US Patent 7408988 Motion estimation engine with parallel interpolation and search hardware

A method for motion estimating. The method generally includes the steps of (A) generating a first interpolated block having a sub-pixel resolution in response to a first interpolation process operating on a reference block of a reference frame of a video signal having an integer pixel resolution, (B) generating a motion vector in response to the first interpolated block and a current block of a current frame of the video signal having the integer pixel resolution and (C) generating a second interpolated block having the sub-pixel resolution in response to a second interpolation process operating on the reference block.