MULTIPLE DESCRIPTION ENCODER AND DECODER FOR TRANSMITTING MULTIPLE DESCRIPTIONS

摘要

An apparatus and method for joint reconstruction of multiple data streams is provided. An MD encoder can include a plurality of sub-encoders for encoding an input signal into a plurality of unique descriptions based on linear transformations and quantization of the input signal. An MD decoder can decode a plurality of unique descriptions associated with at least one input signal by utilizing a plurality of sub-decoders. Each sub-decoder can decode the plurality of unique descriptions based on coding noise variance and a coding error correlation coefficient associated with the plurality of unique descriptions. The MD decoder can include a joint reconstruction component that reconstructs the at least one input signal based on, at least in part, extracting a unique coding characteristic associated with each description of the plurality of unique descriptions and estimating a weighting factor for each description of the plurality of unique descriptions.