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Flexible bit rate coding for satellite transmission of HDTV

: Guillemot, C.; Guirao, F.; Perron, C.; Schäfer, R.; Stierle, H.

Dubois, E. ; European Association for Signal Processing -EURASIP-:
Signal processing of HDTV, IV : Proceedings of the International Workshop on HDTV '92, Kawasaki, Japan, November 18 - 20, 1992
Amsterdam: Elsevier, 1993
ISBN: 0-444-81551-1
International Workshop on HDTV <1992, Kawasaki, Japan>
Conference Paper
Fraunhofer HHI ()
codecs; direct broadcasting by satellite; discrete cosine transforms; high definition television; image coding; television broadcasting; ccir recommendation 723; satellite transmission; coding; bit rates; dct; subband schemes; etsi-codec; performance; hardware complexity; time constraints; transmission conditions; 34 to 70 mbit/s

Describes coding schemes for HDTV with flexible bit rates between 34 and 70 Mbit/s. DCT and subband schemes have been investigated and compared and finally a DCT scheme based on a modified ETSI-codec (CCIR-Rec. 723) has been selected for hardware implementation balancing coding performance, hardware complexity and time constraints. This codec is part of a satellite transmission system for HDTV contribution, which adapts its user bit rate automatically to the actual transmission conditions.