Giakoumaki A, Pavlopoulos S, Koutsouris D
Biomedical Engineering Laboratory, School of Electrical and Computer Engineering, National Technical University of Athens, Greece.
Conf Proc IEEE Eng Med Biol Soc. 2004;2004:3241-4. doi: 10.1109/IEMBS.2004.1403912.
Digital watermarking is a recently emerged research area, which has the potential of providing alternative/complementary solutions for a number of issues relating to medical data management and distribution. The present paper aims to reveal the perspectives of digital watermarking in health information systems, and proposes a wavelet-based multiple watermarking scheme that addresses the issues of medical data protection, archiving, and retrieval, as well as of origin and data authentication. The scheme applies multiple watermarking in medical images, and embeds in them the physician's digital signature, patient's personal and examination data, keywords for image retrieval, and a reference watermark for the purpose of data integrity control. The experimental results demonstrate the efficiency and transparency of the watermarking scheme, which conforms to the strict limitations that apply to regions of diagnostic significance.
数字水印是一个最近出现的研究领域，它有潜力为与医学数据管理和分发相关的许多问题提供替代/补充解决方案。本文旨在揭示数字水印在健康信息系统中的前景，并提出一种基于小波的多重水印方案，该方案解决了医学数据保护、存档和检索以及来源和数据认证等问题。该方案在医学图像中应用多重水印，并在其中嵌入医生的数字签名、患者的个人和检查数据、用于图像检索的关键词以及用于数据完整性控制的参考水印。实验结果证明了该水印方案的效率和透明度，该方案符合适用于具有诊断意义区域的严格限制。
