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Quantitative Optical Microscopy: Measurement of Cellular Biophysical Features with a Standard Optical Microscope
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Published on: April 7, 2014

Optical correlation analysis of two-phase micrographs.

F T Yu, R J Bieringer

    Applied Optics
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    PubMed
    Summary
    This summary is machine-generated.

    Coherent optical techniques reveal structural correlations in random micrographs. Statistical autocorrelation analysis quantifies object size and separation from image analysis, aiding quantitative determinations.

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    Area of Science:

    • Optics
    • Image Analysis
    • Materials Science

    Background:

    • Studying correlations in random structures of electron or light micrographs is challenging.
    • Coherent optical techniques offer potential for detailed structural analysis.

    Purpose of the Study:

    • To apply coherent optical techniques for studying correlations in random micrograph structures.
    • To develop a statistical autocorrelation analysis for quantitative structural determination.

    Main Methods:

    • Statistical autocorrelation analysis of random arrays (disks, ellipses).
    • Experimental determination of two-dimensional autocorrelation functions.
    • Relating autocorrelation maxima to object size and mean separation.

    Main Results:

    • Central autocorrelation maximum shape mirrors object shape.
    • First autocorrelation maximum shape depends on centroid distribution.
    • Rectangular first maximum observed for anisotropic centroid separation, indicating separability.

    Conclusions:

    • Coherent optical autocorrelation analysis effectively quantifies parameters of random structures.
    • The method allows for direct, quantitative determination of mean separations in micrographs.
    • Anisotropic distributions yield separable autocorrelation functions.