Forward-looking sonar image registration using polar transform

Jian Zhang, Ferdous Sohel, Hongyu Bian, Mohammed Bennamoun, Senjian An

    Research output: Chapter in Book/Conference paperConference paper

    4 Citations (Scopus)

    Abstract

    This paper presents a novel approach for forward-looking sonar (FLS) image registration. By simplifying the sonar imaging motion model, we show that the transformation between two consecutive and near-consecutive sonar images approximately follows a rigid transformation. Then we propose a polar transform based approach for FLS image registration. We extract Gabor feature points and use them as the centers of the sampling regions for the polar transform. To reduce the influence of oversampling at the fovea, a Weighted Angular Projection Function (WAPF) is used to calculate the distance between two points in two images. This will determine the corresponding point pairs between the reference and target images. Then, the rotation between the two images can be calculated from the translation between the WAPFs of the corresponding point pairs. The translation between the two images is then calculated by using the Cartesian coordinates of the centers. Experimental results show that our proposed approach produced superior results compared with the state-of-the-art.

    Original languageEnglish
    Title of host publicationOCEANS 2016 MTS/IEEE Monterey, OCE 2016
    PublisherIEEE, Institute of Electrical and Electronics Engineers
    ISBN (Electronic)9781509015375
    ISBN (Print)9781509015375
    DOIs
    Publication statusPublished - 28 Nov 2016
    Event2016 OCEANS MTS/IEEE Monterey, OCE 2016 - Monterey, United States
    Duration: 19 Sep 201623 Sep 2016

    Conference

    Conference2016 OCEANS MTS/IEEE Monterey, OCE 2016
    CountryUnited States
    CityMonterey
    Period19/09/1623/09/16

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