About: http://webisa.webdatacommons.org/97509315

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	Edge detection is determined by using methods such as a Hough transform, least squares interpolation, Kalman filtering, and determining polynomial bounds.
http://www.w3.org/ns/prov#wasQuotedFrom	dot.gov