研究目的
To propose a novel superpixel segmentation method based on a new distance function and superpixel seed updating strategy for polarimetric synthetic aperture radar (PolSAR) images.
研究成果
The proposed method is effective and achieves a better tradeoff between boundary adherence and compactness. The main contribution includes a novel distance measure to control the superpixels in boundary adherence, homogeneity and compactness, and a new updating strategy of superpixel seeds based on Wishart distribution.
研究不足
The method may have high computational complexity and the generated superpixels may be irregular.
1:Experimental Design and Method Selection:
The proposed superpixel segmentation method is an adaption of k-means for superpixel generation, with a new distance measure and a new strategy to update the positions and intensities of superpixel seeds.
2:Sample Selection and Data Sources:
C-band RADARSAT-2 polarimetric SLC SAR images acquired over Fuzhou, China are used.
3:List of Experimental Equipment and Materials:
RADARSAT-2 data.
4:Experimental Procedures and Operational Workflow:
Initialize superpixel seeds with an expected number of superpixels, iteratively cluster the pixels based on the distance function, and update the superpixel seeds based on the updating strategy.
5:Data Analysis Methods:
The effectiveness of the proposed method is demonstrated by comparing with the SLIC algorithm and Ncut algorithm.
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