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Systems and methods for metadata embedding in streaming medical data

  • US 8,229,191 B2
  • Filed: 03/05/2008
  • Issued: 07/24/2012
  • Est. Priority Date: 03/05/2008
  • Status: Active Grant
First Claim
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1. A method for embedding metadata within medical data, the method comprising:

  • embedding within a given medical data signal comprising a one dimensional time-series sequence, a robust watermark comprising an encrypted version of metadata related to that given medical data signal by;

    obtaining an orthogonal transformation of the one dimensional time-series sequence, the orthogonal transformation comprising a plurality of descriptors, each associated with a frequency of the one dimensional time-series sequence;

    selecting frequencies within the one dimensional time series sequence to be modified;

    identifying magnitude modifications for each one of the selected frequencies based on the robust watermark to be embedded; and

    applying the identified magnitude modifications to the descriptors associated with the selected frequencies; and

    embedding a fragile watermark into that given medical data signal.

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