Patent ID: 6396543
Filing Date: 2002-05-28
Classification: H04N

Abstract:
A deinterlacing apparatus comprising:a field data storage unit which stores field data; a BD & BPPD detecting unit which calculates a brightness profile pattern difference (BPPD) value and a brightness difference (BD) value between a current interlaced field n and a previous interlaced field (nâˆ’2); a combiner which respectively limits the BD and BPPD values by a threshold value, maps the limited BD and BPPD values to preset levels, compares the magnitudes and decides a presence and extent of motion to output detected motion; a motion extender which extends an effect of the detected motion to pixels adjacent to a pixel to be interpolated; an edge detector which detects an edge direction around a pixel to be interpolated; and a interpolation unit which interpolates a pixel according to the output of the edge detector and the output of the motion extender, and outputs a non-interlaced field.