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Herve Locteau, Sebastien Mace, Ernest Valveny and Salvatore Tabbone. 2010. Extraction des pieces de un plan de habitation. Colloque Internacional Francophone de l´Ecrit et le Document.1–12.
Abstract: In this article, a method to extract the rooms of an architectural floor plan image is described. We first present a line detection algorithm to extract long lines in the image. Those lines are analyzed to identify the existing walls. From this point, room extraction can be seen as a classical segmentation task for which each region corresponds to a room. The chosen resolution strategy consists in recursively decomposing the image until getting nearly convex regions. The notion of convexity is difficult to quantify, and the selection of separation lines can also be rough. Thus, we take advantage of knowledge associated to architectural floor plans in order to obtain mainly rectangular rooms. Preliminary tests on a set of real documents show promising results.
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Josep Llados. 2007. Advances in Graphics Recognition. Digital Document Processing, Major Directions and Recent Advances, Advances in Pattern Recognition, B.B. Chaudhuri, ed., 281–304.
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Agnes Borras, Francesc Tous, Josep Llados and Maria Vanrell. 2003. High-Level Clothes Description Based on Color-Texture and Structural Features. Lecture Notes in Computer Science.108–116.
Abstract: This work is a part of a surveillance system where content- based image retrieval is done in terms of people appearance. Given an image of a person, our work provides an automatic description of his clothing according to the colour, texture and structural composition of its garments. We present a two-stage process composed by image segmentation and a region-based interpretation. We segment an image by modelling it due to an attributed graph and applying a hybrid method that follows a split-and-merge strategy. We propose the interpretation of five cloth combinations that are modelled in a graph structure in terms of region features. The interpretation is viewed as a graph matching with an associated cost between the segmentation and the cloth models. Fi- nally, we have tested the process with a ground-truth of one hundred images.
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Oriol Ramos Terrades and Ernest Valveny. 2003. Line Detection Using Ridgelets Transform for Graphic Symbol Representation.
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Gemma Sanchez, Ernest Valveny, Josep Llados, Joan Mas and N. Lozano. 2004. A platform to extract knowledge from graphic documents. Application to an architectural sketch understanding scenario.
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Philippe Dosch and Josep Llados. 2004. Vectorial Signatures for Symbol Discrimination.
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Gemma Sanchez and Josep Llados. 2004. Syntactic models to represent perceptually regular repetitive patterns in graphic documents.
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Ernest Valveny and Philippe Dosch. 2004. Symbol Recognition Contest: A Synthesis.
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Ernest Valveny and Philippe Dosch. 2004. Performance Evaluation of Symbol Recognition. In S. Marinai, A.D.(E.),, ed. Document Analysis Systems.354–365.
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Oriol Ramos Terrades and Ernest Valveny. 2004. Indexing Technical Symbols Using Ridgelets Transform.
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