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| DC 欄位 | 值 | 語言 |
|---|---|---|
| dc.contributor.advisor | 吳家麟(Jia-Ling Wu) | |
| dc.contributor.author | Ching-Yu Yang | en |
| dc.contributor.author | 楊謦羽 | zh_TW |
| dc.date.accessioned | 2022-11-23T09:29:38Z | - |
| dc.date.available | 2024-06-30 | |
| dc.date.available | 2022-11-23T09:29:38Z | - |
| dc.date.copyright | 2021-07-08 | |
| dc.date.issued | 2021 | |
| dc.date.submitted | 2021-06-30 | |
| dc.identifier.citation | [1] Barton, J. M. (1997). 'Method and apparatus for embedding authentication information within digital data.' U.S. Patent 5646997. [2] W. Bender, D. Gruhl, N. Morimoto, and A. Lu, “Techniques for data hiding,” IBM Syst. J., vol. 35, no. 3–4, pp. 313–336, 1996. [3] Wang, R.-Z., Lin, C.-F., Lin, J.-C. (2001). Image hiding by optimal LSB substitution and genetic algorithm. Pattern Recognition, 34(3), 671–683. [4] Chan, C.-K., Cheng, L. M. (2004). Hiding data in images by simple LSB substitution. Pattern Recognition, 37(3), 469–474. [5] Celik, M. U., Sharma, G., Tekalp, A. M., Saber, E. (2005). Lossless generalized-LSB data embedding. IEEE Transactions on Image Processing, 14(2), 253–266. [6] Jun Tian. (2003). Reversible data embedding using a difference expansion. IEEE Transactions on Circuits and Systems for Video Technology, 13(8), 890–896. [7] Z. Ni, Y.Q. Shi, N. Ansari and W. Su, “Reversible Data Hiding”, IEEE Transactions on Circuits and Systems for Video Technology, vol. 16, no. 3, Mar. 2006 , pp. 354-362. [8] Der-Chyuan Lou, Chen-Hao Hu and Chung-Ching Chiu “Steganalysis of Histogram Modification Reversible Data Hiding Scheme by Histogram Feature Coding” International Journal of Innovative computing Information and Control, Vol 7, No. 11, Nov 2011. [9] C.W. Lee and W.H. Tsai, “A lossless large-volume data hiding method based on histogram shifting using an optimal hierarchical block division scheme,” J. Inform. Sci. Eng., vol. 27, no. 4, pp. 1265–1282, 2011. [10] C.-H. Yang and M.-H. Tsai “Improving histogram-based reversible data hiding by interleaving predictions” IET Image Processing , Dec 2009. [11] Hong, W., Chen, T.-S. (2010). A local variance-controlled reversible data hiding method using prediction and histogram-shifting. Journal of Systems and Software, 83(12), 2653–2663. [12] Tsai, P., Hu, Y.-C., Yeh, H.-L. (2009). Reversible image hiding scheme using predictive coding and histogram shifting. Signal Processing, 89(6), 1129–1143. [13] Chen, X., Sun, X., Sun, H., Zhou, Z., Zhang, J. (2013). Reversible watermarking method based on asymmetric-histogram shifting of prediction errors. Journal of Systems and Software, 86(10), 2620–2626. [14] S. Kim, X. Qu, V. Sachnev, H.J. Kim, Skewed histogram shifting for reversible data hiding using a pair of extreme predictions, IEEE Trans. Circuits Syst. Video Technol., online published. [15] I. J. Cox, M. L. Miller, J. A. Bloom, Digital Watermarking, Morgan Kaufmann Publishers, San Francisco, CA, 2001. | |
| dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/80165 | - |
