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| Content Provider | IET Digital Library |
|---|---|
| Author | Chen, Yunjie Li, Jian Zhang, Hui Zheng, Yuhui Jeon, Byeungwoo Wu, Qingming Jonathan |
| Abstract | Owing to the existence of noise and intensity inhomogeneity in brain magnetic resonance (MR) images, the existing segmentation algorithms are hard to find satisfied results. In this study, the authors propose an improved fuzzy C-mean clustering method (FCM) to obtain more accurate results. First, the authors modify the traditional regularisation smoothing term by using the non-local information to reduce the effect of the noise. Second, inspired by the mechanism of the Gaussian mixture model, the distance function of FCM is defined by using the form of certain exponential function consisting of not only the distance but also the covariance and the prior probability to improve the robustness. Meanwhile, the bias field is modelled by using orthogonal basis functions to reduce the effect of intensity inhomogeneity. Finally, they use the hierarchical strategy to construct a more flexibility function, which considers the improved distance function itself as a sub-FCM, to make the method more robust and accurate. Compared with the state-of-the-art methods, experiment results based on synthetic and real MR images demonstrate its accuracy and robustness. |
| Starting Page | 865 |
| Ending Page | 876 |
| Page Count | 12 |
| ISSN | 17519659 |
| Volume Number | 10 |
| e-ISSN | 17519667 |
| Issue Number | Issue 11, Nov (2016) |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/iet-ipr/10/11 |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/iet-ipr.2016.0271 |
| Journal | IET Image Processing |
| Publisher Date | 2016-06-13 |
| Access Restriction | Open |
| Rights Holder | © The Institution of Engineering and Technology |
| Subject Keyword | Algebra Biology And Medical Computing Biomedical Magnetic Resonance Imaging Biomedical MRI Brain Magnetic Resonance Imaging Segmentation Combinatorial Mathematics Computer Vision And Image Processing Technique Exponential Function FCM Flexibility Function Fuzzy Set Theory Gaussian Mixture Model Gaussian Processes Graph Theory Hierarchical Strategy Image Denoising Image Segmentation Improved Distance Function Intensity Inhomogeneity Effect Reduction Medical Image Processing Medical Magnetic Resonance Imaging And Spectroscopy Mixture Model MR Image Noise Effect Reduction Nonlocal-based Spatially Constrained Hierarchical Fuzzy C-means Method Optical, Image And Video Signal Processing Orthogonal Basis Function Patient Diagnostic Method And Instrumentation Pattern Clustering Probability Regularisation Smoothing Term Set Theory Spectroscopy Statistics |
| Content Type | Text |
| Resource Type | Article |
| Subject | Signal Processing Electrical and Electronic Engineering Computer Vision and Pattern Recognition Software |
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