Mobilní systém pro rozpoznání textu na Androidu

English title

Mobile System for Text Recognition on Android

Language

Czech

Abstract

This thesis deals with creation of a mobile library for preprocessing of images with text which represents a part of a system for text recognition. The library is realized with emphasis on generality of use, efficiency and portability. The library providing a set of algorithms primarily for image quality assessment and text detection was created in this thesis. These algorithms enable a substantial decrease in volume of transmitted data and speed up and refinement of the recognition process. An example application for the Android platform able to analyze composition of foods stated on their wrappings was created as well. Overall, the library (system) simplifies development of mobile applications with focus on text extraction and analysis. The mobile application then provides a comfortable way of food harmfulness verification. The thesis offers a reader an overview of current solutions and tools available in this field, it provides a breakdown of important image preprocessing algorithms and guides him through the construction of the library and the application for mobile devices.

Keywords

Image preprocessing, text recognition, mobile library, mobile system, mobile device, smartphone, Android, mobile application, food composition

Department

Department of Computer Graphics and Multimedia FIT BUT

Degree Programme

Information Technology, Field of Study Computer Graphics and Multimedia

Files

Status

defended, grade A

Date

19 June 2017

Reviewer

Kolář Martin, Ph.D.

Committee

Zemčík Pavel, prof. Dr. Ing. (DCGM FIT BUT), předseda
Beran Vítězslav, doc. Ing., Ph.D. (DCGM FIT BUT), člen
Bidlo Michal, doc. Ing., Ph.D. (DCSY FIT BUT), člen
Češka Milan, prof. RNDr., CSc. (DITS FIT BUT), člen
Herout Adam, prof. Ing., Ph.D. (DCGM FIT BUT), člen
Vranić Valentino, doc. Ing., Ph.D. (FIIT STU), člen

Citation

TOMEŠEK, Jan. Mobilní systém pro rozpoznání textu na Androidu. Brno, 2017. Master's Thesis. Brno University of Technology, Faculty of Information Technology. 2017-06-19. Supervised by Zemčík Pavel. Available from: https://www.fit.vut.cz/study/thesis/19683/

BibTeX

@mastersthesis{FITMT19683,
    author = "Jan Tome\v{s}ek",
    type = "Master's thesis",
    title = "Mobiln\'{i} syst\'{e}m pro rozpozn\'{a}n\'{i} textu na Androidu",
    school = "Brno University of Technology, Faculty of Information Technology",
    year = 2017,
    location = "Brno, CZ",
    language = "czech",
    url = "https://www.fit.vut.cz/study/thesis/19683/"
}