoury. Secrétaire Général de l›Association Valentin HAUY. Rapport sur l›écriture Btaille à l›âge electronique: digicassettes, calculatrices, et production de Braille par ordinateur (Novembre 1978).
B. Thiesse, Ph. Marthon, A. Bruel Recherche optimale de points caractéristiques dans un dictionnaire d›images. Congrès AFCET-IRIA. 12–14 Septembre 1979. TOULOUSE.
T. Vo Van Une méthode de reconnaissance de caractères (latins et chinois) non stylisés. Congrès AFCET-IRIA. 1978.
J. Conter, M. Valobra, A. Bruel A low cost, portable, optical character reader for blind. Conference on pattern recognition and image processing. August 1981. DALLAS. U.S.A.
A. Bruel, J. Conter, M. Valobra Procédé de lecture pour non-voyants et dispositif pour la mise en oeuvre du procédé. Brevet d›invention n° 80.23771. 4 Novembre 1980.
G. Victoria Saisie interactive de textes par lecture optique de caractères. Application à la réalisation d›une maquette probatoire de lecteur pour la bureautique. Thèse de 3° Cycle. Université Paul Sabatier. Toulouse. Novembre 1983.
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 1986 ECSC, EEC, EAEC, Brussels-Luxembourg
About this chapter
Cite this chapter
Conter, J., Alet, S., Puech, P., Bruel, A. (1986). A Low Cost, Portable, Optical Character Reader for the Blind. In: Emiliani, P.L. (eds) Development of Electronic Aids for the Visually Impaired. Documenta Ophthalmologica Proceedings Series, vol 47. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-4281-3_15
Download citation
DOI: https://doi.org/10.1007/978-94-009-4281-3_15
Publisher Name: Springer, Dordrecht
Print ISBN: 978-94-010-8402-4
Online ISBN: 978-94-009-4281-3
eBook Packages: Springer Book Archive