Adaptive high-capacity reversible data hiding algorithm for medical images

doi:10.3724/SP.J.1087.2012.02779

Journal of Computer Applications ›› 2012, Vol. 32 ›› Issue (10): 2779-2782.DOI: 10.3724/SP.J.1087.2012.02779

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Adaptive high-capacity reversible data hiding algorithm for medical images

HUANG Bin¹,SHI Liang²,DENG Xiaohong³,CHEN Zhi-gang³

1. Electronic Information Engineering Department, Putian University, Putian Fujian 351100, China
2. School of Software, Xiamen University, Xiamen Fujian 361005, China
3. School of Information Science and Engineering, Central South University, Changsha Hunan 410083, China

Received:2012-04-25 Revised:2012-05-21 Online:2012-10-23 Published:2012-10-01
Contact: DENG Xiaohong

自适应高容量医学图像可逆数据隐藏算法

黄斌¹,史亮²,邓小鸿³,陈志刚³

1. 莆田学院电子信息工程学系,福建莆田 351100
2. 厦门大学软件学院,福建厦门 361005
3. 中南大学信息科学与工程学院,长沙 410083

通讯作者: 邓小鸿
作者简介:黄斌(1981-),男,福建莆田人,讲师,硕士,CCF会员,主要研究方向：网络与信息安全；史亮(1973-),男,福建厦门人,副教授,博士,主要研究方向：网络与信息安全；邓小鸿(1982-),男,湖北天门人,讲师,博士研究生,CCF会员,主要研究方向：数字水印；陈志刚(1964-),男,湖南益阳人,教授,博士,CCF高级会员,主要研究方向：信息安全。
基金资助:
国家自然科学基金;国家重点实验室2011年度开放基金资助项目;福建星火科技项目

Abstract

Abstract: A new reversible data hiding algorithm for medical images was proposed. The hidden information was embedded into Region Of Interest (ROI) and non-interest respectively. In ROI, an adaptive integer transform scheme was employed to enhance the embedding capacity and control distortions. And in Region of Non-Interest (RONI), the classical Least Significant Bit (LSB) method was used to keep the marked image’s quality. The experimental results show that, compared with previous works, the performance of the proposed method has been significantly improved in terms of capacity and image quality. The proposed method’s embedding capacity is between 1.2bpp and 1.7bpp, while the Peak Signal-to-Noise Ratio (PSNR) can maintain the 43dB or so. Moreover, the proposed method with high run efficiency can be applied into the practical hospital information system.

Key words: reversible data hiding, medical image, integer transform, Least Significant Bit (LSB), Region of Interest (ROI)

摘要： 提出了一种新的医学图像无损数据隐藏算法,根据医学图像特点,将隐秘信息分别嵌入在感兴趣区域和非感兴趣区域中。在非感兴趣区域中,采用自适应整数变换方法增大嵌入容量并控制失真；在感兴趣区域,采用最低有效位替换方法控制水印图像质量。实验结果表明,算法的嵌入容量在1.2bpp到1.7bpp之间,而峰值信噪比保持在43dB左右。与现有相关算法相比,嵌入容量具有明显优势并保持较高的图像质量。另外,本方法计算复杂度低,能方便应用于实际的医学信息系统中。

关键词: 可逆数据隐藏, 医学图像, 整数变换, 最低有效位, 感兴趣区域

HUANG Bin SHI Liang DENG Xiaohong CHEN Zhi-gang. Adaptive high-capacity reversible data hiding algorithm for medical images[J]. Journal of Computer Applications, 2012, 32(10): 2779-2782.

黄斌史亮邓小鸿陈志刚. 自适应高容量医学图像可逆数据隐藏算法[J]. 计算机应用, 2012, 32(10): 2779-2782.

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Adaptive high-capacity reversible data hiding algorithm for medical images

自适应高容量医学图像可逆数据隐藏算法

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