A novel online boosting algorithm for automatic anatomy detection

Nima Tajbakhsh, Hong Wu, Wenzhe Xue, Michael B. Gotway, Jianming Liang

    Research output: Contribution to journalArticle

    2 Citations (Scopus)

    Abstract

    This paper presents a novel online learning method for automatically detecting anatomic structures in medical images. Conventional off-line learning methods require collecting a complete set of representative samples prior to training a detector. Once the detector is trained, its performance is fixed. To improve the performance, the detector must be completely retrained, demanding the maintenance of historical training samples. Our proposed online approach eliminates the need for storing historical training samples and is capable of continually improving performance with new samples. We evaluate our approach with three distinct thoracic structures, demonstrating that our approach yields performance competitive with the off-line approach. Furthermore, we investigate the properties of our proposed method in comparison with an online learning method suggested by Grabner and Bischof (IEEE Computer Society Conference on Computer Vision and Pattern Recognition 2006, vol. 1, pp. 260-267, 2006), which is the state of the art, indicating that our proposed method runs faster, offers more stability, improves handling of "catastrophic forgetting", and simultaneously achieves a satisfactory level of adaptability. The enhanced performance is attributed to our novel online learning structure coupled with more accurate weaker learners based on histograms.

    Original languageEnglish (US)
    Pages (from-to)1359-1370
    Number of pages12
    JournalMachine Vision and Applications
    Volume24
    Issue number7
    DOIs
    StatePublished - 2013

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    Detectors
    Computer vision
    Pattern recognition

    Keywords

    • Anatomy detection
    • Histogram
    • Kalman filter
    • Online boosting

    ASJC Scopus subject areas

    • Hardware and Architecture
    • Computer Vision and Pattern Recognition
    • Software
    • Computer Science Applications

    Cite this

    A novel online boosting algorithm for automatic anatomy detection. / Tajbakhsh, Nima; Wu, Hong; Xue, Wenzhe; Gotway, Michael B.; Liang, Jianming.

    In: Machine Vision and Applications, Vol. 24, No. 7, 2013, p. 1359-1370.

    Research output: Contribution to journalArticle

    Tajbakhsh, Nima ; Wu, Hong ; Xue, Wenzhe ; Gotway, Michael B. ; Liang, Jianming. / A novel online boosting algorithm for automatic anatomy detection. In: Machine Vision and Applications. 2013 ; Vol. 24, No. 7. pp. 1359-1370.
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