Fast 2D Subpixel Displacement Estimation

Min Wan, John J. Healy (Corresponding author), John T. Sheridan

Research output: Contribution to journalArticleAcademicpeer-review

2 Citations (Scopus)
12 Downloads (Pure)

Abstract

Fast and simple methods for motion estimation with subpixel accuracy are of interest in a variety of applications. In this paper, we extend a recently proposed method for quantifying 1D displacements with subpixel accuracy, referred to as the subtraction method (SM) to 2D motion. Simulation and experimental results are presented. The results indicate that any general motion in 2D involving combinations of in-plane motions in x and y can be determined using SM after a 1D calibration. The errors between the actual motion and estimated are examined.

Original languageEnglish
Article number625
Number of pages19
JournalPhotonics
Volume11
Issue number7
DOIs
Publication statusPublished - Jul 2024

Bibliographical note

Publisher Copyright:
© 2024 by the authors.

Keywords

  • correlation
  • displacement measurement
  • motion estimation
  • subtraction method

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