Verfahren zur Interpolation von Chrominanzsignalen in Videocodierern und Videodecodierern

摘要

Disclosed is a method for interpolating chrominance signals in a video encoder and a decoder. The method includes the steps of accessing a memory unit to load an integer pixel value with regard to a plurality of motion compensation blocks, searching for a location of a motion vector s to perform sub-pixel interpolation of chrominance signals regarding the blocks and performing 1/4 sub-pixel interpolation by row-based and column-based shifting when the motion vector indicates a 1/4 location pixel with regard to the blocks. Also disclosed is an apparatus for performing the interpolating method described and a computer program product which when loaded into a computer system performs the interpolating method described.