Correlation and subpixel resolution: fast 2-D subpixel displacement estimation

Min Wan; John J. Healy; John T. Sheridan

doi:10.1117/12.2595318

28 June 2021 Correlation and subpixel resolution: fast 2-D subpixel displacement estimation

Min Wan, John J. Healy, John T. Sheridan

Proceedings Volume 11786, Optical Methods for Inspection, Characterization, and Imaging of Biomaterials V; 1178619 (2021) https://doi.org/10.1117/12.2595318
Event: SPIE Optical Metrology, 2021, Online Only

Abstract

Recently, we proposed a simple, fast subtraction method to determine 1-D image displacement with subpixel accuracy. In this paper, we provide a theoretical basis for our method and simulate 2-D motion estimation. Results are also analysed using the correlation technique. The results show that for any general motion in 2-D, involving any combination of motion Δx, and Δy, the Subtraction Method can be used to determine the values of Δx, and Δy using 1-D calibration.

Conference Presentation

Citation Download Citation

Min Wan, John J. Healy, and John T. Sheridan "Correlation and subpixel resolution: fast 2-D subpixel displacement estimation", Proc. SPIE 11786, Optical Methods for Inspection, Characterization, and Imaging of Biomaterials V, 1178619 (28 June 2021); https://doi.org/10.1117/12.2595318

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