Title :
Packing coded video signals into ATM cells
Author :
Ghanbari, Mohammad ; Hughes, Charles J.
Author_Institution :
Dept. of Electron. Syst. Eng., Essex Univ., Colchester, UK
fDate :
10/1/1993 12:00:00 AM
Abstract :
The output from an H.261 or MPEG video coder consists of macroblocks of differing lengths. Two methods of packing the macroblocks into ATM cells are considered, depending on whether or not part of an uncompleted macroblock may be carried over to the next cell. It is shown that while due to cell loss for a single source loosely packed cells result in a smaller number of lost macroblocks, in a multiplexed network closely packed cells have a marginally better performance
Keywords :
asynchronous transfer mode; codecs; data compression; image coding; video equipment; video signals; ATM cells; H.261 video coder; MPEG video coder; cell loss; closely packed cells; coded video signals packing; loosely packed cells; macroblocks; multiplexed network; Asynchronous transfer mode; Bit rate; Helium; Image communication; Payloads; Performance loss; Protection; Transform coding; Video codecs; Video compression;
Journal_Title :
Networking, IEEE/ACM Transactions on
