Expectation maximisation algorithms for terahertz transmission tomography

B. Recur*, H. Balacey, P. Mounaix

*Corresponding author for this work

    Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

    4 Citations (Scopus)

    Abstract

    Terahertz (THz) tomography is a recently developed imaging technique allowing 3D inspection of opaque objects. In this paper, we develop an ordered subsets convex algorithm for THz transmission tomography (THz-OSC). Since the reconstruction quality is highly depending on the THz beam energy, we investigate afterwards a multi-energy version of the algorithm in order to provide a more accurate reconstruction of the acquired sample. This multi-energy approach is validated by reconstructing data from tomographic acquisitions measured with a 84/287 GHz transmission scanner. Then we discuss how this dual-energy approach could be able to extract physical properties of acquired samples in addition to improving 3D reconstruction.

    Original languageEnglish
    Title of host publicationTerahertz Emitters, Receivers, and Applications V
    EditorsAlexei N. Baranov, John M. Zavada, Dimitris Pavlidis, Manijeh Razeghi
    PublisherSPIE
    ISBN (Electronic)9781628412260
    DOIs
    Publication statusPublished - 2014
    EventTerahertz Emitters, Receivers, and Applications V - San Diego, United States
    Duration: 17 Aug 201418 Aug 2014

    Publication series

    NameProceedings of SPIE - The International Society for Optical Engineering
    Volume9199
    ISSN (Print)0277-786X
    ISSN (Electronic)1996-756X

    Conference

    ConferenceTerahertz Emitters, Receivers, and Applications V
    Country/TerritoryUnited States
    CitySan Diego
    Period17/08/1418/08/14

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