SYSTEM AND METHOD FOR TIME-VARIABLY CONVERTING IMAGE VELOCITY AND RECORDING MEDIUM RECORDING TIME-VARIABLE IMAGE VELOCITY CONVERSION CONTROL PROGRAM

摘要

PROBLEM TO BE SOLVED: To vary the velocity of video with the passage of time according to a variable velocity magnification instructed from a variable velocity control part or the like by interpolating the video of time position determined by an interpolating position determining means based on the motion vector of video. ;SOLUTION: An inputted analog image is A/D converted by an A/D converter 2, and a digitized video signal is sent to a motion vector detection system and an interpolation system. A motion detecting part 4 detects a motion vector between the fields of the image through the method of repeated gradient using an initial eccentric vector based on the gradient method. Based on an extending/ shortening code showing the variable velocity magnification instructed from a variable velocity instructing part 1, the interpolation system composed of a field interpolating part 6 interpolates fields at arbitrary time positions (the fields of an arbitrary number) to the input video sent from the A/D converting part 2 appropriately within variable time. Thus, since the presenting velocity of video is changed with the passage of time, the velocity can be precisely varied with the passage of time.;COPYRIGHT: (C)1999,JPO