Video summary generation by visual shielding compressed sensing coding and double-layer affinity propagation

Liu, Jixin; Yu, Dan; Tang, Zheng

doi:10.1016/j.jvcir.2021.103321

Cited by 4 publications

(1 citation statement)

References 21 publications

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“…Compared with classical centroid-based clustering, AP is insensitive to the initial centers and outliers. Therefore, it is widely used in face recognition [32], HSI classification [33], fault detection [34], and many other fields [35][36][37]. At the same time, many scholars have carried out in-depth studies of AP and put forward improved versions.…”

Section: Introductionmentioning

confidence: 99%

Affinity Propagation Based on Structural Similarity Index and Local Outlier Factor for Hyperspectral Image Clustering

Wang

Pan

et al. 2022

Remote Sensing

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In hyperspectral remote sensing, the clustering technique is an important issue of concern. Affinity propagation is a widely used clustering algorithm. However, the complex structure of the hyperspectral image (HSI) dataset presents challenge for the application of affinity propagation. In this paper, an improved version of affinity propagation based on complex wavelet structural similarity index and local outlier factor is proposed specifically for the HSI dataset. In the proposed algorithm, the complex wavelet structural similarity index is used to calculate the spatial similarity of HSI pixels. Meanwhile, the calculation strategy of the spatial similarity is simplified to reduce the computational complexity. The spatial similarity and the traditional spectral similarity of the HSI pixels jointly constitute the similarity matrix of affinity propagation. Furthermore, the local outlier factors are applied as weights to revise the original exemplar preferences of the affinity propagation. Finally, the modified similarity matrix and exemplar preferences are applied, and the clustering index is obtained by the traditional affinity propagation. Extensive experiments were conducted on three HSI datasets, and the results demonstrate that the proposed method can improve the performance of the traditional affinity propagation and provide competitive clustering results among the competitors.

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