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Performance of Predictive Coders Over Noisy Channels with Feedback

Overview Predictive coding methods such as DPCM or motion compensated hybrid video coders MPEG family are shown to adequately compress the input signal well with a reasonable complexity. The performance of these coders, however, degrades considerably when the transmission channel is not error-free. This is due to the error propagation at the decoder where a single error can have catastrophic consequences. A low-rate feedback channel is shown to improve the overall performance. In this report, we consider two such feedback-based methods and provide the analysis and investigate different trade-offs.

Further White Paper Details
Publisher	HP Labs	File Format	PDF, requires Acrobat Rdr 5
Date Published	August 2003	Downloads	10
Format	White Papers
Topics	MP3 / Digital Formats, Music Media, Transmission Interference

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