1. An apparatus for interlacing a progressive video sequence to produce an interlaced video sequence, the apparatus comprising: a frame buffer configured to store a plurality of consecutive progressive frames; and a processor coupled to the frame buffer that is configured to take first and second consecutive frames from the frame buffer, apply object motion estimation to determine motion vectors representing motion of segments between the first and second consecutive frames, interpolate the motion vectors so as to express motion between the first frame and an intermediate frame which is located temporally between the first and second consecutive frames, and construct the intermediate frame using the interpolated motion vectors, wherein the processor is further configured to fill exposed areas remaining in the intermediate frame.