Security protection of DICOM medical images using dual-layer reversible watermarking with tamper detection capability.
Teleradiology applications and universal availability of patient records using web-based technology are rapidly gaining importance. Consequently, digital medical image security has become an important issue when images and their pertinent patient information are transmitted across public networks, such as the Internet. Health mandates such as the Health Insurance Portability and Accountability Act require healthcare providers to adhere to security measures in order to protect sensitive patient information. This paper presents a fully reversible, dual-layer watermarking scheme with tamper detection capability for medical images. The scheme utilizes concepts of public-key cryptography and reversible data-hiding technique. The scheme was tested using medical images in DICOM format. The results show that the scheme is able to ensure image authenticity and integrity, and to locate tampered regions in the images.
Tan
Chun Kiat
CK
School of Electrical and Electronic Engineering, Nanyang Technological University, Singapore, Singapore.
Ng
Jason Changwei
JC
Xu
Xiaotian
X
Poh
Chueh Loo
CL
Guan
Yong Liang
YL
Sheah
Kenneth
K
D016494:Computer Security; D003952:Diagnostic Imaging / Q000379:methods / Q000592:standards*; D006801:Humans; D007091:Image Processing, Computer-Assisted; D020407:Internet; D016347:Medical Records Systems, Computerized; D011873:Radiology Information Systems / Q000592:standards*; D019112:Teleradiology / Q000379:methods / Q000592:standards*; D014481:United States