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Proceedings Paper

Design of an HDTV subband codec considering CMOS-VLSI constraints
Author(s): Ulrike Pestel-Schiller; Bernd Schmale
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Paper Abstract

A coding technique for the transmission of HDTV signals at a bit rate of 140 Mbit/s is presented. Since the capability of downward compatibility to standard TV is desired a four band subband approach has been taken. Because of the intended realization of the codec using CMOSVLSI technology the subband filter bank and the coding algorithm are designed considering hardware constraints and system restrictions of the subband filterbank. The design results in Quadrature Mirror Filters realizable with simple integer arithmetic. An adaptive intrafield coding algorithm is used for coding the four subbands. Separable QMFs with 1 0 coefficients in vertical and 1 4 coefficients in horizontal filtering are preferred to QMFs with less coefficients because of the coding gain.

Paper Details

Date Published: 1 September 1990
PDF: 9 pages
Proc. SPIE 1360, Visual Communications and Image Processing '90: Fifth in a Series, (1 September 1990); doi: 10.1117/12.24244
Show Author Affiliations
Ulrike Pestel-Schiller, Univ. Hannover (Germany)
Bernd Schmale, Univ. Hannover (Germany)


Published in SPIE Proceedings Vol. 1360:
Visual Communications and Image Processing '90: Fifth in a Series
Murat Kunt, Editor(s)

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