Model-based edge reconstruction for low bit-rate wavelet-compressed images

  title={Model-based edge reconstruction for low bit-rate wavelet-compressed images},
  author={Guoliang Fan and Wai-kuen Cham},
  journal={IEEE Trans. Circuits Syst. Video Techn.},
At low bit rates, wavelet-based image coding is superior to most traditional block-based methods in terms of visibility and severity of coding artifacts in coded images. However, the compressed images still suffer from obvious distortions around sharp edges, which are perceptually objectionable. In order to improve image quality for low bit-rate wavelet-based image coding, we proposed a model-based edge-reconstruction algorithm for recovering the lossy edges in coded images. Our approach… CONTINUE READING
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