IMAGE ENCODING METHOD, IMAGE DECODING METHOD, IMAGE ENCODING DEVICE, AND IMAGE DECODING DEVICE

摘要

An image coding method includes: deriving a candidate for a motion vector predictor from a co-located motion vector (S1301); adding the candidate to a list (S1302); selecting the motion vector predictor from the list (S1303); and coding a current block and coding a current motion vector (S1304), wherein the deriving (S1301) includes: deriving the candidate by a first derivation scheme in the case of determining that each of a current reference picture and a co-located reference picture is a long-term reference picture; and deriving the candidate by a second derivation scheme in the case of determining that each of the current reference picture and the co-located reference picture is a short-term reference picture.