Concealment of damaged block transform coded images using projections onto convex sets

@article{Sun1995ConcealmentOD,
  title={Concealment of damaged block transform coded images using projections onto convex sets},
  author={Huifang Sun and Wilson Kwok},
  journal={IEEE transactions on image processing : a publication of the IEEE Signal Processing Society},
  year={1995},
  volume={4 4},
  pages={470-7}
}
An algorithm for lost signal restoration in block-based still image and video sequence coding is presented. Problems arising from imperfect transmission of block-coded images result in lost blocks. The resulting image is flawed by the absence of square pixel regions that are notably perceived by human vision, even in real-time video sequences. Error concealment is aimed at masking the effect of missing blocks by use of temporal or spatial interpolation to create a subjectively acceptable… CONTINUE READING
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