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    Calculating depth maps from digital holograms using stereo disparity


    Pitkäaho, Tomi and Naughton, Thomas J. (2011) Calculating depth maps from digital holograms using stereo disparity. Optics Letters, 36 (11). pp. 2035-2037. ISSN 0146-9592

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    Abstract

    Depth extraction is an important aspect of three-dimensional (3D) image processing with digital holograms and an essential step in extended focus imaging and metrology. All available depth extraction techniques with macroscopic objects are based on variance; however, the effectiveness of this is object dependent. We propose to use disparity between corresponding points in intensity reconstructions to determine depth. Our method requires a single hologram of a scene, from which we reconstruct two different perspectives. In the reconstruction the phase information is not needed, which makes this method useful for in-line digital holography. To our knowledge disparity based 3D image processing has never been proposed before for digital holography.

    Item Type: Article
    Keywords: Holography; Digital holography; Three-dimensional image processing; Image processing; Digital image processing;
    Academic Unit: Faculty of Science and Engineering > Computer Science
    Faculty of Science and Engineering > Research Institutes > Hamilton Institute
    Item ID: 12381
    Identification Number: https://doi.org/10.1364/OL.36.002035
    Depositing User: Thomas Naughton
    Date Deposited: 07 Feb 2020 16:03
    Journal or Publication Title: Optics Letters
    Publisher: Optical Society of America
    Refereed: Yes
    URI:

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