Patent ID: 8755439

Claim:
A moving picture decoding apparatus which predicts and generates motion vector information for a current macroblock to be decoded having no motion vector information, with reference to macroblock information of another macroblock, said moving picture decoding apparatus comprising: a storage unit configured to store the macroblock information of the other macroblock; and a decoding unit configured to change a decoding operation in which the macroblock information of the other macroblock is referred to (i) to a decoding operation in which the macroblock information of the other macroblock is not referred to or (ii) to a decoding operation in which modified macroblock information obtained by modifying the macroblock information of the other macroblock is referred to, when the macroblock information of the other macroblock is associated with information indicating presence of an error, the other macroblock being (i) included in a picture previously decoded and (ii) situated in a position corresponding to a position of the current macroblock to be decoded.