Time-of-Flight Range Measurement in Low-sensing Environment: Noise Analysis and Complex-domain Non-local Denoising

    Tutkimustuotos: ArtikkeliScientificvertaisarvioitu

    11 Sitaatiot (Scopus)
    30 Lataukset (Pure)

    Abstrakti

    In this work, we deal with the problem of denoising 3D scene range measurements acquired by Time-of-flight (ToF) range sensors and composed in the form of 2D image-like depth maps. We address the specific case of ToF low-sensing environment (LSE). Such environment is set by low-light sensing conditions, low-power hardware requirements, and low-reflectivity scenes. We demonstrate that data captured by a device in such mode can be effectively post-processed in order to reach the same measurement accuracy as if the device was working in normal operating mode. In order to achieve this, we first present an elaborated analysis of noise properties of ToF data sensed in LSE and verify the derived noise models by empirical measurements. Then, we develop a related novel non-local denoising approach working in complex domain and demonstrate its superiority against the state of the art for data acquired by an off-the-shelf ToF device.

    AlkuperäiskieliEnglanti
    JulkaisuIEEE Transactions on Image Processing
    Vuosikerta27
    Numero6
    Varhainen verkossa julkaisun päivämäärä15 helmik. 2018
    DOI - pysyväislinkit
    TilaJulkaistu - 2018
    OKM-julkaisutyyppiA1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä

    Julkaisufoorumi-taso

    • Jufo-taso 3

    !!ASJC Scopus subject areas

    • Software
    • Computer Graphics and Computer-Aided Design

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