TY - GEN
T1 - 3-D multiple description video coding for packet switched networks
AU - Somasundaram, Siva
AU - Subbalakshmi, K. P.
N1 - Publisher Copyright:
© 2003 IEEE.
PY - 2003
Y1 - 2003
N2 - Multiple description coding (MDC) schemes have become popular as robustness tools in packet switched networks where multiple paths with varying packet loss rates are available. In this paper we propose a new MDC scheme for video using 3D wavelet decomposition. The spatio-temporal coefficients are then grouped using either a random, uniform scheme or a hierarchical scheme. The descriptions are constructed by arranging a subset of these groups in two positions: primary and the secondary. The bit-allocation problem between the primary and secondary groups is formulated and solved using the generalized BFOS [E.A. Riskin, 1991] algorithm. The bits allocated to the secondary position may be zero, in which case, the description is said to be constructed with no redundancy. Experiments using bi-orthogonal wavelet for the spatial and Haar wavelet for the temporal decomposition, along with embedded block coding with optimal truncation for the different groups have shown significant performance for test video sequences. We expect that, for finite packet loss probability, the MDC scheme with redundancy does better than the scheme that does not have redundancy. In this paper, we also present a discussion of the differences between our work with the most recent 3D based video MDC scheme [Joohie Kim et al., 2002].
AB - Multiple description coding (MDC) schemes have become popular as robustness tools in packet switched networks where multiple paths with varying packet loss rates are available. In this paper we propose a new MDC scheme for video using 3D wavelet decomposition. The spatio-temporal coefficients are then grouped using either a random, uniform scheme or a hierarchical scheme. The descriptions are constructed by arranging a subset of these groups in two positions: primary and the secondary. The bit-allocation problem between the primary and secondary groups is formulated and solved using the generalized BFOS [E.A. Riskin, 1991] algorithm. The bits allocated to the secondary position may be zero, in which case, the description is said to be constructed with no redundancy. Experiments using bi-orthogonal wavelet for the spatial and Haar wavelet for the temporal decomposition, along with embedded block coding with optimal truncation for the different groups have shown significant performance for test video sequences. We expect that, for finite packet loss probability, the MDC scheme with redundancy does better than the scheme that does not have redundancy. In this paper, we also present a discussion of the differences between our work with the most recent 3D based video MDC scheme [Joohie Kim et al., 2002].
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U2 - 10.1109/ICME.2003.1220986
DO - 10.1109/ICME.2003.1220986
M3 - Conference contribution
AN - SCOPUS:20444433282
T3 - Proceedings - IEEE International Conference on Multimedia and Expo
SP - 589
EP - 592
BT - Proceedings - 2003 International Conference on Multimedia and Expo, ICME
T2 - 2003 International Conference on Multimedia and Expo, ICME 2003
Y2 - 6 July 2003 through 9 July 2003
ER -