Reversible Anonymization of DICOM Images using Cryptography and Digital Watermarking
Journal Title: International Journal of Advanced Computer Science & Applications - Year 2012, Vol 3, Issue 4
Abstract
Digital Imaging and Communications in Medicine (DICOM) is a standard for handling, storing, printing, and transmitting information in medical images. The DICOM file contains the image data and a number of attributes such as identified patient data (name, age, insurance ID card,…), and non-identified patient data (doctor’s interpretation, image type,…). Medical images serve not only for examination, but can also be used for research and education purposes. For research they are used to prevent illegal use of information; before authorizing researchers to use these images, the medical staff deletes all the data which would reveal the patient identity to prevent patient privacy. This manipulation is called anonymization. In this paper, we propose a reversible anonymization of DICOM images. Identifying patient data with image digest, computed by the well-known SHA-256 hash function, are encrypted using the proposed probabilistic public key crypto-system. After compressing the Least Significant Bit (LSB) bitplan of the image using Hofmann coding algorithm, the encrypted data is inserted into a liberated zone of the LSB bitplan of the image. The proposed method allows researchers to use anonymous DICOM images and keep to authorized staff -if necessary- the possibility to return to the original image with all related patient data.
Authors and Affiliations
Youssef ZAZ , Lhoussain ELFADIL
Keywords
Related Articles
- EP ID EP145602
- DOI -
- Views 83
- Downloads 0
Intelligent Model Conception Proposal for Adaptive Hypermedia Systems
The context of this article is to study and propose solutions for the major problems of adaptive hypermedia systems. In fact, the works and models proposed for these systems are made according to the tradition of studyin...
Design, Modeling and Energy Management of a PEM Fuel Cell / Supercapacitor Hybrid Vehicle
This work concerns the study and the modeling of hybrid Proton Exchange Membrane (PEM) Fuel Cell electric vehicle. In fact, the paper deals with the model description of the powertrain which includes two energy sources:...
Evaluating Web Accessibility Metrics for Jordanian Universities
University web portals are considered one of the main access gateways for universities. Typically, they have a large candidate audience among the current students, employees, and faculty members aside from previous and f...
Generating Relational Database using Ontology Review
A huge amount of data is being generated every day from different sources. Access to these data can be very valuable for decision-making. Nevertheless, the extraction of information of interest remains a major challenge...
Effective Listings of Function Stop words for Twitter
Many words in documents recur very frequently but are essentially meaningless as they are used to join words together in a sentence. It is commonly understood that stop words do not contribute to the context or content o...