• Title/Summary/Keyword: Dynamin Time Warping(DTW)

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The Modified DTW Method for on-line Automatic Signature Verification (온라인 서명자동인식을 위한 개선된 DTW)

  • Cho, Dong-Uk;Bae, Young-Lae
    • The KIPS Transactions:PartB
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    • v.10B no.4
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    • pp.451-458
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    • 2003
  • Dynamic Programming Matching (DPM) is a mathematical optimization technique for sequentially structured problems, which has, over the years, played a major role in providing primary algorithms in pattern recognition fields. Most practical applications of this method in signature verification have been based on the practical implementational version proposed by Sakoe and Chiba [9], and is usually applied as a case of slope constraint p = 0. We found, in this case, a modified version of DPM by applying a heuristic (forward seeking) implementation is more efficient, offering significantly reduced processing complexity as well as slightly improved verification performance.