Fast on-line signature recognition based on VQ with time modeling |
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Authors: | Juan Manuel Pascual-Gaspar Carlos Vivaracho |
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Affiliation: | a Valladolid, Spain b Escola Universitària Politècnica de Mataró, Barcelona, Spain c Facultad de informática, Universidad de Valladolid, Spain |
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Abstract: | This paper proposes a multi-section vector quantization approach for on-line signature recognition. We have used the MCYT database, which consists of 330 users and 25 skilled forgeries per person performed by 5 different impostors. This database is larger than those typically used in the literature. Nevertheless, we also provide results from the SVC database.Our proposed system outperforms the winner of SVC with a reduced computational requirement, which is around 47 times lower than DTW. In addition, our system improves the database storage requirements due to vector compression, and is more privacy-friendly as it is not possible to recover the original signature using the codebooks. Experimental results with MCYT provide a 99.76% identification rate and 2.46% EER (skilled forgeries and individual threshold). Experimental results with SVC are 100% of identification rate and 0% (individual threshold) and 0.31% (general threshold) when using a two-section VQ approach. |
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Keywords: | On-line signature recognition Vector quantization DTW Time normalization Reduced computational requirements |
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