Design of 2-D digital video filters for a PALplus-compatible HDTV transmission encoder

Author

Schmidt, G. ; Dooley, L.S. ; Buchwald, W.P.

Author_Institution

Glamorgan Univ., UK

fYear

1990

fDate

25-25 May 1990

Firstpage

42491

Lastpage

42496

Abstract

This paper discusses the many and varied design considerations for the 2-D digital video filters that are used in the implementation of an HDTV encoder which enables PALplus-compatible transmissions. In particular, the design trade-offs and overall performance of a quadrature mirror filter pair, which is used in combination with a 2-D diagonal prefilter is explored and the ensuing problems of crosstalk and signal reconstruction at the decoder are highlighted. The difficulties encountered in processing an interlaced HDTV signal are also examined and an effective solution proposed.<>

Keywords

crosstalk; high definition television; image reconstruction; quadrature mirror filters; television transmitters; two-dimensional digital filters; video coding; video equipment; 2D diagonal prefilter; 2D digital video filters; HDTV transmission encoder; PALplus-compatible HDTV; QMF pair; crosstalk; interlaced HDTV signal; quadrature mirror filter; signal reconstruction; Crosstalk; HDTV; Image reconstruction; Multidimensional digital filters; Quadrature mirror filters; TV transmitters; Video coding; Video equipment;

fLanguage

English

Publisher

iet

Conference_Titel

Digital and Analogue Filters and Filtering Systems, IEE Colloquium on

Conference_Location

London, UK

Type

conf

Filename

472884