@inproceedings {mohebi2009hierarchical,
	title = {Hierarchical sampling with constraints},
	booktitle = {International Conference Image Analysis and Recognition},
	year = {2009},
	pages = {23{\textendash}32},
	publisher = {Springer, Berlin, Heidelberg},
	organization = {Springer, Berlin, Heidelberg},
	author = {Mohebi, Azadeh and Liu, Ying and Fieguth, Paul}
}
