US Patent 11109051 Motion compensation using temporal picture interpolation

The present disclosure relates to the use of hierarchical algorithms to temporally interpolate enhanced reference pictures for use in video encoding and decoding. According to a first aspect, there is provided a method of generating enhanced reference pictures in a video encoding and/or decoding process, the method comprising: receiving one or more known reference elements of video data from a reference picture buffer; generating, using one or more hierarchical algorithms, one or more additional reference elements of video data from the one or more known reference elements of video data; and outputting the one or more additional reference elements of video data; wherein the generating the one or more additional reference elements of video data from the one or more known reference elements of video data comprises the use of temporal interpolation.