Nested quantization index modulation for reversible watermarking and its application to healthcare information management systems

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题名:	Nested quantization index modulation for reversible watermarking and its application to healthcare information management systems
作者:	陳竹一;Ko, Lu-Ting;Chen, Jwu-E.;Shieh, Yaw-Shih;Hsin, Hsi-Chin;Sung, Tze-Yun
贡献者:	資訊電機學院電機工程學系
关键词:	Algorithms;Computer Security;Humans;Image Interpretation, Computer-Assisted - methods;Information Management - methods;Magnetic Resonance Imaging - methods;Medical Informatics - methods;Radiography - methods;Tomography, X-Ray Computed - methods;Ultrasonography - methods
日期:	2012-01-13
上传时间:	2026-04-23 14:27:40 (UTC+8)
出版者:	Hindawi Publishing Corporation;Cairo, Egypt: Hindawi Puplishing Corporation
摘要:	摘要： Digital watermarking has attracted lots of researches to healthcare information management systems for access control, patients' data protection, and information retrieval. The well-known quantization index modulation-(QIM-) based watermarking has its limitations as the host image will be destroyed; however, the recovery of medical images is essential to avoid misdiagnosis. In this paper, we propose the nested QIM-based watermarking, which is preferable to the QIM-based watermarking for the medical image applications. As the host image can be exactly reconstructed by the nested QIM-based watermarking. The capacity of the embedded watermark can be increased by taking advantage of the proposed nest structure. The algorithm and mathematical model of the nested QIM-based watermarking including forward and inverse model is presented. Due to algorithms and architectures of forward and inverse nested QIM, the concurrent programs and special processors for the nested QIM-based watermarking are easily implemented. 其他題名： Comput Math Methods Med 出版者： Cairo, Egypt: Hindawi Puplishing Corporation 出版日期： 2012-01-01 出處： Computational and mathematical methods in medicine, 2012-01, Vol.2012 (2012), p.1-8 資源來源： EBSCOhost Academic Search Premier 版權： Copyright © 2012 Lu-Ting Ko et al. 版權： Copyright © 2012 Lu-Ting Ko et al. 2012 識別號： ISSN: 1748-670X 識別號： ISSN: 1748-6718 識別號： EISSN: 1748-6718 識別號： DOI: 10.1155/2012/839161 識別號： PMID: 22194776
显示于类别:	[電機工程學系] 期刊論文

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