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Lluis Gomez, Anguelos Nicolaou, Marçal Rusiñol and Dimosthenis Karatzas. 2020. 12 years of ICDAR Robust Reading Competitions: The evolution of reading systems for unconstrained text understanding. In K. Alahari and C.V. Jawahar, eds. Visual Text Interpretation – Algorithms and Applications in Scene Understanding and Document Analysis. Springer. (Series on Advances in Computer Vision and Pattern Recognition.)
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Lluis Gomez, Dena Bazazian and Dimosthenis Karatzas. 2020. Historical review of scene text detection research. In K. Alahari and C.V. Jawahar, eds. Visual Text Interpretation – Algorithms and Applications in Scene Understanding and Document Analysis. Springer. (Series on Advances in Computer Vision and Pattern Recognition.)
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Jon Almazan, Lluis Gomez, Suman Ghosh, Ernest Valveny and Dimosthenis Karatzas. 2020. WATTS: A common representation of word images and strings using embedded attributes for text recognition and retrieval. In Analysis”, K.A. and C.V. Jawahar, eds. Visual Text Interpretation – Algorithms and Applications in Scene Understanding and Document Analysis. Springer. (Series on Advances in Computer Vision and Pattern Recognition.)
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Josep Llados and Enric Marti. 1997. Playing with error-tolerant subgraph isomorphism in line drawings. VII National Symposium on Pattern Recognition and image Analysis.
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Ernest Valveny and Enric Marti. 1997. Dimensions analysis in hand-drawn architectural drawings. VII National Simposium of Pattern Recognition and image Analysis, SNRFAI´97. CVC-UAB, 90–91.
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Josep Llados, Horst Bunke and Enric Marti. 1996. Structural Recognition of hand drawn floor plans. VI National Symposium on Pattern Recognition and Image Analysis. Cordoba.
Abstract: A system to recognize hand drawn architectural drawings in a CAD environment has been deve- loped. In this paper we focus on its high level interpretation module. To interpret a floor plan, the system must identify several building elements, whose description is stored in a library of pat- terns, as well as their spatial relationships. We propose a structural approach based on subgraph isomorphism techniques to obtain a high-level interpretation of the document. The vectorized input document and the patterns to be recognized are represented by attributed graphs. Discrete relaxation techniques (AC4 algorithm) have been applied to develop the matching algorithm. The process has been divided in three steps: node labeling, local consistency and global consistency verification. The hand drawn creation causes disturbed line drawings with several accuracy errors, which must be taken into account. Here we have identified them and the AC4 algorithm has been adapted to manage them.
Keywords: Rotational Symmetry; Reflectional Symmetry; String Matching.
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Agata Lapedriza, Jaume Garcia, Ernest Valveny, Robert Benavente, Miquel Ferrer and Gemma Sanchez. 2008. Una experiencia de aprenentatge basada en projectes en el ambit de la informatica.
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Robert Benavente, Ernest Valveny, Jaume Garcia, Agata Lapedriza, Miquel Ferrer and Gemma Sanchez. 2008. Una experiencia de adaptacion al EEES de las asignaturas de programacion en Ingenieria Informatica.
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Josep Llados and Enric Marti. 1995. Interpretacio de dibuixos lineals mitjançant tècniques d isomorfisme entre grafs. Trobada de Joves Investigadors.
Abstract: L’anàlisi de documents té com a objectiu la interpretació automàtica de documents impresos sobre paper, amb la finalitat d’obtenir una descripció simbòlica d’aquests, que permeti el seu emmagatzemament i posterior tractament computacional. Les tècniques basades en grafs relacionals d’atributs permeten representar de manera compacta la informació continguda en dibuixos lineals i mitjançant mecanismes d’isomorfisme entre grafs, reconèixer-hi certes estructures i d’aquesta manera, interpretar el document. En aquest treball es dóna una visió general de les tènciques de grafs aplicades al reconeixement visual d’objectes en problemes d’anàlisi de documents. Aquestes tècniques s’il·lustren amb un exemple de reconeixement de plànols dibuixats a mà alçada. Finalment es proposa la utilització de tècniques de Hough com a mecanisme per accelerar el procés de reconeixement aplicant un cert coneixement sobre el domini en el que es treballa
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Salvatore Tabbone and Josep Llados. 2007. A Propos de la Reconnaissance de Documents Graphiques: Synthese et Perspectives. Traitement et Analyse de l’Information: Methodes et Applications.247–258.
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