Patent ID: 7912132
Filing Date: 2011-03-22
Classification: H04N

Abstract:
1. A moving image decoding apparatus comprising: a decoder configured to decode stream data in which a plurality of macroblocks are multiplexed and output decoded syntax information; a memory configured to store the decoded syntax information of each macroblock output from the decoder; a detector configured to detect an error mixed in the stream data due to an external factor, for the decoded syntax information of each macroblock output from the decoder; an estimator configured to read out a plurality of pieces of the decoded syntax information of a plurality of macroblocks ahead of a macroblock from which the error is detected, to determine presence/absence of a macroblock that is unlikely to be present in normal stream data, based on the read out decoded syntax information, and to estimate that the macroblock that is unlikely to be present in normal stream data is an initial macroblock in which the error mixed; and a decoding controller configured to discard decoded syntax information that succeeds the initial macroblock in which the error mixed, from the decoded syntax information of each of the macroblocks stored in the memory.