CODER/DECODER, CODING/DECODING PROCESSES AND PROGRAMMES FOR BOTH Russian patent published in 2014 - IPC H04N19/503 

FIELD: physics, computation hardware.

SUBSTANCE: invention relates to picture data coder/decoder operating on switched video coding principle (SVC). Decoder comprises first decoding unit to decode picture data composed by interlaced picture data for generation of the first decoded data and data of forecast picture of lower level. First high-frequency sampling processing unit allows sampling at higher frequency of forecast picture data of lower level. Said data is generated by decoding unit for generation of forecast picture data sampled at higher frequency. Second high-frequency sampling processing unit allows sampling at higher frequency of forecast picture data of lower level. Said data is generated by decoding unit for generation of second forecast picture data sampled at higher frequency. It incorporates the selection unit to select the forecast picture first data sampled at higher frequency or second forecast data sampled at higher frequency as forecast picture data for forecast of second decoded data. Second decoding unit allows decoding of picture data that forms the data of consecutive pictures with application of forecast picture data selected by aforesaid selection unit.

EFFECT: decoding the data of pictures coded at upper level and data of interlaced pictures coded at lower level.

7 cl, 2 tbl, 22 dwg