| 摘要 |
<P>PROBLEM TO BE SOLVED: To improve encoding efficiency by using difference values of pixel values. <P>SOLUTION: An image processing apparatus uses motion prediction processing to obtain, at a reference frame, a reference block B associated with a target block A by an inter motion vector MV. Next, the image processing apparatus uses intra prediction to detect, at the target frame, a block A' corresponding to the target block A, and to detect, at the reference frame, a block B' corresponding to the reference block B. The difference between the pixel values of the target block A and the pixel values of the block A', and the difference between the block B' and the pixel values of the reference block B are obtained, further, the difference between these, that is, second order difference information is generated, encoded, and sent to the decoding side. The disclosed subject matter is applied to an image encoding apparatus which encodes using the H.264/AVC scheme for example. <P>COPYRIGHT: (C)2011,JPO&INPIT |
