<http://webisa.webdatacommons.org/prov/225890140>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/418148634> .
<http://webisa.webdatacommons.org/prov/444887108>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/418148634> .
<http://webisa.webdatacommons.org/418148634>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/418148634>	<http://www.w3.org/ns/prov#value>	"DTFs of a two-dimensional intensity image are the features, such as ridges and valleys, labeled from the underlying intensity surface in a chosen scanning direction." .
<http://webisa.webdatacommons.org/418148634>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<ieee.org> .