Simultaneous storage of patient information with medical images in the frequency domain.
Digital watermarking is a technique of hiding specific identification data for copyright authentication. Most of the medical images are compressed by joint photographic experts group (JPEG) standard for storage. The watermarking is adapted here for interleaving patient information with medical images during JPEG compression, to reduce storage and transmission overheads. The text data is encrypted before interleaving with images in the frequency domain to ensure greater security. The graphical signals are also interleaved with the image. The result of this work is tabulated for a specific example and also compared with the spatial domain interleaving.
Acharya
Rajendra
R
Electronic and Computer Engineering Division, School of Engineering, Ngee Ann Polytechnic, 535 Clementi Road, Singapore 599489, Singapore. aru@np.edu.sg
Niranjan
U C
UC
Iyengar
S S
SS
Kannathal
N
N
Min
Lim Choo
LC
D000465:Algorithms; D000792:Angiography / Q000379:methods; D016494:Computer Security; D003952:Diagnostic Imaging; D004562:Electrocardiography / Q000379:methods; D006801:Humans; D007091:Image Processing, Computer-Assisted / Q000379:methods*; D016247:Information Storage and Retrieval / Q000379:methods; D008279:Magnetic Resonance Imaging / Q000379:methods*; D016347:Medical Records Systems, Computerized; D015233:Models, Statistical; D012984:Software; D013223:Statistics as Topic; D014965:X-Rays