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研究生: 林信宇
Hsin-Yu Lin
論文名稱: 未知相機的特徵辨識及其竄改偵測的應用
Blind Camera Fingerprinting and Its Application in Tamper Detection
指導教授: 許秋婷
Chiou-Ting Hsu
口試委員:
學位類別: 碩士
Master
系所名稱: 電機資訊學院 - 資訊工程學系
Computer Science
論文出版年: 2008
畢業學年度: 96
語文別: 英文
論文頁數: 33
中文關鍵詞: 圖片竄改竄改偵測感測器雜訊
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  • 現在,數位相機越來越普及而來自這些相機的這些相片可以很容易的被各式各樣的影像編輯軟體所修改。在本篇論文中,我們提出一個基於感測器雜訊的未知相機特徵辨識方法,並且利用這些相機的特徵來偵測影像是否有被竄改過。
    我們也討論了利用雜訊分布可以做哪些竄改方法的偵測。雜訊分布是一個可靠的數位相機的特徵。因為來自同一台相機的影像有相同的雜訊分布,我們結合了兩種既存的相似度測量法來判斷不同的雜訊分布是否為同一台相機所產生。我們也利用這個相似度測量法從一些輸入影像中,找出可靠的雜訊分布,並且利用這些可靠的雜訊分布來偵測是否有被竄改過的影像存在。經過我們的實驗,我們可以偵測出雜訊分布有被改變的竄改圖片。


    1. Introduction 1 2. Related Work 4 2.1 Device Linking 4 2.2 Source Identification 5 3. Proposed Method 7 3.1 Noise Estimation 7 3.2 Similarity Measurement 8 3.3 Reference Pattern Estimation 11 3.4 Tamper Detection 12 3.5 Image Processing Detection 14 3.5.1 Filtering 14 3.5.2 Geometric Transformations 14 4. Experimental Results 26 4.1 Assumption and Setting 26 4.2 Blind Camera Fingerprinting 26 4.3 Tampered Image Detection 27 4.4 Discussion 27 5. Conclusion 31 6. References 32

    [1] Kenji Irie, Alan E. McKinnon, Keith Unsworth, and Ian M. Woodhead, “A Technique for Evaluation of CCD Video-Camera Noise,” in IEEE Transactions on Circuits and System for Video Technology, vol. 18, no. 2, pp. 280-284, Feb. 2008.
    [2] Goljan M., Mo Chen, and Fridrich J., “Identifying Common Source Digital Camera from Image Pairs,” in Proc. IEEE Int. Conf. Image Processing, Oct. 2007.
    [3] Greg J. Bloy, “Blind Camera Fingerprinting and Image Clustering,” in IEEE Transactions on Pattern Analysis and Machine Intelligence, vol. 30, no. 3, pp. 532-534, Mar. 2008.
    [4] Lukáš J., Fridrich J., and Goljan M., “Digital Camera Identification from Sensor Pattern Noise,” in IEEE Transactions on Information Forensics and Security, vol. 1, no. 2, pp. 205-214, June 2005.
    [5] Goljan M. and Fridrich J., “Camera Identification from Cropped and Scaled Images,” in Proc. SPIE, Electronic Imaging, Forensics, Security, Steganography, and Watermarking of Multimedia Contents, Jan. 2008.
    [6] M. K. Mihcak, I. Kozintsev, and K. Ramchandran, “Spatially Adaptive Statistical Modeling of Wavelet Image Coefficients and its Application to Denoising,” in Proc. IEEE Int. Conf. Acoustics, Speech, Signal Processing, Mar. 1999.
    [7] Lukáš J., Fridrich J., and Goljan M., “Detecting Digital Image Forgeries Using Sensor Pattern Noise,” in Proc. SPIE, Electronic Imaging, Jan. 2006.
    [8] J.J.K. Ó Ruanaidh and T. Pun, “Rotation, Scale and Translation Invariant Digital Image Watermarking,” in Proc. IEEE Int., Conf. on Image Processing, Oct.1997.
    [9] Mo Chen, Fridrich J., Goljan M., and Lukáš J., “Determining Image Origin and Integrity Using Sensor Noise,” in IEEE Transactions on Information Forensics and Security, vol. 3, no. 1, pp. 74-90, Mar. 2008.
    [10] Software available at http://www.hanovsolutions.com/?prod=PhotoWipe

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