Hierarchical Superpixel Segmentation for PolSAR Images Based on the Boruvka Algorithm
Hierarchical Superpixel Segmentation for PolSAR Images Based on the Boruvka Algorithm
复制标题
基于Boruvka算法的PolSAR图像分层超像素分割
DOI:
10.3390/rs14194721
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发表时间:
2022-09
期刊:
影响因子:
5
通讯作者:
Jun Zhang
中科院分区:
文献类型:
--
作者:
Jie Deng;Wei Wang;Sinong Quan;Ronghui Zhan;Jun Zhang
Superpixel segmentation for polarimetric synthetic aperture radar (PolSAR) images plays a key role in remote-sensing tasks, such as ship detection and land-cover classification. However, the existing methods cannot directly generate multi-scale superpixels in a hierarchical style and they will take a long time when multi-scale segmentation is executed separately. In this article, we propose an effective and accurate hierarchical superpixel segmentation method, by introducing a minimum spanning tree (MST) algorithm called the Boruvka algorithm. To accurately measure the difference between neighboring pixels, we obtain the scattering mechanism information derived from the model-based refined 5-component decomposition (RFCD) and construct a comprehensive dissimilarity measure. In addition, the edge strength map and homogeneity measurement are considered to make use of the structural and spatial distribution information in the PolSAR image. On this basis, we can generate superpixels using the distance metric along with the MST framework. The proposed method can maintain good segmentation accuracy at multiple scales, and it generates superpixels in real time. According to the experimental results on the ESAR and AIRSAR datasets, our method is faster than the current state-of-the-art algorithms and preserves somewhat more image details in different segmentation scales.
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DOI:
10.1109/igarss.2018.8517849
发表时间:
2018-07
期刊:
IGARSS 2018 - 2018 IEEE International Geoscience and Remote Sensing Symposium
影响因子:
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作者:
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DOI:
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DOI:
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发表时间:
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影响因子:
23.6
作者:
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DOI:
10.1016/j.ejrs.2022.01.011
发表时间:
2022-02
期刊:
The Egyptian Journal of Remote Sensing and Space Science
影响因子:
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作者:
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通讯作者:
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影响因子:
5
作者:
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