A video decoder for decoding compressed high-definition video data. The video decoder
includes a down-converter and an up-converter placed in the decoder's data path to reduce
the amount of video data that needs to be stored in frame buffer memory. Reference frame
video data is decimated and low-pass filtered by the down-converter for storage in a frame
buffer memory. The up-converter uses interpolation and low-pass with high boost filtering to
reconstruct the reference frames on-the-fly for use in motion compensated prediction.

The present invention overcomes the foregoing and other Shortcomings and drawbacks of
compressed video signal decoders and decoding methods heretofore known. While the
invention will be described in connection with certain embodiments, it will be understood
that the invention is not limited to these embodiments. On the contrary, the invention
includes all alternatives, modifications and equivalents as may be included within the Spirit
and Scope of the present invention.