Spatial difference shaping to improve range resolution in 3D super resolution range gated imaging

Xinwei Wang*, Yinan Cao, Dezhen Lu, Xiaoquan Liu, Songtao Fan, Yan Zhou, Youfu Li

*Corresponding author for this work

    Research output: Chapters, Conference Papers, Creative and Literary WorksRGC 32 - Refereed conference paper (with host publication)peer-review

    1 Citation (Scopus)

    Abstract

    Three-dimensional super-resolution range-gated imaging has been developed for high-resolution 3D remote sensing with two range-intensity correlation algorithms under specific shapes of range-intensity profiles (RIP). However, pulsed lasers have a minimum pulse width which limits range resolution improvement. Here a spatial difference shaping method is proposed to break the resolution limitation. This method establishes a shaping filter, and the pre-reshaping gate images are reshaped by spatial difference and yield new gate images with the laser pulse width equivalently narrowed as half value which improves the range resolution. Furthermore, the boundary blurring caused by non-rectangular laser pulses are also eliminated.
    Original languageEnglish
    Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
    PublisherSPIE
    Volume9622
    ISBN (Print)9781628418033
    DOIs
    Publication statusPublished - 2015
    Event2015 International Conference on Optical Instruments and Technology: Optoelectronic Imaging and Processing Technology, OIT 2015 - Beijing, China
    Duration: 17 May 201519 May 2015

    Publication series

    Name
    Volume9622
    ISSN (Print)0277-786X
    ISSN (Electronic)1996-756X

    Conference

    Conference2015 International Conference on Optical Instruments and Technology: Optoelectronic Imaging and Processing Technology, OIT 2015
    PlaceChina
    CityBeijing
    Period17/05/1519/05/15

    Research Keywords

    • range-intensity profile
    • shaping filter
    • spatial difference shaping
    • super-resolution
    • three-dimensional range-gated imaging

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