Title :
A compact 100-160 Mb/s HDTV DPCM-AQ codec
Author :
Kawai, Osamu ; Okazaki, Takeshi ; Matsuda, Kiichi ; Hosokawa, Takahiro ; Yamanaka, Toshihiro
Author_Institution :
Fujitsu Lab. Ltd., Kawasaki, Japan
Abstract :
A compact and economical HDTV (high-definition TV) codec is described. It employs DPCM (differential pulse code modulation)-based variable-length coding and transmits 1125/60 HDTV signals at rates from 100 to 160 Mb/s. DPCM-AQ (adaptive quantization) with variable-length codes was employed to achieve ease of hardware structure and required picture quality for distribution services. Performance evaluation showed that a satisfactory picture quality was obtained for practical use, even at a 100 Mb/s transmission rate, with only a slightly perceptible resolution loss in complex textures
Keywords :
codecs; computerised picture processing; encoding; high definition television; pulse-code modulation; video signals; 100 to 160 Mbit/s; 1125/60 HDTV signals; HDTV codec; adaptive quantization; differential pulse code modulation; picture quality; variable-length codes; B-ISDN; Bandwidth; Codecs; HDTV; Hardware; Signal resolution; Spatial resolution; TV broadcasting; Telephony; Tellurium;
Conference_Titel :
Global Telecommunications Conference and Exhibition 'Communications Technology for the 1990s and Beyond' (GLOBECOM), 1989. IEEE
Conference_Location :
Dallas, TX
DOI :
10.1109/GLOCOM.1989.63974
