Title :
A real-time HDTV signal processor: HD-VSP-system and applications
Author :
Tamitani, Ichiro ; Harasaki, Hidenobu ; Nishitani, Takao
Author_Institution :
NEC Corp., Kawasaki, Japan
Abstract :
A programmable real-time HDTV (high-definition television) video signal processor (HD-VSP) has been developed. The HD-VSP is composed of multiprocessor clusters. Each cluster is compatible with a previously reported VSP. The VSP has introduced flexible software control capability in conventional TV signal processing. In order to expand such flexibility for HDTV signals, the developed HD-VSP employs a signal conversion technique. The HDTV sampling rate is reduced to that of plural conventional TV signals, each of which can be processed by VSP parallel multiprocessor clusters. Therefore, programs developed for conventional TV signals on the VSP are also applied to HDTV signals by the new system. Several coder programs, including a discrete cosine transform coder and an intraframe differential PCM (pulse code modulation) coder, are developed to evaluate real-time HDTV coding efficiency
Keywords :
computerised picture processing; encoding; high definition television; parallel processing; pulse-code modulation; real-time systems; video signals; discrete cosine transform coder; intraframe DPCM coder; parallel multiprocessor clusters; real-time HDTV signal processor; Application software; Discrete cosine transforms; HDTV; High definition video; Phase change materials; Pulse modulation; Signal processing; Signal sampling; TV; Video signal processing;
Conference_Titel :
Communications, 1990. ICC '90, Including Supercomm Technical Sessions. SUPERCOMM/ICC '90. Conference Record., IEEE International Conference on
Conference_Location :
Atlanta, GA
DOI :
10.1109/ICC.1990.117234
