Subband DCT Codec Applied to HDTV Transmission System

Naoya SAKURAI  Kazunari IRIE  Ryozo KISHIMOTO  

IEICE TRANSACTIONS on Communications   Vol.E76-B   No.4   pp.431-437
Publication Date: 1993/04/25
Online ISSN: 
Print ISSN: 0916-8516
Type of Manuscript: PAPER
Category: Communication Systems and Transmission Equipment
subband,  DCT,  CODEC,  HDTV,  source encoding,  

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The transmission of HDTV signals on digital networks requires adoption of sophisticated compression techniques to limit the bit-rate requirements and to provide a high-quality and reliable services to customers. This paper describes system design and transmission characteristics of an adaptive subband DCT codec that can encode original 1.2Gb/s HDTV signals at 156Mb/s. The performance of the codec was evaluated using motion picture signals. The characteristics obtained with the codec was found to maintain good picture quality.