Comparison of the different approaches to generate holograms from data acquired with a Kinect sensor

Ji Hoon Kang, Thibault Leportier, Byeong Kwon Ju, Jin Dong Song, Kwang Hoon Lee, Min Chul Park

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    1 Citation (Scopus)

    Abstract

    Data of real scenes acquired in real-Time with a Kinect sensor can be processed with different approaches to generate a hologram. 3D models can be generated from a point cloud or a mesh representation. The advantage of the point cloud approach is that computation process is well established since it involves only diffraction and propagation of point sources between parallel planes. On the other hand, the mesh representation enables to reduce the number of elements necessary to represent the object. Then, even though the computation time for the contribution of a single element increases compared to a simple point, the total computation time can be reduced significantly. However, the algorithm is more complex since propagation of elemental polygons between non-parallel planes should be implemented. Finally, since a depth map of the scene is acquired at the same time than the intensity image, a depth layer approach can also be adopted. This technique is appropriate for a fast computation since propagation of an optical wavefront from one plane to another can be handled efficiently with the fast Fourier transform. Fast computation with depth layer approach is convenient for real time applications, but point cloud method is more appropriate when high resolution is needed. In this study, since Kinect can be used to obtain both point cloud and depth map, we examine the different approaches that can be adopted for hologram computation and compare their performance.

    Original languageEnglish
    Title of host publicationHolography
    Subtitle of host publicationAdvances and Modern Trends V
    EditorsJohn T. Sheridan, Miroslav Hrabovsky, Antonio Fimia
    PublisherSPIE
    ISBN (Electronic)9781510609679
    DOIs
    Publication statusPublished - 2017
    EventHolography: Advances and Modern Trends V 2017 - Prague, Czech Republic
    Duration: 2017 Apr 242017 Apr 27

    Publication series

    NameProceedings of SPIE - The International Society for Optical Engineering
    Volume10233
    ISSN (Print)0277-786X
    ISSN (Electronic)1996-756X

    Other

    OtherHolography: Advances and Modern Trends V 2017
    Country/TerritoryCzech Republic
    CityPrague
    Period17/4/2417/4/27

    Bibliographical note

    Publisher Copyright:
    © 2017 SPIE.

    Keywords

    • Computer generated hologram
    • Depth-layer approach
    • Digital holography
    • Kinect sensor
    • Mesh representation
    • Point cloud

    ASJC Scopus subject areas

    • Electronic, Optical and Magnetic Materials
    • Condensed Matter Physics
    • Computer Science Applications
    • Applied Mathematics
    • Electrical and Electronic Engineering

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