VIDEO FORMAT CONVERSION APPARATUS FOR CONVERTING INTERLACE VIDEO FORMAT INTO PROGRESSIVE VIDEO FORMAT USING MOTION-COMPENSATION

Video format conversion apparatus and method for a high-definition TV capable of achieving motion compensation by macroblocks, determining stationary condition, motion-involved condition and scene change by pixels, and achieving interpolation by pixels, thereby accurately realizing conversion of a video of the interlaced scanning format into a video of the progressive scanning format. The video formation conversion is achieved by substituting the value of the current pixel by the mean of the values of reference pixels, positioned at the same position as the current pixel, respectively in a previous field and a next field when the current pixel is a stationary pixel, interpolating the current pixel through a motion compensation when the current pixel is a motion-involved pixel, determining whether a displaced frame difference is less than a predetermined threshold value when the current pixel is neither of the stationary one or the motion-involved one, substituting the current pixel value with the mean value of the reference pixel values in the previous and next fields when the displaced frame difference is less than the threshold value, and substituting the current pixel value by use of intra-field pixel values when the displaced frame difference is not less than the threshold value.