<p>A pixel block (300) is compressed by determining a reference set of multiple reference property values (10-14). A value index associated with a reference property value of the reference set is assigned to each pixel (310-316) in the pixel block (300) based on the original property value of the pixel (310-316). A prediction of the value index is provided based on the value index assigned to at least one neighboring pixel (314, 316) in the pixel block (300). A prediction error is calculated based on the value index assigned to a pixel (316) and its value index prediction. The compressed pixel block (400) comprises encoded representations (424) of the prediction errors and an encoded representation (410) of the reference set.</p>
申请公布号
WO2009150004(A1)
申请公布日期
2009.12.17
申请号
WO2009EP55758
申请日期
2009.05.13
申请人
TELEFONAKTIEBOLAGET L M ERICSSON (PUBL);RASMUSSON, JIM;AKENINE-MOELLER, TOMAS