130 Mbit/s (H4 rate) HDTV codec based on the DCT algorithm

2 August 1990

journal article
Published by Institution of Engineering and Technology (IET) in Electronics Letters

Vol. 26 (16) , 1245-1246
https://doi.org/10.1049/el:19900802

Abstract

The hardware implementation of a 130 Mbit/s (H4 rate) HDTV CODEC based on the DCT (discrete cosine transform) algorithm is studied for transmission in broadband ISDN (BISDN). The intrafield 2-dimensional DCT, nonlinear fixed bit quantisation of eight classes with switchable operation between y and Pr/Pb, and the four parallel signal processing possible by DCT are also implemented in the CODEC. Performance evaluation confirms that the developed CODEC has sufficient picture quality and is practical for HDTV distribution use.

Keywords

130 MBIT/S
SWITCHABLE OPERATION
FOUR PARALLEL SIGNAL PROCESSING
DISCRETE COSINE TRANSFORM
H4 RATE
HARDWARE IMPLEMENTATION
PICTURE QUALITY
HDTV DISTRIBUTION
BROADBAND ISDN
INTRAFIELD TWO-DIMENSIONAL DCT
DCT ALGORITHM
NONLINEAR FIXED BIT QUANTISATION OF EIGHT CLASSES
HDTV CODEC
CABLE TV
PRACTICAL
BISDN

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