TY - GEN
T1 - An adaptive slice group multiple description coding technique for real-time video transmission over wireless networks
AU - Parameswaran, Viswesh
AU - Murthy, Sudheendra
AU - Sen, Arunabha
AU - Li, Baoxin
PY - 2007
Y1 - 2007
N2 - This paper addresses the problem of transmitting real-time video over wireless networks. We propose improvements to multiple description coding technique using the slice group coding tools provided in H.264/AVC. The Macroblocks in each frame are mapped into different slice groups based on their motion vectors and distortion parameters. The slice group containing significant motion and distortion is fine quantized, while the other slice group is coarse quantized. The encoded quality scaled video is transmitted normally over the first path, but with a quantization offset on the second path. The proposed system provides a better quality video for the regions containing interesting targets. Simulation results in Network Simulator NS-2 confirm robust performance of the scheme under different packet loss conditions.
AB - This paper addresses the problem of transmitting real-time video over wireless networks. We propose improvements to multiple description coding technique using the slice group coding tools provided in H.264/AVC. The Macroblocks in each frame are mapped into different slice groups based on their motion vectors and distortion parameters. The slice group containing significant motion and distortion is fine quantized, while the other slice group is coarse quantized. The encoded quality scaled video is transmitted normally over the first path, but with a quantization offset on the second path. The proposed system provides a better quality video for the regions containing interesting targets. Simulation results in Network Simulator NS-2 confirm robust performance of the scheme under different packet loss conditions.
KW - Flexible Macroblock Ordering (FMO)
KW - Multiple Description Coding (MDC)
KW - Single Description Coding (SDC)
KW - Wireless networks
UR - http://www.scopus.com/inward/record.url?scp=47949124749&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=47949124749&partnerID=8YFLogxK
U2 - 10.1109/MILCOM.2007.4455024
DO - 10.1109/MILCOM.2007.4455024
M3 - Conference contribution
AN - SCOPUS:47949124749
SN - 1424415136
SN - 9781424415137
T3 - Proceedings - IEEE Military Communications Conference MILCOM
BT - Military Communications Conference, MILCOM 2007
T2 - Military Communications Conference, MILCOM 2007
Y2 - 29 October 2007 through 31 October 2007
ER -