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      Matching Islamic patterns in Kufic images

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      Author
      Arifoglu, D.
      Sahin, E.
      Adiguzel, H.
      Duygulu, P.
      Kalpakli, M.
      Date
      2015
      Source Title
      Pattern Analysis and Applications
      Print ISSN
      1433-7541
      Publisher
      Springer-Verlag London Ltd
      Volume
      18
      Issue
      3
      Pages
      601 - 617
      Language
      English
      Type
      Article
      Item Usage Stats
      117
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      125
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      Abstract
      In this study, we address the problem of matching patterns in Kufic calligraphy images. Being used as a decorative element, Kufic images have been designed in a way that makes it difficult to be read by non-experts. Therefore, available methods for handwriting recognition are not easily applicable to the recognition of Kufic patterns. In this study, we propose two new methods for Kufic pattern matching. The first method approximates the contours of connected components into lines and then utilizes chain code representation. Sequence matching techniques with a penalty for gaps are exploited for handling the variations between different instances of sub-patterns. In the second method, skeletons of connected components are represented as a graph where junction and end points are considered as nodes. Graph isomorphism techniques are then relaxed for partial graph matching. Methods are evaluated over a collection of 270 square Kufic images with 8,941 sub-patterns. Experimental results indicate that, besides retrieval and indexing of known patterns, our method also allows the discovery of new patterns.
      Keywords
      Calligraphy
      Cultural heritage
      Graph matching
      Kufic
      Sequence matching
      Permalink
      http://hdl.handle.net/11693/21214
      Published Version (Please cite this version)
      http://dx.doi.org/10.1007/s10044-014-0437-z
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      • Department of Computer Engineering 1368
      • Department of History 260
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