| 摘要 |
PURPOSE:To improve a coding efficiency at the time of motion compensation. CONSTITUTION:A dynamic image compressor calculates plural motion vectors Emv, HEmv and prediction error energies Tene, Thene based on a partial picture segmented by prediction, extracts a high frequency component from the predicted difference picture and selects by a code length at the time of actually coding both a motion vector when the calculated prediction error energy is minimized and a motion vector when the prediction error energy calculated by the prediction error energy calculation means is a minimum value and the high frequency component is prescribed value or below, the motion vector to be adopted is selected and is determined. |
