FR2453451A1 - Machine a lire pour aveugles - Google Patents

Machine a lire pour aveugles

Info

Publication number
FR2453451A1
FR2453451A1 FR7908466A FR7908466A FR2453451A1 FR 2453451 A1 FR2453451 A1 FR 2453451A1 FR 7908466 A FR7908466 A FR 7908466A FR 7908466 A FR7908466 A FR 7908466A FR 2453451 A1 FR2453451 A1 FR 2453451A1
Authority
FR
France
Prior art keywords
photoreceivers
box
braille
opening
signals
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
FR7908466A
Other languages
English (en)
Other versions
FR2453451B1 (fr
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to FR7908466A priority Critical patent/FR2453451B1/fr
Publication of FR2453451A1 publication Critical patent/FR2453451A1/fr
Application granted granted Critical
Publication of FR2453451B1 publication Critical patent/FR2453451B1/fr
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
    • G09B21/00—Teaching, or communicating with, the blind, deaf or mute
    • G09B21/001—Teaching or communicating with blind persons
    • G09B21/007—Teaching or communicating with blind persons using both tactile and audible presentation of the information
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V10/00—Arrangements for image or video recognition or understanding
    • G06V10/10—Image acquisition
    • G06V10/12—Details of acquisition arrangements; Constructional details thereof
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V10/00—Arrangements for image or video recognition or understanding
    • G06V10/20—Image preprocessing
    • G06V10/24—Aligning, centring, orientation detection or correction of the image
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V10/00—Arrangements for image or video recognition or understanding
    • G06V10/40—Extraction of image or video features
    • G06V10/42—Global feature extraction by analysis of the whole pattern, e.g. using frequency domain transformations or autocorrelation
    • G06V10/421—Global feature extraction by analysis of the whole pattern, e.g. using frequency domain transformations or autocorrelation by analysing segments intersecting the pattern
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V10/00—Arrangements for image or video recognition or understanding
    • G06V10/70—Arrangements for image or video recognition or understanding using pattern recognition or machine learning
    • G06V10/74—Image or video pattern matching; Proximity measures in feature spaces
    • G06V10/75—Organisation of the matching processes, e.g. simultaneous or sequential comparisons of image or video features; Coarse-fine approaches, e.g. multi-scale approaches; using context analysis; Selection of dictionaries

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Educational Technology (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Business, Economics & Management (AREA)
  • Educational Administration (AREA)
  • Artificial Intelligence (AREA)
  • Computing Systems (AREA)
  • Databases & Information Systems (AREA)
  • Evolutionary Computation (AREA)
  • Medical Informatics (AREA)
  • Software Systems (AREA)
  • Character Input (AREA)

Abstract

a. Machine à lire les caractères alphanumériques pour aveugles. b. Elle comprend une caméra de lecture pourvue d'une matrice de photorécepteurs, de moyens d'éclairage d'un texte à lire, de moyens projection successive des caractères lus sur la matrice de photorécepteurs de façon à obtenir une image matricielle de ces caractères; des moyens de coder chaque caractère projeté sur la matrice de photorécepteurs en deux mots de définition, un mot horizontal et un mot vertical; des moyens de comparaison des mots de définition du caractère lu à des mots définissant des caractères types permettant d'identifier le caractère alphanumérique lu; et des moyens d'activer dans un générateur de caractères Braille, le caractère Braille correspondant au caractère alphanumérique lu. c. Lecture des aveugles.
FR7908466A 1979-04-04 1979-04-04 Machine a lire pour aveugles Expired FR2453451B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7908466A FR2453451B1 (fr) 1979-04-04 1979-04-04 Machine a lire pour aveugles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7908466A FR2453451B1 (fr) 1979-04-04 1979-04-04 Machine a lire pour aveugles

Publications (2)

Publication Number Publication Date
FR2453451A1 true FR2453451A1 (fr) 1980-10-31
FR2453451B1 FR2453451B1 (fr) 1985-11-08

Family

ID=9223943

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7908466A Expired FR2453451B1 (fr) 1979-04-04 1979-04-04 Machine a lire pour aveugles

Country Status (1)

Country Link
FR (1) FR2453451B1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0544432A2 (fr) * 1991-11-19 1993-06-02 Xerox Corporation Procédé et appareil de traitement de documents
EP0892964A1 (fr) * 1996-02-13 1999-01-27 James T. Sears Dispositif de lecture a sortie vocale et guidage tactile
WO2010067203A3 (fr) * 2008-12-08 2010-08-26 Georgios Stylianou Assistance visuelle au moyen d'un téléphone mobile

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2616983A (en) * 1949-01-03 1952-11-04 Rca Corp Apparatus for indicia recognition
US3167746A (en) * 1962-09-20 1965-01-26 Ibm Specimen identification methods and apparatus
NL6909997A (fr) * 1969-06-30 1971-01-04
US3992697A (en) * 1974-12-27 1976-11-16 Scan-Data Corporation Character recognition system utilizing feature extraction

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2616983A (en) * 1949-01-03 1952-11-04 Rca Corp Apparatus for indicia recognition
US3167746A (en) * 1962-09-20 1965-01-26 Ibm Specimen identification methods and apparatus
NL6909997A (fr) * 1969-06-30 1971-01-04
US3992697A (en) * 1974-12-27 1976-11-16 Scan-Data Corporation Character recognition system utilizing feature extraction

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
EXBK/62 *
EXBK/72 *

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0544432A2 (fr) * 1991-11-19 1993-06-02 Xerox Corporation Procédé et appareil de traitement de documents
EP0544432A3 (en) * 1991-11-19 1993-12-22 Xerox Corp Method and apparatus for document processing
EP0892964A1 (fr) * 1996-02-13 1999-01-27 James T. Sears Dispositif de lecture a sortie vocale et guidage tactile
EP0892964A4 (fr) * 1996-02-13 2000-02-23 James T Sears Dispositif de lecture a sortie vocale et guidage tactile
WO2010067203A3 (fr) * 2008-12-08 2010-08-26 Georgios Stylianou Assistance visuelle au moyen d'un téléphone mobile
US8331628B2 (en) 2008-12-08 2012-12-11 Georgios Stylianou Vision assistance using mobile telephone

Also Published As

Publication number Publication date
FR2453451B1 (fr) 1985-11-08

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Legal Events

Date Code Title Description
TP Transmission of property
ST Notification of lapse