Packet cloning logic receives an original stream of packets communicated from a source device. The method further includes upsampling the frequency encoded imaging signals by an integer upsampling factor, reducing the bandwidth of the frequency encoded imaging signals, and downsampling the frequency encoded imaging signals by an integer downsampling factor. A second best match search is performed using the rough motion vectors identified by the first search within a limited range in the X and Y directions for each macroblock of the first scaled frame to identify intermediate motion vectors.