Design of an HDTV subband codec considering CMOS-VLSI constraints

Ulrike Pestel-Schiller; Bernd Schmale

doi:10.1117/12.24244

1 September 1990 Design of an HDTV subband codec considering CMOS-VLSI constraints

Ulrike Pestel-Schiller, Bernd Schmale

Proceedings Volume 1360, Visual Communications and Image Processing '90: Fifth in a Series; (1990) https://doi.org/10.1117/12.24244
Event: Visual Communications and Image Processing '90, 1990, Lausanne, Switzerland

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 CMOS-VLSI 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 10 coefficients in vertical and 14 coefficients in horizontal filtering are preferred to QMFs with less coefficients because of the coding gain.

Citation Download Citation

Ulrike Pestel-Schiller and Bernd Schmale "Design of an HDTV subband codec considering CMOS-VLSI constraints", Proc. SPIE 1360, Visual Communications and Image Processing '90: Fifth in a Series, (1 September 1990); https://doi.org/10.1117/12.24244

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