Apparatus for converting screen aspect ratio

A video receiver system for displaying video signals received in a first format to a second format and operable with at least one of encoded bit stream signal and sampled video signal, the receiver system comprising:

• a decoder for decoding the bit stream signal and outputting a decoded video signal and a motion vector signal included in the bit stream signal;
• first and second frame buffers for storing at least one of the decoded video signal and the sampled video signal;
• a motion vector estimation unit for estimating block motion vectors by comparing a first frame with a second frame stored in the first and second frame buffers and outputs an estimated motion vector signal, wherein the first and second frames are displaced in time;
• a motion vector filter for filtering at least one of the motion vector signal from the decoder and the estimated motion vector signal from the motion vector estimation unit by providing at least one of spatial and temporal filtering and producing a filtered motion vector signal;
• a global motion information extraction unit for extracting the global motion information from the filtered motion vector signal and outputting a global motion information signal;
• and
• a composite image generator for generating data for image signal lacking regions in a frame in response to the global motion information signal, the filtered motion vector signal and data from first frame buffer.