Signal denoising on graphs via graph filtering

@article{Chen2014SignalDO,
  title={Signal denoising on graphs via graph filtering},
  author={Siheng Chen and Aliaksei Sandryhaila and Jos{\'e} M. F. Moura and Jelena Kovacevic},
  journal={2014 IEEE Global Conference on Signal and Information Processing (GlobalSIP)},
  year={2014},
  pages={872-876}
}
Signal recovery from noisy measurements is an important task that arises in many areas of signal processing. In this paper, we consider this problem for signals represented with graphs using a recently developed framework of discrete signal processing on graphs. We formulate graph signal denoising as an optimization problem and derive an exact closed-form solution expressed by an inverse graph filter, as well as an approximate iterative solution expressed by a standard graph filter. We evaluate… CONTINUE READING

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