Distance interior ratio: A new shape signature for 2D shape retrieval

Natsuda Kaothanthong, Jinhee Chun, Takeshi Tokuyama

Research output: Contribution to journalArticlepeer-review

36 Citations (Scopus)


In this work, we propose a shape signature named Distance Interior Ratio (DIR) that utilizes intersection pattern of the distribution of line segments with the shape. To improve the efficiency of the histogram-based shape signature, we present a histogram alignment method for adjusting the interval of the histogram according to the distance distribution. The experimental result shows a 3.25% improvement using the proposed histogram alignment. When compared to other shape signatures, our experimental result gives a 77.69% retrieval rate using MPEG7 Part B dataset [Latecki, et al. (2000)[14]].

Original languageEnglish
Pages (from-to)14-21
Number of pages8
JournalPattern Recognition Letters
Publication statusPublished - 2016 Jul 15


  • Homometric pair
  • Shape retrieval
  • Shape signature


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