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Marçal Rusiñol and Josep Llados. 2009. A Performance Evaluation Protocol for Symbol Spotting Systems in Terms of Recognition and Location Indices. IJDAR, 12(2), 83–96.
Abstract: Symbol spotting systems are intended to retrieve regions of interest from a document image database where the queried symbol is likely to be found. They shall have the ability to recognize and locate graphical symbols in a single step. In this paper, we present a set of measures to evaluate the performance of a symbol spotting system in terms of recognition abilities, location accuracy and scalability. We show that the proposed measures allow to determine the weaknesses and strengths of different methods. In particular we have tested a symbol spotting method based on a set of four different off-the-shelf shape descriptors.
Keywords: Performance evaluation; Symbol Spotting; Graphics Recognition
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Marçal Rusiñol and Josep Llados. 2008. Word and Symbol Spotting using Spatial Organization of Local Descriptors. Proceedings of the 8th IAPR International Workshop on Document Analysis Systems,.489–496.
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Marçal Rusiñol and Josep Llados. 2008. A Region-Based Hashing Approach for Symbol Spotting in Technical Documents. In W. Lius, J.L., J.M. Ogier, ed. Graphics Recognition: Recent Advances and New Opportunities.104–113. (LNCS.)
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Marçal Rusiñol and Josep Llados. 2007. A Region-Based Hashing Approach for Symbol Spotting in Thechnical Documents. In J. Llados, W.L., J.M. Ogier, ed. Seventh IAPR International Workshop on Graphics Recognition.41–42.
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Marçal Rusiñol and Josep Llados. 2006. Symbol Spotting in Technical Drawings Using Vectorial Signatures. Graphics Recognition: Ten Years Review and Future Perspectives, W. Liu, J. Llados (Eds.), LNCS 3926: 35–46.
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Marçal Rusiñol and Josep Llados. 2005. Symbol Spotting in Technical Drawings Using Vectorial Signatures.
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Oriol Ramos Terrades, Salvatore Tabbone, L. Wendling and Ernest Valveny. 2004. Symbol Recognition based on a Multiresolution Analysis of the Radon Transform.
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Oriol Ramos Terrades, Salvatore Tabbone and Ernest Valveny. 2007. A Review of Shape Descriptors for Document Analysis. 9th International Conference on Document Analysis and Recognition.227–231.
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Oriol Ramos Terrades, Salvatore Tabbone and Ernest Valveny. 2007. Optimal Linear Combination for Two-class Classifiers. Proceedings of the International Conference on Advances in Pattern Recognition.
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Oriol Ramos Terrades, Salvatore Tabbone and Ernest Valveny. 2006. Combination of shape descriptors using an adaptation of boosting.
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