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Author Enric Marti; Jordi Regincos; Juan Jose Villanueva; Jaime Lopez-Krahe edit   pdf
isbn  openurl
  Title Line drawing interpretation as polyhedral objects to man-machine interaction in CAD systems Type Book Chapter
  Year (down) 1994 Publication Advances in Pattern Recognition and Image Analysis, Abbreviated Journal  
  Volume Issue Pages 158-169  
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  Publisher World Scientific Pub. Place of Publication Editor  
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  ISSN ISBN 981-02-1872-9 Medium  
  Area Expedition Conference  
  Notes IAM;ISE Approved no  
  Call Number IAM @ iam @ MRL1994 Serial 1609  
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Author Ole Larsen; Petia Radeva; Enric Marti edit  openurl
  Title Calculating the Bounds on the Optimal Parameters of Elasticity for a Snake Type Report
  Year (down) 1994 Publication Technical Report Abbreviated Journal  
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  Address Aalborg University  
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  Publisher Aalborg University, Laboratory of image Analysis. Place of Publication Denmark Editor  
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  Area Aalborg University, Laboratory of image Analysis. Expedition Conference  
  Notes MILAB;IAM Approved no  
  Call Number IAM @ iam @ LRM1994 Serial 1560  
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Author Enric Marti; Jordi Regincos;Jaime Lopez-Krahe; Juan J.Villanueva edit  url
doi  openurl
  Title Hand line drawing interpretation as three-dimensional objects Type Journal Article
  Year (down) 1993 Publication Signal Processing – Intelligent systems for signal and image understanding Abbreviated Journal  
  Volume 32 Issue 1-2 Pages 91-110  
  Keywords Line drawing interpretation; line labelling; scene analysis; man-machine interaction; CAD input; line extraction  
  Abstract In this paper we present a technique to interpret hand line drawings as objects in a three-dimensional space. The object domain considered is based on planar surfaces with straight edges, concretely, on ansextension of Origami world to hidden lines. The line drawing represents the object under orthographic projection and it is sensed using a scanner. Our method is structured in two modules: feature extraction and feature interpretation. In the first one, image processing techniques are applied under certain tolerance margins to detect lines and junctions on the hand line drawing. Feature interpretation module is founded on line labelling techniques using a labelled junction dictionary. A labelling algorithm is here proposed. It uses relaxation techniques to reduce the number of incompatible labels with the junction dictionary so that the convergence of solutions can be accelerated. We formulate some labelling hypotheses tending to eliminate elements in two sets of labelled interpretations. That is, those which are compatible with the dictionary but do not correspond to three-dimensional objects and those which represent objects not very probable to be specified by means of a line drawing. New entities arise on the line drawing as a result of the extension of Origami world. These are defined to enunciate the assumptions of our method as well as to clarify the algorithms proposed. This technique is framed in a project aimed to implement a system to create 3D objects to improve man-machine interaction in CAD systems.  
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  Publisher Elsevier North-Holland, Inc. Place of Publication Amsterdam, The Netherlands, The Netherlands Editor  
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  Series Volume Series Issue Edition  
  ISSN 0165-1684 ISBN Medium  
  Area Expedition Conference  
  Notes IAM;ISE; Approved no  
  Call Number IAM @ iam @ MRL1993 Serial 1611  
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Author Josep Llados; Enric Marti; Jordi Regincos edit  openurl
  Title Interpretación de diseños a mano alzada como técnica de entrada a un sistema CAD en un ámbito de arquitectura Type Conference Article
  Year (down) 1993 Publication III National Conference on Computer Graphics Abbreviated Journal  
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  Abstract En los últimos años, se ha introducido ámpliamente el uso de los sistemas CAD en dominios relacionados con la arquitectura. Dichos sistemas CAD son muy útiles para el arquitecto en el diseño de planos de plantas de edificios. Sin embargo, la utilización eficiente de un CAD requiere un tiempo de aprendizaje, en especial, en la etapa de creación y edición del diseño. Además, una vez familiarizado con un CAD, el arquitecto debe adaptarse a la simbología que éste le permite que, en algunos casos puede ser poco flexible.Con esta motivación, se propone una técnica alternativa de entrada de documentos en sistemas CAD. Dicha técnica se basa en el diseño del plano sobre papel mediante un dibujo lineal hecho a mano alzada a modo de boceto e introducido mediante scanner. Una vez interpretado este dibujo inicial e introducido en el CAD, el arquitecto sólo deber hacer sobre éste los retoques finales del documento.El sistema de entrada propuesto se compone de dos módulos principales: En primer lugar, la extracción de características (puntos característicos, rectas y arcos) de la imagen obtenida mediante scanner. En dicho módulo se aplican principalmente técnicas de procesamiento de imágenes obteniendo como resultado una representaci¢n del dibujo de entrada basada en grafos de atributos. El objetivo del segundo módulo es el de encontrar y reconocer las entidades integrantes del documento (puertas, mesas, etc.) en base a una biblioteca de símbolos definida en el sistema CAD. La implementación de dicho módulo se basa en técnicas de isomorfismo de grafos.El sistema propone una alternativa que permita, mediante el diseño a mano alzada, la introducción de la informaci¢n m s significativa del plano de forma rápida, sencilla y estandarizada por parte del usuario.  
