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Listar por autor "Álvaro Muñoz, Francisco"

Mostrando ítems 1-9 de 9

An Image-Based Measure for Evaluation of Mathematical Expression Recognition

Álvaro Muñoz, Francisco; Sánchez Peiró, Joan Andreu; Benedí Ruiz, José Miguel (Springer, 2013)

Mathematical expression recognition is an active research field that is related to document image analysis and typesetting. In this study, we present a novel global performance evaluation measure for mathematical expression ...
An integrated grammar-based approach for mathematical expression recognition

Álvaro Muñoz, Francisco; Sánchez Peiró, Joan Andreu; Benedí Ruiz, José Miguel (Elsevier, 2016)

Automatic recognition of mathematical expressions is a challenging pattern recognition problem since there are many ambiguities at different levels. On the one hand, the recognition of the symbols of the mathematical ...
IMEGE: Image-based Mathematical Expression Global Error

Álvaro Muñoz, Francisco; Sánchez Peiró, Joan Andreu; Benedí Ruiz, José Miguel (Universitat Politècnica de València, 2011-11-16)

Mathematical expression recognition is an active research eld that is related to document image analysis and typesetting. Several approaches have been proposed to tackle this problem, and automatic methods for performance ...
Mathematical Expression Recognition based on Probabilistic Grammars

Álvaro Muñoz, Francisco (Universitat Politècnica de València, 2015-06-15)

[EN] Mathematical notation is well-known and used all over the world. Humankind has evolved from simple methods representing countings to current well-defined math notation able to account for complex problems. Furthermore, ...
Off-line Recognition of Printed Mathematical Expressions Using Stochastic Context-Free Grammars

Álvaro Muñoz, Francisco (Universitat Politècnica de València, 2011-11-29)

Off-line recognition of printed mathematical expressions consists of three major steps: segmentation, symbol recognition and structural analysis. In this work we study an approach based on a twodimensional extension of ...
Offline Features for Classifying Handwritten Math Symbols with Recurrent Neural Networks

Álvaro Muñoz, Francisco; Sánchez Peiró, Joan Andreu; Benedí Ruiz, José Miguel (IEEE, 2014-08)

In mathematical expression recognition, symbol classification is a crucial step. Numerous approaches for recognizing handwritten math symbols have been published, but most of them are either an online approach or a ...
Page Segmentation of Structured Documents Using 2D Stochastic Context-Free Grammars

Álvaro Muñoz, Francisco; Cruz Fernández, Francisco; Sánchez Peiró, Joan Andreu; Ramos Terrades, Oriol; Benedí Ruiz, José Miguel (Springer, 2013)

n this paper we define a bidimensional extension of Stochastic Context-Free Grammars for page segmentation of structured documents. Two sets of text classification features are used to perform an initial classification of ...
Recognition of on-line handwritten mathematical expressions using 2D stochastic context-free grammars and hidden Markov models

Álvaro Muñoz, Francisco; Sánchez Peiró, Joan Andreu; Benedí Ruiz, José Miguel (Elsevier, 2014-01)

[EN] This paper describes a formal model for the recognition of on-line handwritten mathematical expressions using 2D stochastic context-free grammars and hidden Markov models. Hidden Markov models are used to recognize ...
Structure detection and segmentation of documents using 2D stochastic context-free grammars

Álvaro Muñoz, Francisco; Cruz Fernández, Francisco; Sánchez Peiró, Joan Andreu; Ramos Terrades, Oriol; Benedí Ruiz, José Miguel (Elsevier, 2015-02-20)

[EN] In this paper we define a bidimensional extension of stochastic context-free grammars for structure detection and segmentation of images of documents. Two sets of text classification features are used to perform an ...