Book ChapterDOI
Structural Analysis of Offline Handwritten Mathematical Expressions
TLDR
In this article, a two-dimensional, stochastic context-free grammar is used for the structural analysis of offline handwritten mathematical expressions in a document image and the spatial relation between characters in an expression has been incorporated so that the structural variability in handwritten expressions can be tackled.Abstract:
Structural analysis helps in parsing the mathematical expressions. Various approaches for structural analysis have been reported in literature, but they mainly deal with online and printed expressions. In this work, two-dimensional, stochastic context-free grammar is used for the structural analysis of offline handwritten mathematical expressions in a document image. The spatial relation between characters in an expression has been incorporated so that the structural variability in handwritten expressions can be tackled.read more
References
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Proceedings ArticleDOI
Recognition of Printed Mathematical Expressions Using Two-Dimensional Stochastic Context-Free Grammars
TL;DR: A statistical framework based on two-dimensional stochastic context-free grammars has been defined that allows to jointly tackle the segmentation, symbol recognition and structural analysis of a mathematical expression by computing its most probable parsing.
Proceedings ArticleDOI
On-line handwritten formula recognition using statistical methods
A. Kosmala,G. Rigoll +1 more
TL;DR: This paper presents the design of a system for the processing and recognition of online handwritten mathematical formulas with the introduction of some constraints, and to transform the transcriptions of the formulas into T/sub E/X-syntax in order to achieve a convenient visualization of the results.
Book ChapterDOI
Automatic perception of the structure of handwritten mathematical expressions
Claudie Faure,Zi Xiong Wang +1 more
Proceedings ArticleDOI
Offline Features for Classifying Handwritten Math Symbols with Recurrent Neural Networks
TL;DR: The performance of several well-known offline features for handwritten math symbol recognition are assessed and a novel set of features based on polar histograms and the vertical repositioning method for feature extraction is tested.
Proceedings ArticleDOI
A technique of mathematical expression structure analysis for the handwriting input system
R. Fukuda,I. Sou,F. Tamari +2 more
TL;DR: A new practical user interface to input mathematical expressions into a computer using a data tablet or an electron board and the system recognizes mathematical expressions of high school level (until the first year of university), and the results are output in LATEX-source format.