Patent ID: 6898245

Claim:
A method of processing a compressed video bit stream corresponding to a compressed video signal having a first resolution to provide a video signal having a second resolution lower than the first resolution for use by a display unit having the second resolution, said method comprising: downscaling the compressed video bit stream, said downscaling step including removing transform components; decoding the downscaled compressed video bit stream using modified prediction to provide the video signal having the second resolution, said decoding step including the steps of: scaling a motion vector; if said motion vector is full-pel, using spline-interpolating filters for scaling motion compensation; if said motion vector is half-pel and k=7, using bilinear blur for scaling motion compensation; if said motion vector is half-pel in the horizontal and vertical direction and k=6, using bilinear blur for scaling motion compensation; and if said motion vector is half-pel and k<6, using 4-tap filters with limited blur for scaling motion compensation, wherein said modified block Size is k*k, where k<8; and using the video signal having the second resolution to display an image on the display unit at the second resolution.