| 摘要 |
<P>PROBLEM TO BE SOLVED: To perform highly efficient encoding of a moving image having a brightness varying with time, e.g., a fade image or a dissolve image. <P>SOLUTION: A variable length decoder 303 decodes encoded data 300 containing: a prediction error signal indicating an error of a prediction image signal for a brightness signal and a moving image signal having two color difference signals, motion vector information 414; and index information 415 indicating a combination of at least one reference image number and prediction parameters prepared previously for each brightness signal and two color difference signals. A frame memory/prediction image generator 308 generates a prediction image signal 412 according to a reference image number and prediction parameters of a combination indicated by decoded index information, and then generates a reproduction moving image signal by using a prediction error signal and a prediction image signal. <P>COPYRIGHT: (C)2009,JPO&INPIT |
