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Multi-dimensional adaptive sampling rate conversion

: Reuter, T.

IEEE Acoustics, Speech, and Signal Processing Society -ASSP-:
ICASSP 87, International Conference on Acoustics, Speech, and Signal Processing. Proceedings. Vol.4 : April 6, 7, 8, 9, 1987 Registry Hotel Dallas, Texas
Piscataway, NJ: IEEE, 1987
International Conference on Acoustics, Speech, and Signal Processing (ICASSP) <12, 1987, Dallas/Tex.>
Fraunhofer HHI ()
filtering and prediction theory; interpolation; television standards; television systems; video signals; multidimensional adaptive sampling rate conversion; television standard; high definition television; HDTV; motion picture film; degradations; motion-vector adaptive interpolation filter; block matching method; change detection; segmentation

Multidimensional sampling rate conversion will gain increased practical importance in connection with the introduction of high definition television (HDTV) systems. To convert signals from one HDTV standard to any other standard (TV, HDTV or motion picture film), improved converters that avoid the degradations inherent in conventional converters are needed. After a description of the general multidimensional sampling rate conversion and a summary of the degradations of conventional standards converters, a concept for an improved conversion using a motion-vector adaptive interpolation filter is presented. A block matching method is used to estimate the motion vectors. Concepts for the change detection and the segmentation are presented.