Multidimensional interpretation of NTSC encoding and decoding

Author

Isnardi, Michael A.

Author_Institution

David Sarnoff Res. Center, Princeton, NJ, USA

Volume

34

Issue

1

fYear

1988

fDate

2/1/1988 12:00:00 AM

Firstpage

179

Lastpage

193

Abstract

NTSC color encoding and decoding are analyzed in spatiotemporal frequency space. The mapping of important 1-D electrical frequencies, such as the color subcarrier, into 3-D space is discussed. Spatiotemporal frequencies that contribute to cross-color and cross-luma artifacts become readily apparent in the 3-D spectral domain. The use of matched pre- and postfilters to decrease and theoretically eliminate luma/chroma crosstalk is discussed. Lowpass/bandpass, line-comb, and field-comb implementations are examined

Keywords

decoding; encoding; filtering and prediction theory; matched filters; picture processing; video signals; 1-D electrical frequencies; 3-D space; 3-D spectral domain; NTSC; bandpass filter; color encoding; color subcarrier; colour decoding; cross-color; cross-luma artifacts; field-comb filter; line-comb filter; lowpass filter; luma/chroma crosstalk; mapping; matched postfilters; matched prefilters; picture processing; spatiotemporal frequency space; video signals; Cameras; Decoding; Encoding; Frequency; Multidimensional systems; Optical crosstalk; Optical filters; Optical receivers; Spatiotemporal phenomena; TV;

fLanguage

English

Journal_Title

Consumer Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0098-3063

Type

jour

DOI

10.1109/30.75386

Filename

75386