FIELD: data processing.
SUBSTANCE: invention relates to motion image decoding. Disclosed is a method of decoding a moving image for decoding a decoding unit consisting of at least one prediction block, comprising steps of: decoding a candidate determination index from a bit stream, wherein an index for determining a candidate with movement information used in a prediction unit which is a decoding object is encoded as a candidate determination index from the bitstream; extracting candidate with information on movement in time, shared for all prediction units in decoding unit, from prediction block of decoded frame, not identical to frame, having prediction unit, which is decoding object, carried out in case, when information indicating extraction or non-extraction of candidate with information on movement in time, shared for all prediction units in decoding unit, is information indicating retrieval of candidate with information on movement in time, shared for all prediction units in decoding unit; generating a plurality of candidates with traffic information, including a candidate with time movement information; and selecting one candidate with movement information from a plurality of candidates with motion information based on the candidate determination index and using the selected candidate with movement information as motion information of the prediction unit being the decoding object; wherein at said decoding step, information indicating reliability or unreliability of information indicating extraction or non-extraction of a candidate with information on movement in time, shared for all prediction units in the decoding unit from the bit stream is decoded.
EFFECT: technical result is higher efficiency of motion-compensated prediction data parallel processing.
2 cl, 36 dwg
