| 摘要 |
The present invention relates to an image processing device and method whereby deterioration in compression efficiency can be suppressed without increasing computation amount while improving predictive accuracy. A motion vector Ptmmv for moving, based on distance tn-1 on the temporal axis between this frame Fn and a reference frame Fn-1, and distance tn-2 on the temporal axis between the reference frame Fn-1 and a reference frame Fn-2, a block blkn-1 in parallel with the reference frame Fn-2 is obtained. Prediction error between the block blkn-1 and a block blkn-2 is calculated based on SAD to obtain SAD2. A cost function evtm for evaluating the precision of a motion vector tmmv based on SAD1 and SAD2.
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