To ensure high image quality and to attain high speed processing while reducing power consumption.
In the signal processing method for moving image information for motion compensation prediction between two images apart in time series, the process of a block matching in an unretrieved area after a difference absolute sum of pixels being an index for detecting a motion vector reaches at first a prescribed threshold value is forcibly terminated. Thus, possible excess signal processing is excluded in a range of keeping sufficiently high image quality and the power consumption of a difference absolute sum array 8 calculating a difference absolute sum is realized. The difference absolute sum array 8 is provided with a comparator circuit 9 that sequentially compares the calculated difference absolute sum with a prescribed threshold level and the comparator circuit 9 provides a prescribed output when the difference absolute sum reaches the prescribed threshold level.
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SASAJIMA YASUMASA
HIROBE ATSUNORI
