About: http://webisa.webdatacommons.org/165731989

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	IPF is a pre-post filtering system that uses inverse pair 2D filters for high frequency pre-emphasis before encoding and high frequency de-emphasis after decoding.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com