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Author |
Partha Pratim Roy; Josep Llados; Umapada Pal |
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Title |
Text/Graphics Separation in Color Maps |
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2007 |
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International Conference on Computing: Theory and Applications |
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545–551 |
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Kolkata (India) |
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ICCTA |
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DAG @ dag @ RLP2007a |
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806 |
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Author |
Marçal Rusiñol; Josep Llados; Philippe Dosch |
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Title |
Camera-Based Graphical Symbol Detection |
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Conference Article |
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2007 |
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9th IEEE International Conference on Document Analysis and Recognition |
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2 |
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884–888 |
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Curitiba (Brazil) |
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ICDAR |
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DAG @ dag @ RLD2007 |
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848 |
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Author |
Marçal Rusiñol; Philippe Dosch; Josep Llados |
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Title |
Boundary Shape Recognition Using Accumulated Length and Angle Information |
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Book Chapter |
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Year |
2007 |
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3rd Iberian Conference on Pattern Recognition and Image Analysis (IbPRIA 2007), J. Marti et al. (Eds.) LNCS 4478:210–217 |
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Girona (Spain) |
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DAG @ dag @ RDL2007 |
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778 |
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Author |
Marçal Rusiñol; K. Bertet; Jean-Marc Ogier; Josep Llados |
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Title |
Symbol Recognition Using a Concept Lattice of Graphical Patterns |
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Conference Article |
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2009 |
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8th IAPR International Workshop on Graphics Recognition |
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In this paper we propose a new approach to recognize symbols by the use of a concept lattice. We propose to build a concept lattice in terms of graphical patterns. Each model symbol is decomposed in a set of composing graphical patterns taken as primitives. Each one of these primitives is described by boundary moment invariants. The obtained concept lattice relates which symbolic patterns compose a given graphical symbol. A Hasse diagram is derived from the context and is used to recognize symbols affected by noise. We present some preliminary results over a variation of the dataset of symbols from the GREC 2005 symbol recognition contest. |
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La Rochelle; July 2009 |
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GREC |
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DAG @ dag @ RBO2009 |
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1444 |
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Author |
Marçal Rusiñol; Agnes Borras; Josep Llados |
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Title |
Relational Indexing of Vectorial Primitives for Symbol Spotting in Line-Drawing Images |
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Journal Article |
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Year |
2010 |
Publication |
Pattern Recognition Letters |
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PRL |
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31 |
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3 |
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188–201 |
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Document image analysis and recognition, Graphics recognition, Symbol spotting ,Vectorial representations, Line-drawings |
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This paper presents a symbol spotting approach for indexing by content a database of line-drawing images. As line-drawings are digital-born documents designed by vectorial softwares, instead of using a pixel-based approach, we present a spotting method based on vector primitives. Graphical symbols are represented by a set of vectorial primitives which are described by an off-the-shelf shape descriptor. A relational indexing strategy aims to retrieve symbol locations into the target documents by using a combined numerical-relational description of 2D structures. The zones which are likely to contain the queried symbol are validated by a Hough-like voting scheme. In addition, a performance evaluation framework for symbol spotting in graphical documents is proposed. The presented methodology has been evaluated with a benchmarking set of architectural documents achieving good performance results. |
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Elsevier |
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DAG @ dag @ RBL2010 |
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1177 |
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Author |
Oriol Ramos Terrades; Ernest Valveny |
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Title |
A new use of the ridgelets transform for describing linear singularities in images |
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Journal Article |
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2006 |
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Pattern Recognition Letters |
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PRL |
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27 |
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6 |
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587–596 |
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DAG @ dag @ RaV2006a |
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635 |
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Author |
Oriol Ramos Terrades; Ernest Valveny |
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Title |
Local Norm Features based on ridgelets Transform |
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Miscellaneous |
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2005 |
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8th International Conference on Document Analysis and Recognition (ICDAR´05), 700–704 |
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DAG @ dag @ RaV2005d |
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642 |
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Author |
Oriol Ramos Terrades; Ernest Valveny |
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Title |
Radon Transform for Lineal Symbol Representation |
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Miscellaneous |
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2003 |
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Proceedings of the Seventh International Conference on Document Analysis and Recognition (ICDAR´03), 195–199 |
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DAG @ dag @ RaV2003d |
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406 |
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Oriol Ramos Terrades; Ernest Valveny |
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Title |
Indexing Technical Symbols Using Ridgelets Transform |
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Miscellaneous |
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2003 |
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Proceedings of the Fifth International Workshop on Graphics Recognition (GREC´03), 202–211 |
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DAG @ dag @ RaV2003c |
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405 |
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Oriol Ramos Terrades; Ernest Valveny |
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Line Detection Using Ridgelets Transform for Graphic Symbol Representation |
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2003 |
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In Pattern Recognition and Image Analysis, Lecture Notes in Computer Science 2652:829–837 |
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Springer-Verlag |
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