Patent ID: 7075988
Filing Date: 2006-07-11
Classification: H04N

Abstract:
1. A method of converting a frame and/or field rate of an input image signal, the method comprising: estimating a motion vector of a frame and/or field to be interpolated and an accuracy of the motion vector using motion vectors of previous and next frames and/or fields; determining motion information by analyzing the estimated motion vector estimated in the estimating the motion vector while calculating a correlation between a motion vector of a current block and motion vectors of neighboring blocks for the frame and/or field to be interpolated; generating first pixels to be interpolated by performing motion compensation in the frame and/or field to be interpolated using the estimated motion vector; generating second pixels to be interpolated using pixels neighboring a pixel to be interpolated in the frame and/or field to be interpolated and pixels neighboring the pixel to be interpolated in the previous and next frame and/or field of the pixel to be interpolated; and outputting pixels generated in the generating the first and second pixels to be interpolated as interpolation values according to an accuracy of the estimated motion vector and the determined motion information and the calculated correlation.