Symbol Recognition Combining Vectorial and Pixel-Level Features for Line Drawings

—In this paper, we present an approach for symbol representation and recognition in line drawings, integrating both the vector-based structural description and pixel-level statistical features of the symbol. For the former, a vectorial template is defined on the basis of the vectorization model and exploited in segmenting symbols from the line network. For the latter, a Radon-transform-based signature is employed to characterize shapes on the symbol and the components level. Experimental results on real technical drawings are presented to show the promising aspect of our approach. Keywords-symbol recognition; line drawing; Radon transform; vectorial template

• Type: Conference
• Year: 2010
• Where: ICPR
• Authors: Feng Su, Tong Lu
• Keywords: Computer Vision, ICPR 2010, Line Drawing, Vector-based Structural Description, Vectorial Template