A new PDE-based approach for singularity-preserving regularization: application to degraded characters restoration

@article{Drira2011ANP,
  title={A new PDE-based approach for singularity-preserving regularization: application to degraded characters restoration},
  author={Fadoua Drira and Frank Lebourgeois and Hubert Emptoz},
  journal={International Journal on Document Analysis and Recognition (IJDAR)},
  year={2011},
  volume={15},
  pages={183-212}
}
The massive digitization of heritage documents has raised new prospects for research like degraded document image restoration. Degradations harm the legibility of the digitized documents and limit their processing. As a solution, we propose to tackle the problem of degraded text characters with PDE (partial differential equation)-based approaches. Existing PDE approaches do not preserve singularities and edge continuities while smoothing. Hence, we propose a new anisotropic diffusion by adding… CONTINUE READING
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