Motion vector detector and motion vector detecting method

摘要

A vector motion detector is provided which corrects the quantity of a motion vector determined from a block matching technique. The block matching technique identifies a reference pixel extracted from a current frame as its origin and a search block extracted from a reference frame and moving within or along the circumference of a search range and outside the search range. The vector motion detector makes the motion vector quantity correction so that the motion vector will fall within the search range. Thus, it can provide a smooth motion of even a fast moving image.