Accurate measurement of translational shifts by adaptively masking phase correlation

L. Pap, J. J. Zou, B. Uy

    Research output: Contribution to journalArticlepeer-review

    5 Citations (Scopus)

    Abstract

    The measurement of translational shifts has an impact on applications in medical imaging, remote sensing and structural health monitoring. Phase correlation (PC) is a well-known method to measure displacement. However, the PC matrix is often degraded by phase noise and aliasing. Presented is a robust PC method based on adaptive masking and essentially non-oscillatory smoothing to reduce phase noise and aliasing. With this approach, translational shifts can be measured with an accuracy of 1/300 of a pixel as shown in the experimental results.
    Original languageEnglish
    Pages (from-to)20-21
    Number of pages2
    JournalElectronics Letters
    Volume48
    Issue number1
    DOIs
    Publication statusPublished - 2012

    Keywords

    • diagnostic imaging
    • displacement measurement
    • image processing
    • phase correlation
    • phase noise
    • remote sensing
    • structural health monitoring
    • translational shifts

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