A denial radiograph recognition system using phase-only correlation for human identification

Koichi Ito, Akira Nikaido, Takafumi Aoki, Elko Kosuge, Ryota Kawamata, Isamu Kashima

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)


In mass disasters such us earthquakes, fire disasters, tsunami, and terrorism, dental records have been used for identifying victims due to their processing time and accuracy. The greater the number of victims, the more time the identification tasks require, since a manual comparison between the dental radiograph records is done by forensic experts. Addressing this problem, this paper presents an efficient dental radiograph recognition system using Phase-Only Correlation (POC) for human identification. The use of phase components in 2D (two-dimensional) discrete Fourier transforms of dental radiograph images makes possible to achieve highly robust image registration and recognition. Experimental evaluation using a set of dental radiographs indicates that the proposed system exhibits efficient recognition performance for low-quality images.

Original languageEnglish
Pages (from-to)298-305
Number of pages8
JournalIEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences
Issue number1
Publication statusPublished - 2008


  • Biometries
  • Dental biometrics
  • Dental radiograph
  • Image matching
  • Image registration
  • Phase-only correlation

ASJC Scopus subject areas

  • Signal Processing
  • Computer Graphics and Computer-Aided Design
  • Electrical and Electronic Engineering
  • Applied Mathematics


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