High Accuracy Image Rotation and Scale Estimation Using Radon Transform and Sub-pixel Shift Estimation

Takanori Fujisawa, Masaaki Ikehara

    研究成果: Conference contribution

    抜粋

    Rotation and scale estimation of images are fundamental tasks in image registration. The conventional estimation method uses log-polar transform and 1D shift estimation to estimate rotation and scale regardless of the shift of images. However, this transform requires interpolation of the frequency components, which causes estimation error. We propose a rotation and scale estimation algorithm based on Radon transform and sub-pixel shift estimation. Radon transform can estimate the rotation independent of the shift and can reduce the influence of interpolation error because it is performed on the spatial image rather than the frequency. In addition, sub-pixel shift estimation using linear approximation of the phase component improves the precision of 1D shift estimation and achieves accurate rotation estimation. The proposed method was evaluated on test images, and the results demonstrate that the proposed method accurately estimates rotation compared to log-polar-based and other conventional methods.

    元の言語English
    ホスト出版物のタイトル2019 IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2019 - Proceedings
    出版者Institute of Electrical and Electronics Engineers Inc.
    ページ1687-1691
    ページ数5
    ISBN(電子版)9781479981311
    DOI
    出版物ステータスPublished - 2019 5 1
    イベント44th IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2019 - Brighton, United Kingdom
    継続期間: 2019 5 122019 5 17

    出版物シリーズ

    名前ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
    2019-May
    ISSN(印刷物)1520-6149

    Conference

    Conference44th IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2019
    United Kingdom
    Brighton
    期間19/5/1219/5/17

      フィンガープリント

    ASJC Scopus subject areas

    • Software
    • Signal Processing
    • Electrical and Electronic Engineering

    これを引用

    Fujisawa, T., & Ikehara, M. (2019). High Accuracy Image Rotation and Scale Estimation Using Radon Transform and Sub-pixel Shift Estimation. : 2019 IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2019 - Proceedings (pp. 1687-1691). [8682679] (ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings; 巻数 2019-May). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ICASSP.2019.8682679