New Watermarking Scheme for Security and Transmission of Medical Images for PocketNeuro Project
Chokri Chemak, Jean Christophe Lapayre, Mohamed Salim Bouhlel · Brno University of Technology Digital Library (Brno University of Technology) · 2007
Abstract. We describe a new Watermarking system of medical information security and terminal mobile phone adaptation for PocketNeuro project. The later term refers to a Project created for the service of neurological diseases. It consists of transmitting information about patients « Desk of Patients » to a doctor’s mobile phone when he is visiting or examining his patient. This system is capable of embedding medical information inside diagnostic images for security purposes. Our system applies JPEG Compression to Watermarked images to adapt them to the doctor’s mobile phone. Experiments performed on a database of 30-256 × 256 pixel-sized neuronal images show that our Watermarking scheme for image security is robust against JPEG Compression.For the purpose of increasing the image Watermarking robustness against attacks for an image transmission and to perform a large data payload, we encode with Turbo- Code image-embedded bits information. Fidelity is improved by incorporation of the Relative Peak Signal-to- Noise Ratio (RPSNR) as a perceptual metric to measure image degradation. PocketNeuro project needs to provide security of medical information and adaptation of neuronal images to the doctor’s mobile phone. We propose to use watermarking as solution to preserve the security of medical images for PocketNeuro project, for the reason that image watermarking allows doctors or personnel to hide invisible and robust medical information about a patient inside images with a secret key [3].