PURPOSE: To reduce the quantity of arithmetic operation of motion vector detec tion.
CONSTITUTION: Image data read from frame memories 12, 13 in the 1st step are subjected to frequency band limit and sub-sampling by a spatial filter 14 and the result is fed to a block matching circuit 17. The block matching circuit 17 used block matching to select plural moving vector objects with high similarity and provides an output to a memory control circuit 18. In the 2nd step, the memory control circuit 18 gives an address corresponding to a motion vector object to the frame memories 12, 13, which read corresponding data. The read video image data are fed to the block matching circuit 17 without any modification, which detects a vector with highest similarity as a motion vector by the block matching method.
YOSHIDA TETSUO
MATSUO AKIHIKO
