Premium
A codec for HDTV signal transmission through terrestrial and satellite digital links
Author(s) -
Cominetti Mario,
Molo Francesco
Publication year - 1992
Publication title -
international journal of digital and analog communication systems
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.344
H-Index - 49
eISSN - 1099-1131
pISSN - 1047-9627
DOI - 10.1002/dac.4510050303
Subject(s) - codec , computer science , discrete cosine transform , high definition television , data compression , computer hardware , adaptive multi rate audio codec , electronic engineering , real time computing , telecommunications , algorithm , computer vision , engineering , speech processing , image (mathematics) , voice activity detection
A codec for digital transmission of HDTV is described. The bit‐rate compression algorithm is based on advanced techniques such as spatial discrete cosine transform (DCT), temporal differential PCM (DPCM), variable length coding. The codec is designed to operate with both the interlaced studio systems 1125/60 and 1250/50, and, thanks to the inherent flexibility of the packet structure, a wide range of line bit‐rates can be used as a compromise between video quality and bit‐rate constraints of the digital transmission link. The flexibility of the HDTV codec is highlightened through examples of applications over satellite digital links in practical situations.