Security in medical image communication with arnold's cat map method and reversible watermarking

摘要

In Medical Industry, the patient's information plays a very vital role for telediagnosis and telesurgery. Medical image content authentication is very important, since medical image contents are more and more widely distributed. Reversible watermarking becomes a promising technique to embed the information into medical images. In this paper, we define the Region of Interest (ROI) in an image and trying to embed data in Region of Non Interest(RONI). When medical image shared through network, for the compression purpose we proposed the JPEG2000 algorithm and to improve the information security to maintain the secrecy, reliability and accessibility of the embedded data we have proposed Arnold's cat map method (Arnold's Transform). Patient information and disease information is embedded into DICOM images. Increase in authentication can be achieved when medical expert's access secured medical images from web servers using Kerberos technique.