Compatible analog coding of television signals for correction of transmission burst errors: a computer evaluation

Author

Kim, Hee-Yong ; Marshall, T.G., Jr.

Author_Institution

Dept. of Electr. & Comput. Eng., Rutgers Univ., Piscataway, NJ, USA

Volume

36

Issue

3

fYear

1990

fDate

8/1/1990 12:00:00 AM

Firstpage

223

Lastpage

229

Abstract

Methods for encoding a TV signal in analog or digital formats in such a manner that bursts of impulse errors can be corrected are described. The procedure is insensitive to ghosts and other horizontal processing, and can be applied to composite signals prior to operations such as ghost removal, separation of chrominance and luminance, motion estimation, and scan conversion; thereby, these latter algorithms and the image viewing quality are enhanced by burst error correction. Redundant lines, transmitted during vertical retrace, are added to each field in a TV signal. As few as two lines need be added, amounting to 0.76% redundancy, and they can be computed by the addition and subtraction of field lines, a special case of vertical (comb) filtering. The predicted performance in the presence of background and impulse noise is good, and is verified by computations on NTSC fields

Keywords

computer aided analysis; encoding; error correction codes; telecommunications computing; video signals; NTSC fields; TV signal; algorithms; analog format; background noise; burst error correction; chrominance; compatible analog coding; composite signals; computer evaluation; encoding; ghost removal; image viewing quality; impulse errors; impulse noise; luminance; motion estimation; scan conversion; television signals; transmission burst errors; vertical comb filtering; Analog computers; Background noise; Computer errors; Degradation; Encoding; Error correction; Filtering; Motion estimation; Redundancy; TV;

fLanguage

English

Journal_Title

Consumer Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0098-3063

Type

jour

DOI

10.1109/30.103126

Filename

103126