| 摘要 |
<P>PROBLEM TO BE SOLVED: To encode a motion image, which changes in luminance with time like a fade image and a dissolving image, with high efficiency. <P>SOLUTION: A variable-length decoder 303 decodes encoded data 300 including a prediction error signal indicating an error of a prediction image signal for a motion image signal having a luminance signal and two color difference signals, motion vector information 414, and index information 415 showing a combination of at least one reference image signal and a prediction parameter prepared for each combination of a luminance signal and two color difference signals, and a frame memory/prediction image generator 308 generates a prediction image signal 412 according to the reference image number and prediction parameter of the combination indicated by the decoded index information, and generates a reproduced motion image signal using the prediction error signal and prediction image signal. <P>COPYRIGHT: (C)2008,JPO&INPIT |
