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A comparative study of diamond-shaped passband filters for subband coding

: Lameillieure, J. de; Schamel, G.; Golz, U.; Leptin, M.

Yasuda, H. ; European Association for Signal Processing -EURASIP-:
Signal processing of HDTV, III : Proceedings of the Fourth International Workshop on HDTV and beyond, Turin, Italy, 4 - 6 September 1991
Amsterdam: Elsevier, 1992
ISBN: 0-444-89491-8
International Workshop on HDTV and beyond <4, 1991, Torino>
Conference Paper
Fraunhofer HHI ()
band-pass filters; filtering and prediction theory; high definition television; image coding; two-dimensional digital filters; nonseparable filters; diamond-shaped passband filters; subband coding; quincunx subsampling; filter banks; efficiency; HDTV

This contribution focuses on the analysis and synthesis filter banks for subband coding with non-separable filters and quincunx subsampling. This kind of subband coding is very interesting if the filters have a diamond-shaped passband characteristic. After a review of different methods to calculate this kind of filter banks their efficiency for HDTV subband coding is compared.