Asymmetric Multiple Description Lattice

We consider the design of asymmetric multiple description lattice quantizers that cover the entire spectrum of the distortion proole, ranging from symmetric or balanced to successively reenable. We present a solution to a labeling problem, which is an important part of the construction, along with a general design procedure. The high rate asymptotic performance of the quantizer is also studied. We evaluate the rate-distortion performance of the quantizer and compare it to known information theoretic bounds. The high rate asymptotic analysis is compared to the performance of the quantizer. A multiple description source encoder generates a set of binary streams or descriptions of a source sequence, each with its own rate constraint. The transmission medium may deliver some or all of the descriptions to the decoder. The objective is to minimize the distortion between the source sequence and the decoded sequence when all the descriptions are available, while ensuring that the distortion which results when only a subset of the