@article {yu2011unsupervised,
	title = {Unsupervised polarimetric SAR image segmentation and classification using region growing with edge penalty},
	journal = {IEEE Transactions on Geoscience and Remote Sensing},
	volume = {50},
	number = {4},
	year = {2011},
	pages = {1302{\textendash}1317},
	publisher = {IEEE},
	author = {Yu, Peter and Qin, A Kai and Clausi, David A}
}
