A subpixel image matching technique using phase-only correlation

Sei Nagashima, Takafumi Aoki, Tatsuo Higuchi, Koji Kobayashi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

48 Citations (Scopus)

Abstract

This paper presents a high-accuracy image matching technique using a Phase-Only Correlation (POC) function. The POC-based image matching enables estimation of image displacements with 1/10-1/100-pixel accuracy by a function fitting technique using the closed-form representation of the POC function's peak. This method requires an iterative process for the nonlinear function fitting, resulting in long computation times. In this paper, we propose a Peak Evaluation Formula (PEF) that directly estimates the correlation peak location from actual 2-D data array of the POC function. Experimental evaluation shows that the proposed method reduces computation time without sacrificing image matching accuracy.

Original languageEnglish
Title of host publication2006 International Symposium on Intelligent Signal Processing and Communications, ISPACS'06
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages701-704
Number of pages4
ISBN (Print)0780397339, 9780780397330
DOIs
Publication statusPublished - 2006 Jan 1
Event2006 International Symposium on Intelligent Signal Processing and Communications, ISPACS'06 - Yonago, Japan
Duration: 2006 Dec 122006 Dec 15

Publication series

Name2006 International Symposium on Intelligent Signal Processing and Communications, ISPACS'06

Other

Other2006 International Symposium on Intelligent Signal Processing and Communications, ISPACS'06
CountryJapan
CityYonago
Period06/12/1206/12/15

ASJC Scopus subject areas

  • Computer Science Applications
  • Signal Processing
  • Software
  • Electrical and Electronic Engineering
  • Mathematics(all)

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