PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • A graph can represent this change in reproduced contrast vs. frequency with spatial frequency on the horizontal axis and contrast on the vertical axis. (When expressing spatial frequency, video engineers prefer TVL/ph; optical engineers prefer line-pairs per millimeter.) Such a graph represents a form of transfer function for the contrast modulation, and is, therefore, called the modulation transf
http://www.w3.org/ns/prov#wasQuotedFrom
  • tvtechnology.com