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  Publisher Place of Publication Granada Editor  
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  Notes DAG;IAM; Approved no  
  Call Number IAM @ iam @ LMR1993 Serial 1571  
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Author Enric Marti; Jordi Regincos;Jaime Lopez-Krahe; Juan J.Villanueva edit  openurl
  Title Interpretación de dibujos lineales a mano alzada como objetos 3D Type Conference Article
  Year (down) 1992 Publication V Simposium Nacional de Reconocimiento de Formas y Análisis de Imágenes Abbreviated Journal  
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  Publisher Place of Publication València Editor  
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  Notes IAM;ISE Approved no  
  Call Number IAM @ iam @ MRL1992 Serial 1601  
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Author J.A.Perez; Enric Marti; Juan J.Villanueva edit  openurl
  Title Interfase de Usuario de Entrada de Datos 3D en un CAD de Cartografía Urbana a partir de Pares Estereoscópicos Type Conference Article
  Year (down) 1992 Publication II Congreso Español de Informática Gráfica Abbreviated Journal  
  Volume Issue Pages 47-60  
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  Area Expedition Conference CEIG  
  Notes IAM;ISE Approved no  
  Call Number IAM @ iam @ PVM1992 Serial 1624  
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Author Enric Marti; Jordi Regincos; Jaime Lopez-Krahe edit  openurl
  Title Interpretación de Dibujos Lineales a Mano Alzada Representando Escenas Tridimensionales Type Conference Article
  Year (down) 1991 Publication Primer Congreso Español de Informática. Abbreviated Journal  
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  Notes IAM Approved no  
  Call Number IAM @ iam @ MRL1991 Serial 1610  
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Author Enric Marti; Jordi Regincos; Jaime Lopez-Krahe; Juan J.Villanueva edit  openurl
  Title A system for interpretation of hand line drawings as three-dimensional scene for CAD input Type Conference Article
  Year (down) 1991 Publication Proceedings of the First International Conference on Document Analysis and Recognition Abbreviated Journal  
  Volume Issue Pages 472-480  
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  Notes IAM;ISE Approved no  
  Call Number IAM @ iam @ Mar1991 Serial 1494  
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Author F. Javier Sanchez; Jordi Vitria; Enric Marti edit  openurl
  Title Transformaciones Morfológicas de Polígonos Isotéticos Type Conference Article
  Year (down) 1991 Publication Primer Congreso Español de Informática Gráfica. Abbreviated Journal  
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  Notes OR;IAM;MV Approved no  
  Call Number IAM @ iam @ SVM1991 Serial 1648  
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Author Joan Serrat; Enric Marti edit  openurl
  Title Elastic matching using interpolation splines Type Conference Article
  Year (down) 1991 Publication IV Spanish Symposium of Pattern Recognition and image Analysis Abbreviated Journal  
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  Notes ADAS;IAM; Approved no  
  Call Number IAM @ iam @ SMV1991 Serial 1651  
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