An SVD based zero watermarking scheme for authentication of medical images for tele-medicine applications
Anushikha Singh, Namrata Raghuvanshi, Malay Kishore Dutta, Radim Bürget, Jan Mašek · 2016
The proposed work presents a zero watermarking method for to solve the issue of medical image security for telemedicine, tele-radiology & tele-opthalmology applications. This method provides medical image security for tele-medicine application without tempering the medical image and no loss of clinical information. Local features in the Singular value decomposition (SVD) domain are used to generate a digital binary code (Master Share) for each fundus image. This master share is strategically combined with encrypted patient ID resulting into a secret share. At the diagnosis centre the patient ID can be accurately recovered by the authorized person only on access of the generated Secret Share. The proposed zero watermarking method is tested on the publically available DRIVE dataset of fundus image and results achieved are encouraging in the direction of medical image identification and verification. The proposed work can be used in telemedicine applications where perfect and loss-less identification is required for medical images as this has direct relevance to human life.