Patent ID: 6630961
Filing Date: 2003-10-07
Classification: H04N

Abstract:
A deinterlacing device comprising:a field memory for storing m continuous field data including a nth field data, nâˆ’1th field data, and n+1th field data among a plurality of field data for an image; a motion determination part for detecting picture element values and brightness profile pattern difference values in specific lines existing among the field data stored in said field memory to calculate a motion value of a moving picture; a spatial interpolator for calculating a variation direction of picture element values on an area to be interpolated in the nth field data to output a direction value; a time interpolator for averaging the picture element values on the area to be interpolated in the nâˆ’1th field data and the picture element values on the area to be interpolated in the n+1th field data to output a picture element average value; and a soft switch for mixing the direction value from said spatial interpolator and the picture element average value from said time interpolator, based upon the motion value determined in said motion determination part to output the mixed result, wherein said motion determination part comprises: a brightness difference and brightness profile pattern difference detector for calculating the brightness difference and the brightness profile pattern difference in a field data; and a brightness difference and brightness profile pattern difference combiner for carrying out a mapping to a predetermined set value, if the brightness difference and the brightness profile pattern difference are over a predetermined threshold value, to measure the motion value.