| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To determine a prediction mode while taking into account local coding distortion in in-frame prediction coding. <P>SOLUTION: Each of prediction sections 101 to 104 calculates a code length of a prediction target image with respect to each of a plurality of prediction modes, a coding distortion amount and a boundary distortion amount of coding distortion generated in a boundary of prediction units while referring to an image of the prediction unit, stored in a frame buffer 10, adjacent to the prediction target image of a prediction unit. Based on the code length, the coding distortion amount and the boundary distortion amount, an evaluation value calculating section 105 calculates an evaluation value for each prediction mode. Based on the evaluation value for each prediction mode, a prediction mode selecting section 106 selects a prediction mode for the prediction target image. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
