A multicast "fingerprinting" solution based on image adaptive wavelet watermarking could prevent authorized recipients from releasing images to unauthorized parties.
A multicast "fingerprinting" solution based on image adaptive wavelet watermarking could prevent authorized recipients from releasing images to unauthorized parties.
Current digital image security and privacy protection schemes necessitated by the Health Insurance Portability and Accountability Act provide no mechanism for sending images to unauthorized parties. Researchers at the University of Washington address the issue (Comput Med Imaging Graph 2005;29(5):367-383).
A broadcast image would need to be decoded by watermark keyholders before the image could be used for diagnostic purposes. Assuming a unique watermark per user, watermarking can be used as fingerprinting.
During the process of decoding, two fingerprints that correspond to the original sender and the recipient who performs the decoding are imprinted onto the image.
Researchers considered system implementation issues and completed an analytical performance evaluation. Simulation results conducted on 31 images from five modalities confirmed that the fingerprinted images were of higher quality when compared with 10:1 JPEG compressed images. They withstood various image processing steps, including low-pass filter, high-pass filter, JPEG compression, cropping, and averaging attack, according to the researchers.
European Society of Breast Imaging Issues Updated Breast Cancer Screening Recommendations
April 24th 2024One of the recommendations from the European Society of Breast Imaging (EUSOBI) is annual breast MRI exams starting at 25 years of age for women deemed to be at high risk for breast cancer.
Study Reveals Benefits of Photon-Counting CT for Assessing Acute Pulmonary Embolism
April 23rd 2024In comparison to energy-integrating detector CT for the workup of suspected acute pulmonary embolism, the use of photon-counting detector CT reduced radiation dosing by 48 percent, according to newly published research.
Could a Newly FDA-Cleared C-Arm Device Bolster Efficiency for Interventional Radiologists?
April 22nd 2024In addition to advanced imaging quality and dose efficiency, the Philips Zenition 30 mobile C-arm device emphasizes personalized user profiles and automated customization to help reduce procedure time.