Patent ID: 7756361
Filing Date: 2010-07-13
Classification: G06T,G09G

Abstract:
1. An image interpolation apparatus to interpolate an input image signal having a first resolution into an output image signal having a second resolution according to a predetermined resolution conversion ratio, the apparatus comprising: a frequency determiner to detect a variation in a frequency of the input image signal to determine a frequency domain that corresponds to the input image signal; a controller to calculate interpolation positions of the input image signal according to the predetermined resolution conversion ratio; a coefficient storage to store interpolation coefficients that correspond to the interpolation positions; an interpolation filter to receive the interpolation coefficients from the coefficient storage and to interpolate the input image signal accordingly; and an interpolation value corrector to correct the output image signal interpolated from the input image signal output from the interpolation filter based on information as to the frequency domain of the input image signal determined by the frequency determiner.