MOTION VECTOR DETECTING APPARATUS, MOTION VECTOR DETECTING METHOD, AND COMPUTER PROGRAM

摘要

An apparatus and method are provided which produce a precise evaluation value table to realize an exact motion vector detection process. A weighting factor (W) is calculated based on information of correlation between representative point pixels and on flag correlation information based on flag data corresponding to pixel value difference data between a pixel of interest and its neighboring area pixels. A reliability index is produced based on the calculated weighting factor (W) and on an activity (A) serving as an indicator value indicative of complexity of picture data. Alternatively, a reliability index is produced based on a motion similarity between a representative point pixel and its neighboring pixels. An evaluation value table is produced in which evaluation values corresponding to the reliability indices have been integrated. In addition, a correlation determination is executed based on the pixel values or positions of featuring pixels on the periphery of the pixel of interest to determine a motion vector.