@article {,
	title = {Using the Standard Deviation of a Region of Interest in an Image to Estimate Camera to Emitter Distance},
	journal = {Sensors},
	volume = {12},
	year = {2012},
	month = {04/2012},
	pages = {5687-5704   },
	publisher = {MDPI},
	address = {Suiza},
	issn = {1424-8220},
	doi = {10.3390/s120505687},
	author = {Angel Cano and Jose L. Lazaro and A. Infante and Felipe Espinosa and Y. Pompa and P. Fern{\'a}ndez}
}
