Data Compression Conference (DCC '99) Multiple Description Lattice Vector Quantization Snowbird, Utah March 29-March 31 ISBN: 0-7695-0096-X
We consider the problem of designing a lattice-based multiple description vector quantizer for a two-channel diversity system. The design of such a quantizer can be reduced to the problem of assigning pair labels to points of a vector quantizer codebook. A general labeling procedure based on the structure of the lattice is presented, along with detailed results for the hexagonal lattice: algorithms, asymptotic performance, and numerical simulations. Asymptotically, when compared with the lattice Z, the resulting quantizer achieves the standard second-moment gain of the hexagonal lattice for the central distortion, and, surprisingly, achieves the two-dimensional sphere gain for the side distortion.
Citation:
Sergio D. Servetto, Vinay A. Vaishampayan, N.J.A. Sloane, "Multiple Description Lattice Vector Quantization," dcc, pp.13, Data Compression Conference (DCC '99), 1999 Usage of this product signifies your acceptance of the Terms of Use. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||