Neighbor-based FCM clustering for remote sensing image and its parallel implementation

Xuejing Gong; Kangze Yao

doi:10.1117/12.742837

14 November 2007 Neighbor-based FCM clustering for remote sensing image and its parallel implementation

Xuejing Gong, Kangze Yao

Proceedings Volume 6789, MIPPR 2007: Medical Imaging, Parallel Processing of Images, and Optimization Techniques; 67891X (2007) https://doi.org/10.1117/12.742837
Event: International Symposium on Multispectral Image Processing and Pattern Recognition, 2007, Wuhan, China

Abstract

Fuzzy C-Means clustering is one of the most perfective and widely used algorithms based on objective function for unsupervised classification. Considering the spatial relationship of pixels when it is used in remote sensing imagery, Neighbor-based FCM algorithm is put forward with the method of modifying the value of fuzzy membership degrees with the neighbor information during the clustering iterations. We use dominant class, if it can be determined in a fixed neighbor region, or the weighted parameters based on the distance of neighbors to perfect the membership degrees of central pixel. Then parallel implement for the algorithm is also proposed by taking account into the communication complexity and the spatial relationship for image partition. In the end, the experimental data indicate the efficiency of the algorithm in decreasing the amount of clustering iterations and increasing the classified precision; the parallel algorithm also achieves the satisfied linear speedup.

Citation Download Citation

Xuejing Gong and Kangze Yao "Neighbor-based FCM clustering for remote sensing image and its parallel implementation", Proc. SPIE 6789, MIPPR 2007: Medical Imaging, Parallel Processing of Images, and Optimization Techniques, 67891X (14 November 2007); https://doi.org/10.1117/12.742837

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KEYWORDS

Image processing

Fuzzy logic

Remote sensing

Image classification

Data communications

Data processing

Optimization (mathematics)

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