A region-based lossless watermarking scheme for enhancing security of medical data.
This paper presents a lossless watermarking scheme in the sense that the original image can be exactly recovered from the watermarked one, with the purpose of verifying the integrity and authenticity of medical images. In addition, the scheme has the capability of not introducing any embedding-induc...
| Publicado en: | Journal of Digital Imaging Vol. 22; no. 1; pp. 53 - 65 |
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| Autores principales: | , |
| Formato: | diagnostic images equations & formulas research tables/charts Journal Article |
| Publicado: |
Springer Nature
Feb2009
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=105643773&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 105643773 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 08971889 DOQ jtl: Journal of Digital Imaging issn: 08971889 maglogo: N pubinfo: dt: Feb2009 vid: 22 iid: 1 pid: 237 pub: Springer Nature place: New York, New York artinfo: ui: 105643773 2010184915 10.1007/s10278-007-9043-6 NLM17619929 105643773 ppf: 53 ppct: 12 formats: fmt: @attributes: type: P tig: atl: A region-based lossless watermarking scheme for enhancing security of medical data. aug: au: Guo X Zhuang T affil: Department of Biomedical Engineering, Shanghai Jiaotong University, Shanghai, 200240, China sug: subj: Data Security Methods Diagnostic Imaging DICOM Picture Archiving and Communication Systems Dermatoglyphics Digital Compression Evaluation Research Quality Assurance Systems Design Human ab: This paper presents a lossless watermarking scheme in the sense that the original image can be exactly recovered from the watermarked one, with the purpose of verifying the integrity and authenticity of medical images. In addition, the scheme has the capability of not introducing any embedding-induced distortion in the region of interest (ROI) of a medical image. Difference expansion of adjacent pixel values is employed to embed several bits. A region of embedding, which is represented by a polygon, is chosen intentionally to prevent introducing embedding distortion in the ROI. Only the vertex information of a polygon is transmitted to the decoder for reconstructing the embedding region, which improves the embedding capacity considerably. The digital signature of the whole image is embedded for verifying the integrity of the image. An identifier presented in electronic patient record (EPR) is embedded for verifying the authenticity by simultaneously processing the watermarked image and the EPR. Combining with fingerprint system, patient's fingerprint information is embedded into several image slices and then extracted for verifying the authenticity. pubtype: Academic Journal doctype: diagnostic images equations & formulas research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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