| 摘要 |
<P>PROBLEM TO BE SOLVED: To perform high-efficiency encoding of a moving image having a luminance varying with time, e.g., a fade image or a dissolve image. <P>SOLUTION: A variable length decoder 303 decodes encoded data 300 including: a predictive error signal, indicating an error of a predictive image signal with respect to a moving image signal having a luminance signal and two color difference signals; motion vector information 414; and index information 415, indicating a combination of at least one reference image number and predictive parameters, prepared beforehand, for each luminance signal and two color difference signals. A frame memory/predictive image generator 308 generates a predictive image signal 412, in accordance with a reference image number and predictive parameters of a combination indicated by decoded index information, and then generates a reproduced moving image signal, by using the predictive error signal and the predictive image signal. <P>COPYRIGHT: (C)2010,JPO&INPIT |
