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|Title:||A robust codec for transmission of very low bit-rate video over channels with bursty errors|
|Authors:||Lee, W.S. |
Multiple description codes
Robust video transmission
Unequal error protection
|Source:||Lee, W.S.,Pickering, M.R.,Frater, M.R.,Arnold, J.F. (2000). A robust codec for transmission of very low bit-rate video over channels with bursty errors. IEEE Transactions on Circuits and Systems for Video Technology 10 (8) : 1403-1412. ScholarBank@NUS Repository. https://doi.org/10.1109/76.889033|
|Abstract:||We describe a robust codec for the transmission of very low bit-rate video over channels with a variety of errors, including random and bursty bit errors and packet loss. The codec exploits adaptivity to give good performance with a low overhead. By only protecting macroblocks which would otherwise be poorly concealed by the decoder, the codec allows adaptive selection of the parts of video to protect. For protection, it uses multiple description codes which indirectly provide frequency-based adaptivity by protecting the more significant DCT coefficients. Simulations show significant improvements in the performance of the codec when compared to codecs which use intra macroblock updating (raster scan and random) at the same overhead. The codec is efficient in its use of bits and has good error resilience properties both objectively and subjectively over a wide range of conditions. Further, transcoding of the received bit stream to the standard H.263 syntax is relatively easy. © 2000 IEEE.|
|Source Title:||IEEE Transactions on Circuits and Systems for Video Technology|
|Appears in Collections:||Staff Publications|
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