MOTION VECTOR DETECTING DEVICE

摘要

The present invention relates to a motion-vector detection device capable of detecting a motion vector of the entire frame image having high reliability. The peak detector (317) sequentially shifts a relative position to be a comparison target for a relative position to be a reference position (horizontal motion vector) from the minus side to the plus side, and on each time, compares the size of the vertical-block n-arized data at both relative positions. In this case, the peak detector (317) changes the vertical-block n-arized data, which is determined to be larger by the comparison, to the reference value (or maintains as the reference value), and compares with a relative position to be a succeeding comparison target. The maximum value Pn (peak value) of the vertical-block n-arized data can be obtained by repeating this process.