Thesis Details

Modul pro rozpoznávání nápisů pro robota

Bachelor's Thesis Student: Hartman Zdeněk Academic Year: 2014/2015 Supervisor: Španěl Michal, Ing., Ph.D.
English title
Automatic Text Recognition for Robots
Language
Czech
Abstract

This bachelor thesis describe module design for text detection and recognition for use in robotic systems. To detect charters is used Stroke Width transform, which is applied on the input edge image. In the output image after Stroke Width transform are found connected components. For letter grouping into a words is used Hough transform, which is applied on the created binary image. This image contains points, which corresponding positions of found connected components. To recognize signs in detected areas is used Tesseract library. Before recognition detected areas are extracted and rotated into a horizontal position. This proposed detector can detect even rotated text.  Accuracy of detection of the text is 75% above the test set "informační tabule".

Keywords

Text detection, text recognition, Stroke Width transform, SWT, Canny Edge detector, Hough transform, connected components, CCs, Flood Fill, OCR, Tesseract.

Department
Department of Computer Graphics and Multimedia FIT BUT
Degree Programme
Information Technology
Files
Status
defended, grade B
Date
15 June 2015
Reviewer
Materna Zdeněk, Ing., Ph.D.
Committee
Smrž Pavel, doc. RNDr., Ph.D. (DCGM FIT BUT), předseda
Beran Vítězslav, doc. Ing., Ph.D. (DCGM FIT BUT), člen
Drábek Vladimír, doc. Ing., CSc. (DCSY FIT BUT), člen
Orság Filip, Ing., Ph.D. (DITS FIT BUT), člen
Ryšavý Ondřej, doc. Ing., Ph.D. (DIFS FIT BUT), člen
Citation
HARTMAN, Zdeněk. Modul pro rozpoznávání nápisů pro robota. Brno, 2015. Bachelor's Thesis. Brno University of Technology, Faculty of Information Technology. 2015-06-15. Supervised by Španěl Michal. Available from: https://www.fit.vut.cz/study/thesis/17288/
BibTeX 
@bachelorsthesis{FITBT17288,
    author = "Zden\v{e}k Hartman",
    type = "Bachelor's thesis",
    title = "Modul pro rozpozn\'{a}v\'{a}n\'{i} n\'{a}pis\r{u} pro robota",
    school = "Brno University of Technology, Faculty of Information Technology",
    year = 2015,
    location = "Brno, CZ",
    language = "czech",
    url = "https://www.fit.vut.cz/study/thesis/17288/"
}

Theses

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