基于预测错误的可逆数据隐藏方案在加密图像中使用块标记和封面图像预处理
Shaiju Panchikkil1, V M Manikandan1
1SRM University-AP, Andhra Pradesh, India.
概括
这项研究引入了一种用于加密医疗图像的新型可逆数据隐藏 (RDH) 方案. 该方法确保高质量的图像恢复,这对于准确的远程医疗诊断至关重要.
科学领域:
- 数字通信 数字通信
- 医学成像技术 医学成像技术
- 信息安全信息安全.
背景情况:
- 数字化正在迅速改变沟通和医疗保健的提供.
- 远程医疗和电子医疗服务出现了显著的增长,特别是在COVID-19大流行期间.
- 医疗图像的安全和准确传输对于可靠的诊断至关重要.
研究的目的:
- 为加密医疗图像提出一个新的可逆数据隐藏 (RDH) 方案.
- 为了实现高嵌入能力,同时确保恢复的医疗图像的完整性和质量.
- 提高数字医疗保健系统中医疗图像传输的安全性和效率.
主要方法:
- 为加密图像开发了一个基于错误的最重要的比特 (MSB) 预测RDH方案.
- 用双模式 (向右和向下) 的蛇扫描方法来选择最佳的嵌入速率.
- 多个MSB用于嵌入加密的个人健康记录 (PHR) 数据,利用预测错误.
主要成果:
- 拟议的方案实现了高质量的图像恢复,峰值信号噪声比 (PSNR) 和结构相似度指数 (SSIM) 为1.
- 展示了高嵌入速率,在16位DICOM图像中超过每像素3位 (bpp),在自然图像中超过1bpp.
- 实验结果显示,与现有的最先进的RDH方法相比,性能优越.
结论:
- 开发的MSB预测基于错误的RDH方案为安全和高容量的医疗图像传输提供了有前途的解决方案.
- 该方法确保了医疗图像的完整性,这对于远程医疗的准确远程诊断至关重要.
- 这项研究有助于在不断变化的数字医疗环境中推进安全数据隐藏技术.
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