Lossless ROI Watermarking of Medical Images

医学图像的无损 ROI 水印

• 批准号: 6789660
• 负责人: QIANG WU
• 金额: $ 10万
• 依托单位: ADVANCED DIGITAL IMAGING RESEARCH, LLC
• 依托单位国家: 美国
• 财政年份: 2004
• 资助国家: 美国
• 起止时间: 2004-07-01 至 2005-12-31
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/6789660
• 关键词: bioengineering /biomedical engineering; bioimaging /biomedical imaging; computer program /software; computer system design /evaluation; cytogenetics; data quality /integrity; digital imaging; human data; image processing; technology /technique development

DESCRIPTION (provided by applicant): The goal of this project is to develop innovative lossless regions-of-interest (ROI) watermarking techniques to make the usage, archiving, and communication of medical images much more secure and manageable. Currently available techniques only provide means of ubiquitous watermarking that are inapplicable to most medical images. The proposed technology offers an effective means of data authentication, security, and copyright protection by embedding imperceptible watermarks into the images without modifying the content of the ROI. These watermarks remain present after copying, internet transmission, or even some alteration, and can be retrieved when needed. Important information such as specimen identification, laboratory signature and specification can be encoded into the watermarks. This functionality will enable clinicians and researchers to effectively protect the authenticity and integrity of their digital image data. In Phase 1 we will study the feasibility of lossless ROI watermarking on simple modality medical images. We will develop a prototype system to implement the proposed watermarking approach. We will develop an image segmentation method that processes and keeps track of the partition and location of the image regions based on the ROI delineation. In conjunction with the region segmentation, we will implement both a spatial-domain and a wavelet-domain watermarking schemes with the improvement to enable selective watermarking into non-ROI parts of the images, and to test them using single-frame monochrome medical images. We will evaluate these schemes in terms of watermark (1) imperceptibility, (2) capacity, and (3) robustness. If the proposed technique proves to be viable, in Phase 2 the technology will be extended to and tested on complex modality medical images. When fully developed, we will patent the new technology and commercialize it through licensing agreements and partnerships with manufacturers of medical imaging systems and companies of general image processing and publishing software products.

描述（由申请人提供）：该项目的目的是开发创新的无损区域（ROI）水印技术，以使医疗图像的使用，存档和通信更加安全和可管理。当前可用的技术仅提供无处不在的水印手段，这些水印不适用于大多数医学图像。提出的技术通过将不可察觉的水印嵌入到图像中而无需修改ROI的内容，从而提供了有效的数据身份验证，安全性和版权保护的手段。这些水印在复制，互联网传输甚至进行一些更改后仍存在，并且可以在需要时检索。重要信息，例如标本识别，实验室签名和规格，可以编码到水印中。该功能将使临床医生和研究人员能够有效地保护其数字图像数据的真实性和完整性。 在第1阶段，我们将研究简单模态医学图像上无损耗的ROI水印的可行性。我们将开发一个原型系统来实施建议的水印方法。我们将开发一种图像分割方法，该方法根据ROI描述来处理并跟踪图像区域的分区和位置。结合区域分割，我们将同时实施空间域和小波域的水印方案，并改进，以使选择性水印能够在图像的非ROI部分中，并使用单帧单色单色医学图像进行测试。我们将根据水印（1）易用性，（2）和（3）鲁棒性评估这些方案。如果提出的技术被证明是可行的，则在第2阶段中，该技术将在复杂的模态医学图像上扩展到并测试。当充分开发时，我们将通过与医学成像系统的制造商以及一般图像处理和发布软件产品的公司的制造商合作，并通过许可协议和合作伙伴关系对新技术进行专利。