MOTION COMPENSATION METHOD AND MOTION COMPENSATION APPARATUS

摘要

PROBLEM TO BE SOLVED: To determine appropriate interpolation filter coefficients in consideration of image characteristics so as to generate a sub-pel-unit pixel by interpolating pel-unit pixels by image interpolation.SOLUTION: A method of interpolating an image in consideration of smoothing by determining interpolation filter coefficients includes: differently selecting an interpolation filter, from among interpolation filters for generating at least one sub-pel-unit pixel value located between pel-unit pixels on the basis of a sub-pel-unit interpolation location and a smoothness; and generating the at least one sub-pel-unit pixel value by interpolating, using the selected interpolation filter, pixel values of the pel-unit pixels.