@inproceedings {li2016hierarchical,
	title = {Hierarchical grouping approach for fast approximate rgb-d scene flow},
	booktitle = {2016 13th Conference on Computer and Robot Vision (CRV)},
	year = {2016},
	pages = {140{\textendash}147},
	publisher = {IEEE},
	organization = {IEEE},
	author = {Li, Francis and Wong, Alexander and Zelek, John}
}
