Confidential storage and transmission of medical image data

@article{Norcen2003ConfidentialSA,
  title={Confidential storage and transmission of medical image data},
  author={Roland Norcen and M. Podesser and Andreas Pommer and H.-P. Schmidt and Andreas Uhl},
  journal={Computers in biology and medicine},
  year={2003},
  volume={33 3},
  pages={277-92}
}
We discuss computationally efficient techniques for confidential storage and transmission of medical image data. Two types of partial encryption techniques based on AES are proposed. The first encrypts a subset of bitplanes of plain image data whereas the second encrypts parts of the JPEG2000 bitstream. We find that encrypting between 20% and 50% of the visual data is sufficient to provide high confidentiality. 
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