| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To reduce an operation amount of two-dimensional orthogonal transformation. <P>SOLUTION: This image processing device calculates difference between a first pixel value matrix (Bc_l) regarding a pixel which does not overlap a first prediction block in a second prediction block and a second pixel value matrix (Bp_l) regarding a pixel which does not overlap the second prediction block in the first prediction block. Then, by using a calculated differential value matrix as a target matrix for orthogonal transformation, the image processing device performs first orthogonal transformation and second orthogonal transformation to the differential value matrix using an orthogonal transformation matrix. The image processing device calculates a second transformation coefficient matrix regarding a second block by complementing conversion coefficient matrixes after the first and second orthogonal transformation, using a first conversion coefficient matrix regarding the first prediction block. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
