About: http://webisa.webdatacommons.org/34635816

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Then a laser or other light may be projected back toward the object, steered by the centroid measured on the tracker.
http://www.w3.org/ns/prov#wasQuotedFrom	opticsinfobase.org