An adaptive 3-D discrete cosine transform coder for medical image compression

@article{Tai2000AnA3,
  title={An adaptive 3-D discrete cosine transform coder for medical image compression},
  author={S. Tai and Yung-Gi Wu and Chang-Wei Lin},
  journal={IEEE Transactions on Information Technology in Biomedicine},
  year={2000},
  volume={4},
  pages={259-263}
}
A new three-dimensional (3-D) discrete cosine transform (DCT) coder for medical images is presented. In the proposed method, a segmentation technique based on the local energy magnitude is used to segment subblocks of the image into different energy levels. Then, those subblocks with the same energy level are gathered to form a 3-D cuboid. Finally, 3-D DCT is employed to compress the 3-D cuboid individually. Simulation results show that the reconstructed images achieve a bit rate lower than 0… Expand
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