| dc.description.abstract | 近年來，病人隱私權保護日益受到重視。病人在治療過程中，多處可能涉及個人私密，例如醫院對病人所拍攝的醫療影像以及相關病情或健康資訊依法不得無故對外洩漏。 可逆式隱寫術 (reversible data hiding) 是一種能將元資料 (meta data) 嵌入影像，並且可無失真回完全復原始影像的資料隱藏技術。本研究旨在提出一個適合於醫學影像的完全可逆並具有高資訊容量的隱寫術 (Steganography)演算法。 醫學影像的 Region of Interest (ROI)為整張影像中具有重要醫學資訊的部分，一般而言醫學影像需要高解析度以分析影像中細微的變化。本研究利用分布圖位移 (histogram Shift) 及預測差異 (prediction error) 技術，再輔以醫學影像中的非 ROI 區域所具像素平滑之特性，設計出所謂“兩位元嵌入”之演算法，並將嵌入資料藏於影像中的非 ROI 區域。此算法的最大優點是“完全可逆”且擁有“高資訊容納量”並同時達到將醫學影像中 ROI 因資料嵌入所造成之失真度降至最低的目的。 為了驗證本研究提出方法的有效性，我們測試了三種 DICOM 格式的醫學影像，分別為 X 光攝影像 (X-ray)、電腦斷層攝影像(CT)以及核磁共振影像 (MRI)。結果顯示，隱藏資訊大多會被嵌入於醫學影像中的非 ROI 區域，且此方法較其他類似方法具有更高的資訊容納量。 | zh_TW |
| dc.description.provenance | Made available in DSpace on 2022-11-23T09:29:38Z (GMT). No. of bitstreams: 1 U0001-2806202115362000.pdf: 19532129 bytes, checksum: 56ba1d7278b22eaa6203b7755492d2db (MD5) Previous issue date: 2021 | en |
| dc.description.tableofcontents | 口試委員審定書 i 中文摘要 iii ABSTRACT iv CONTENTS v LIST OF FIGURES vii LIST OF TABLES viii Chapter 1 Introduction 1 1.1 Motivation 1 1.2 Basic characteristic of data hiding 4 1.3 Evaluation metric of proposed scheme 5 1.4 Contribution 6 1.5 Thesis Organization 7 Chapter 2 Related Work 9 2.1 Steganography and Digital Watermarking 9 2.2 Approaches of Reversible Data Hiding 11 2.2.1 LSB substitution 11 2.2.2 Difference expansion 12 2.2.3 Histogram shifting 13 Chapter 3 Proposed Method 16 3.1 Prediction Error Histogram 16 3.2 Embedding 18 3.3 Extraction and Recovery 20 3.4 Local complexity function 21 3.5 Encoder and Decoder 22 3.5.1 Side information 22 3.5.2 Encoder 24 3.5.3 Decoder 25 Chapter 4 Experiments 27 4.1 Databases 27 4.1.1 Breast-MRI-NACT-Pilot database 27 4.1.2 ACRIN-DSC-MR-Brain database 28 4.1.3 NIH Database 28 4.1.4 Lung-PET-CT-Dx Database 28 4.1.5 Prostate-MRI Database 28 4.1.6 Other grayscale standard images 28 4.2 Evaluation metrics of proposed scheme 30 4.3 Experimental Result 30 Chapter 5 Conclusions 41 REFERENCE 42 | |
| dc.language.iso | zh-TW | |
| dc.subject | 病人隱私權 | zh_TW |
| dc.subject | 醫學影像 | zh_TW |
| dc.subject | 分佈圖位移 | zh_TW |
| dc.subject | 可逆式隱寫術 | zh_TW |
| dc.subject | 隱寫術 | zh_TW |
| dc.subject | ROI | zh_TW |
| dc.subject | 預測差異 | zh_TW |
| dc.subject | Histogram Shifting | en |
| dc.subject | ROI | en |
| dc.subject | Prediction Error | en |
| dc.subject | Medical Image | en |
| dc.subject | Patient’s Privacy | en |
| dc.subject | Data Hiding | en |
| dc.subject | Reversible Data Hiding | en |
| dc.title | 基於直方圖預測誤差的兩位嵌入可逆數據隱藏法及其於醫學圖像平滑區域的應用 | zh_TW |
| dc.title | Two-bit embedding Histogram-Prediction-Error based Reversible Data Hiding for Medical images with Smooth Area | en |
| dc.date.schoolyear | 109-2 | |
| dc.description.degree | 碩士 | |
| dc.contributor.oralexamcommittee | 陳俊良(Hsin-Tsai Liu),周承復(Chih-Yang Tseng),陳駿丞,張嘉淵 | |
| dc.subject.keyword | 隱寫術,可逆式隱寫術,分佈圖位移,預測差異,醫學影像,ROI,病人隱私權, | zh_TW |
| dc.subject.keyword | Data Hiding,Reversible Data Hiding,Histogram Shifting,Prediction Error,Medical Image,ROI,Patient’s Privacy, | en |
| dc.relation.page | 43 | |
| dc.identifier.doi | 10.6342/NTU202101171 | |
| dc.rights.note | 同意授權(全球公開) | |
| dc.date.accepted | 2021-06-30 | |
| dc.contributor.author-college | 電機資訊學院 | zh_TW |
| dc.contributor.author-dept | 資訊工程學研究所 | zh_TW |
| dc.date.embargo-lift | 2024-06-30 | - |
| 顯示於系所單位： | 資訊工程學系 | |
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