A complexity reduction technique for image vector quantization

  title={A complexity reduction technique for image vector quantization},
  author={Chok-Ki Chan and Lai-Man Po},
  journal={IEEE transactions on image processing : a publication of the IEEE Signal Processing Society},
  volume={1 3},
A technique for reducing the complexity of spatial-domain image vector quantization (VQ) is proposed. The conventional spatial domain distortion measure is replaced by a transform domain subspace distortion measure. Due to the energy compaction properties of image transforms, the dimensionality of the subspace distortion measure can be reduced drastically without significantly affecting the performance of the new quantizer. A modified LBG algorithm incorporating the new distortion measure is… CONTINUE READING