The image encoding / decoding method and apparatus using a high-precision filter

Embodiment of the invention relates to a video encoding / decoding method and apparatus using a high-precision filter. One embodiment of the invention, there is provided a method for coding / decoding an image, the prediction block values ​​of the sub-sample components of a reference block referred to by the motion vector of the current block from a FIR filter and a value obtained by linear interpolation using the interpolation by generating the encoded and decoded more accurately interpolate a current block a, may decrease to increase the encoding efficiency of a difference between the predicted block and the actual block, and provides a video encoding / decoding method and apparatus for improving the compression efficiency by him .