In order to solve the problem that the traditional fuzzy C-means(FCM)segment algorithm is time consuming
a fast FCM algorithm based on histogram deviation constraints is proposed
in which the initial image is re-sampled to reduce the quantity of data processing
the distance deviation of normalized histogram after smoothing is utilized as a constraint condition to calculate proper sample rate so as to control the image distortion due to resample
and the required threshold satisfying the correct segmentation is obtained. The golden section searching algorithm is used to search the sample rate meeting the constraint condition. Experimental results show that the segment time of the proposed algorithm is only 3.0%-11.2%
9.2%-30.2% and 15.0%-52.0% of the traditional FCM
2D entropy and Otsu algorithm respectively while keeping the same segment effect as that the traditional FCM has.
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references
Bezdek J C. Pattern recognition with fuzzy objective function algorithms [M]. New York: Plenum, 1981.
Yamany S M, Farag A A, Hsu S. A fuzzy hyperspectral classifier for automatic target recognition(ATR)systems [J]. Pattern Recognition Letters, 1999, 20(11/13):1431-1438.
He Renjie, Datta S, Sajja B R, et al. Adaptive FCM with contextual constrains for segmentation of multi-spectral MRI [C]∥Proceedings of the 26th Annual International Conference of the IEEE Engineering in Medicine and Biology Society. Piscataway, USA: IEEE, 2004:1660-1663.
Hathaway R J, Bezdek J C. Generalized fuzzy C-means clustering strategies using L norm distance [J]. IEEE Trans Fuzzy Syst, 2000, 8(5):576-572.
Liew A W C, Leung S H, Lau W H. Fuzzy image clustering incorporating spatial continuity [J] Inst Elec Eng Vis Image Signal Process, 2000,147(2):185-192.
Liew A W C, Yan H. An adaptive spatial fuzzy clustering algorithm for 3-D MR image segmentation [J]. IEEE Trans Med Imag, 2003,22:1063-1075.
Ahmed M N, Yamany S M, Mohamed N, et al. A modified fuzzy C-means algorithm for bias field estimation and segmentation of MRI data [J]. IEEE Trans Med Imag, 2002, 21:193-199.
Li Xiang, Li Lihong, Lu Hongbing, et al. Inhomogeneity correction for magnetic resonance images with fuzzy C-means algorithm [C]∥Proceeding of SPIE, Medical Imaging 2003: Image Processing. San Diego, USA: The International Society for Optical Engineering, 2003:995-1005.
Chen S C, Zhang D Q. Robust image segmentation using FCM with spatial constraints based on new kernel-induced distance measure [J]. IEEE Transactions on Systems, Man, and Cybernetics, Part B: Cybernetics, 2004, 34(4):1907-1916.
Otsu A N. A threshold selection method from gray-level histogram [J]. IEEE Trans on Systems,Man,and Cybernetics,1979, 9(1):62-66.
de Albuquerque M P, Esquet I A, Mello A R Q. Image thresholding using Tsallis entropy [J]. Pattern Recognition Letters, 2004, 25:1059-1065.
Zhou Ming, Zhou Hui. An adaptive method of clustering image threshold segmentation based on genetic algorithms [J]. Computer Engineering and Applications, 2005,(18):79-82.