False positive reduction in CT colonography using spectral compression and curvature tensor smoothing of surface geometry

Ju Lynn Ong, Abd Krim Seghouane

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

    5 Citations (Scopus)

    Abstract

    Existing polyp detection methods rely heavily on curvaturebased characteristics to differentiate between lesions. However, as curvature is a local feature and a second order differential quantity, noise caused by small bumpy structures and incoherent curvature fields of a discretized volume or surface can greatly increase the number of false positives (FPs) detected. This paper investigates a spectral compression and curvature tensor smoothing algorithm with the aim to reduce the number of FPs detected while preserving true positives. Simulation results give 96% sensitivity for polyps >10mm while reducing FPs by 92%.

    Original languageEnglish
    Title of host publicationProceedings - 2009 IEEE International Symposium on Biomedical Imaging
    Subtitle of host publicationFrom Nano to Macro, ISBI 2009
    Pages89-92
    Number of pages4
    DOIs
    Publication statusPublished - 2009
    Event2009 IEEE International Symposium on Biomedical Imaging: From Nano to Macro, ISBI 2009 - Boston, MA, United States
    Duration: 28 Jun 20091 Jul 2009

    Publication series

    NameProceedings - 2009 IEEE International Symposium on Biomedical Imaging: From Nano to Macro, ISBI 2009

    Conference

    Conference2009 IEEE International Symposium on Biomedical Imaging: From Nano to Macro, ISBI 2009
    Country/TerritoryUnited States
    CityBoston, MA
    Period28/06/091/07/09

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