Symbol Spotting in Technical Drawings Using Vectorial Signatures

  • Marçal Rusiñol
  • Josep Lladós
Part of the Lecture Notes in Computer Science book series (LNCS, volume 3926)


In this paper we present a method to determine which symbols are probable to be found in technical drawings using vectorial signatures. These signatures are formulated in terms of geometric and structural constraints between segments, as parallelisms, straight angles, etc. After representing vectorized line drawings with attributed graphs, our approach works with a multi-scale representation of these graphs, retrieving the features that are expressive enough to create the signature. Since the proposed method integrates a distortion model, it can be used either with scanned and then vectorized drawings or with hand-drawn sketches.


Adjacency Matrix Line Drawing Vectorial Representation Vectorial Signature Vote Scheme 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Springer-Verlag Berlin Heidelberg 2006

Authors and Affiliations

  • Marçal Rusiñol
    • 1
  • Josep Lladós
    • 1
  1. 1.Centre de Visió per Computador / Computer Science Department, Edifici OBarcelonaSpain

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