DocumentCode :
3211357
Title :
Transmission of 4:2:2 formatted video on SDH/PDH networks
Author :
Nielsen, O.S.
Author_Institution :
RE Technol. AS, Denmark
fYear :
1996
fDate :
12-16 Sep 1996
Firstpage :
565
Lastpage :
569
Abstract :
In various stages of the processes in the broadcast industry and in high-quality contribution, the questions of transparency and room for further processing, are of utmost importance. In this environment, the 4:2:2 video format plays an important role, and the increased need for networking calls for special attention to 4:2:2 compatible video codecs. The data rate of the 4:2:2 format is 270 Mbit/s, and a 4:2:2 signal may therefore not be transmitted on the widespread 140 Mbit/s PDH or on the increasingly important 155 Mbit/s SDH/SONET networks without bit rate reduction (BRR). However, by means of a moderate BRR of about 2.1, it is considered possible to keep a codec nearly transparent, even with multiple cascadings. The paper demonstrates a video codec based on DCT processing which allows transmission of 4:2:2 formatted video on SDH, SONET and PDH networks, and discusses the results of development at RE Technology
Keywords :
video codecs; 140 Mbit/s; 155 Mbit/s; 270 Mbit/s; 4:2:2 formatted video transmission; DCT processing; PDH networks; RE Technology; SDH networks; SONET networks; bit rate reduction; broadcast industry; data rate; video codecs;
fLanguage :
English
Publisher :
iet
Conference_Titel :
Broadcasting Convention, International (Conf. Publ. No. 428)
Conference_Location :
Amsterdam
ISSN :
0537-9989
Print_ISBN :
0-85296-663-6
Type :
conf
DOI :
10.1049/cp:19960870
Filename :
643240
Link To Document :
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