| 摘要 |
A moving picture coding apparatus, for optimizing a handling of a reference picture with the view to reducing the data amount of the reference picture to be stored for use in motion prediction coding, which is configured of: a local decoding unit which obtains a reference picture by decoding a first code representing a first input picture; a reference picture reduction unit which obtains a reduced reference picture by reducing the size of the reference picture; a reference picture storage unit which stores the reduced reference picture; an inter-frame coding unit which generates a difference picture between a second input picture and a reconstructed reference picture obtained by expanding the size of the reduced reference picture obtained from the reference picture storage unit; and an intra-frame coding unit which codes the difference picture.
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