Robust transmission of H.264/AVC streams using adaptive group slicing and unequal error protection
EURASIP Journal on Applied Signal Processing
Rate-distortion optimized frame dropping for multiuser streaming and conversational videos
Advances in Multimedia
A new unequal error protection scheme based on FMO
Multimedia Tools and Applications
Optimizing motion compensated prediction for error resilient video coding
IEEE Transactions on Image Processing
Real-Time video over programmable networked devices
NPC'05 Proceedings of the 2005 IFIP international conference on Network and Parallel Computing
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This paper presents an algorithm to optimize the tradeoff between rate and expectedend-to-end distortion of a video sequence transmitted over a packet network.The approach optimizes the source coding parameters, slicing, network QoS classselection and/or error control coding parameters, and accounts for the effects of compression,packetization, error propagation, and concealment at the decoder. It buildson, and substantially extends the applicability of, the recursive optimal per-pixel estimate(ROPE) technique for end-to-end distortion estimation. A trellis-based algorithmis introduced in order to overcome macroblock interdependencies in the estimationprocedure, and allow adaptive slicing. Moreover, we propose a complementary packetizationscheme to efficiently arrange the slices into packets for FEC protection whileminimizing rate loss due to padding. Simulations demonstrate consistent gains overcurrently used techniques.