On-line handwritten formula recognition using hidden Markov models and context dependent graph grammars

Andreas Kosmala, Gerhard Rigoll, Stéphane Lavirotte, Loïc Pottier

Publikation: Beitrag in Buch/Bericht/KonferenzbandKonferenzbeitragBegutachtung

37 Zitate (Scopus)

Abstract

This paper presents an approach for the recognition of on-line handwritten mathematical expressions. The hidden Markov model (HMM) based system makes use of simultaneous segmentation and recognition capabilities, avoiding a crucial segmentation during pre-processing. With the segmentation and recognition results, obtained from the HMM recognizer it is possible to analyze and interpret the spatial two-dimensional arrangement of the symbols. We use a graph grammar approach for the structure recognition, also used in off-line recognition process, resulting in a general tree-structure of the underlying input-expression. The resulting constructed tree can be translated to any desired syntax (for example: Lisp, KTEX, and OpenMath).

OriginalspracheEnglisch
TitelProceedings of the 5th International Conference on Document Analysis and Recognition, ICDAR 1999
Herausgeber (Verlag)IEEE Computer Society
Seiten107-110
Seitenumfang4
ISBN (elektronisch)0769503187
DOIs
PublikationsstatusVeröffentlicht - 1999
Extern publiziertJa
Veranstaltung5th International Conference on Document Analysis and Recognition, ICDAR 1999 - Bangalore, Indien
Dauer: 20 Sept. 199922 Sept. 1999

Publikationsreihe

NameProceedings of the International Conference on Document Analysis and Recognition, ICDAR
ISSN (Print)1520-5363

Konferenz

Konferenz5th International Conference on Document Analysis and Recognition, ICDAR 1999
Land/GebietIndien
OrtBangalore
Zeitraum20/09/9922/09/99

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