Quantized Frame Expansions as Source-Channel Codes for Erasure Channels

Quantized frame expansions are proposed as a method for generalized multiple description coding, where each quantized coe cient is a description. Whereas previous investigations have revealed the robustness of frame expansions to additive noise and quantization, this represents a new application of frame expansions. The performance of a system based on quantized frame expansions is compared to that of a system with a conventional block channel code. The new system performs well when the number of lost descriptions (erasures on an erasure channel) is hard to predict.

• Type: Conference
• Year: 1999
• Where: DCC
• Authors: Vivek K. Goyal, Jelena Kovacevic, Martin Vetterli
• Keywords: Computer Graphics, Conventional Block Channel, DCC 1999, Frame Expansions, Multiple Description Coding