Improving the HDTV picture performance under noisy transmission conditions

Author

Nasiopoulos, Panos ; Ward, Rabab K.

Author_Institution

Dept. of Electr. Eng., British Columbia Univ., Vancouver, BC, Canada

Volume

5

fYear

1993

fDate

27-30 April 1993

Firstpage

277

Abstract

A simple yet effective method for data synchronization of HDTV (high-definition television) signals is introduced. The scheme reduces the number of occurrences of undetected errors and limits the effects of errors to blocks of 512 pixel areas instead of the 1024, 3072, and 5632 pixel areas proposed by other schemes. Undetected errors are prevented from propagating to adjacent areas of the picture, and their effects are localized to within the 32*16 superblock in which the errors occur. This method does not change the compression rate while lowering the SNR at which picture loss occurs by 2.5 to 3 dB. This improvement is irrespective of the rate of the Reed-Solomon coding rate used by the HDTV system.<>

Keywords

Reed-Solomon codes; coding errors; high definition television; synchronisation; television interference; HDTV picture performance; Reed-Solomon coding; compression rate; data synchronization; errors; high-definition television; noisy transmission; superblock;

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics, Speech, and Signal Processing, 1993. ICASSP-93., 1993 IEEE International Conference on

Conference_Location

Minneapolis, MN, USA

ISSN

1520-6149

Print_ISBN

0-7803-7402-9

Type

conf

DOI

10.1109/ICASSP.1993.319801

Filename

319801