Subscription or Fee Access
A Robust Watermarking Algorithm for Medical Volume Data Based on Hermite Chaotic Neural Network
This paper presents a digital watermarking algorithm for medical volume data to protect the three-dimensional medical image information. Firstly, the watermark algorithm converts the medical image from two-dimensional into three-dimensional medical volume data. Then the reconstructed medical volume data is conducted by global three-dimensional discrete cosine transform. The three-dimensional discrete cosine transform with low frequency coefficients are selected as symbol of medical volume data to construct the zero watermarking. It not only has stronger resistance to conventional attacks, but also has strong robustness resistant to geometric attacks. Meanwhile, the algorithm uses chaotic neural network for scrambling and encryption, through which “one-time pad" encryption can be achieved. The watermark extraction key sequence is hard to be cracked. So the algorithm has a higher safety performance. The experiment results indicate that the algorithm has a better robustness and security, and plays a role in protecting three-dimensional medical images.
hermite chaotic neural network, watermarking algorithm, three-dimensional discrete cosine transform.
Disclaimer/Regarding indexing issue:
We have provided the online access of all issues and papers to the indexing agencies (as given on journal web site). It’s depend on indexing agencies when, how and what manner they can index or not. Hence, we like to inform that on the basis of earlier indexing, we can’t predict the today or future indexing policy of third party (i.e. indexing agencies) as they have right to discontinue any journal at any time without prior information to the journal. So, please neither sends any question nor expects any answer from us on the behalf of third party i.e. indexing agencies.Hence, we will not issue any certificate or letter for indexing issue. Our role is just to provide the online access to them. So we do properly this and one can visit indexing agencies website to get the authentic information. Also: DOI is paid service which provided by a third party. We never mentioned that we go for this for our any journal. However, journal have no objection if author go directly for this paid DOI service.