Automated segmentation for patella from lateral knee X-ray images

H. C. Chen, C. H. Wu, C. J. Lin, Y. H. Liu, Y. N. Sun

研究成果: Conference contribution

5 引文 斯高帕斯(Scopus)

摘要

X-ray image segmentation is an important issue in medical image analysis. Due to inconsistent X-ray absorption, the intensities are usually unevenly distributed and noisy in the processed organ, thus the object segmentation becomes difficult. In this paper we propose a new segmentation method for patella from the lateral knee X-ray images based on the active shape model (ASM). At first, a patella shape model is constructed by principal component analysis (PCA) of corresponding landmarks obtained from a set of training shape. As the knee X-ray image usually contains many anatomical structures, we design a strategy based on edge tracing to place the initial shape model as close to the patella boundary as possible. Then, the shape model is deformed and fitted to the patella boundary by using a dual-optimization approach that includes a genetic algorithm (GA) to get the global geometric transform and ASM to deform the shape model iteratively. Consequently, the proposed method can cope with different knee X-ray images and can segment the patella in an automatic procedure. In the experiment, 20 images were tested and promising results are obtained by the proposed method. This method is found useful for the clinical evaluation and biomechanical study of knee.

原文English
主出版物標題Proceedings of the 31st Annual International Conference of the IEEE Engineering in Medicine and Biology Society
主出版物子標題Engineering the Future of Biomedicine, EMBC 2009
發行者IEEE Computer Society
頁面3553-3556
頁數4
ISBN(列印)9781424432967
DOIs
出版狀態Published - 2009 一月 1
事件31st Annual International Conference of the IEEE Engineering in Medicine and Biology Society: Engineering the Future of Biomedicine, EMBC 2009 - Minneapolis, MN, United States
持續時間: 2009 九月 22009 九月 6

出版系列

名字Proceedings of the 31st Annual International Conference of the IEEE Engineering in Medicine and Biology Society: Engineering the Future of Biomedicine, EMBC 2009

Other

Other31st Annual International Conference of the IEEE Engineering in Medicine and Biology Society: Engineering the Future of Biomedicine, EMBC 2009
國家United States
城市Minneapolis, MN
期間09-09-0209-09-06

    指紋

All Science Journal Classification (ASJC) codes

  • Cell Biology
  • Developmental Biology
  • Biomedical Engineering
  • Medicine(all)

引用此

Chen, H. C., Wu, C. H., Lin, C. J., Liu, Y. H., & Sun, Y. N. (2009). Automated segmentation for patella from lateral knee X-ray images. 於 Proceedings of the 31st Annual International Conference of the IEEE Engineering in Medicine and Biology Society: Engineering the Future of Biomedicine, EMBC 2009 (頁 3553-3556). [5332588] (Proceedings of the 31st Annual International Conference of the IEEE Engineering in Medicine and Biology Society: Engineering the Future of Biomedicine, EMBC 2009). IEEE Computer Society. https://doi.org/10.1109/IEMBS.2009.5332588