A real-time HDTV signal processor: HD-VSP-system and applications

Author

Tamitani, Ichiro ; Harasaki, Hidenobu ; Nishitani, Takao

Author_Institution

NEC Corp., Kawasaki, Japan

fYear

1990

fDate

16-19 Apr 1990

Firstpage

1054

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications, 1990. ICC '90, Including Supercomm Technical Sessions. SUPERCOMM/ICC '90. Conference Record., IEEE International Conference on

Conference_Location

Atlanta, GA

Type

conf

DOI

10.1109/ICC.1990.117234

Filename

117234