Responsive image
博碩士論文 etd-0724101-085321 詳細資訊
Title page for etd-0724101-085321
論文名稱
Title
影像與音訊之數位浮水印嵌入方法
Digital Watermarking Methods for Image and Audio Signals
系所名稱
Department
畢業學年期
Year, semester
語文別
Language
學位類別
Degree
頁數
Number of pages
66
研究生
Author
指導教授
Advisor
召集委員
Convenor
口試委員
Advisory Committee
口試日期
Date of Exam
2001-07-10
繳交日期
Date of Submission
2001-07-24
關鍵字
Keywords
像素權重表、基準點
APSNR, Pixel Weight Table, Reference Pixel
統計
Statistics
本論文已被瀏覽 5685 次,被下載 27
The thesis/dissertation has been browsed 5685 times, has been downloaded 27 times.
中文摘要
數位影音多媒體產品,可以透過加密,使用數位簽章,或加入浮水印等方法來防止不法盜取行為。其中數位浮水印是近年來發展的新技術,加入浮水印的目的,是希望如同以類似註冊商標的方式,在原作品中加上類似戳印的標記,當出現著作權爭議時,可以藉此商標來判斷是否為產品的合法擁有者。本論文分別提出影像與音訊的數位浮水印架構,而且都使用像素權重表技術來嵌入浮水印。經實驗數據證明本論文所提的方法皆具有強韌性與隱密性。另一方面,本論文也提出一個評估音訊訊號的失真程度的量化方程式,APSNR。這對於做音訊訊號研究的先進無疑是個節省成本與增加準確度的好方法。
Abstract
Encryption, digital signature and digital watermark are three popular methods to prevent a wide variety of multimedia products from illegal copy or subterfuge attacks. In particular, digital watermarking recently draws a lot of attention since it hides desirable information in transmitted audio, image and video data files without affecting much the data quality. The thesis proposes two watermarking methods for audio and image data. And both watermarking methods embed watermark signals in the spatial/time domain using a so-call Pixel Weight Table. The experiment results shows that the two methods have good performance. In addition, I propose a guantitive measuring method, called APSNR, to characterize the audio perceptual transparency.
目次 Table of Contents
目錄 1
Chapter 1 簡介 3
PART 1 Digital Image Watermark 4
Chapter2 相關研究 5
2.1 安全需求 5
2.2 崁入方法 7
2.3 浮水印技術回顧 9
2.3.1 Spatial Domain 9
2.3.2 Frequency Domain 12
2.4 影像處理 15
2.4.1一般影像處理 15
2.4.2 幾何處理 19
2.4.3 惡意攻擊 20
Chapter 3架構與演算法 22
3.1 像素權重表 22
3.2 基準點 25
3.3 崁入方法 26
3.4 萃取方法 31
Chapter 4 實驗數據 32
PART 2 Digital Audio Watermark 35
Chapter 5相關研究 36
5.1 聲音基本特性 36
5.2數位音樂的取樣 37
5.3 聲音壓縮 38
5.3.1 知覺編碼(Perceptual Coding) 39
5.3.2 動態位元配置(Dynamic Bit Allocation) 41
5.3.3視窗長度切換(Window Switch) 41
5.3.4頻域編碼(Frequency-domain Coding) 41
5.4 MPEG AUDIO 43
5.4.1 MPEG-1 Audio Layer I 與Layer II 43
5.4.2 MPEG-1 Audio Layer III 45
5.4.3 MPEG-2 45


Chapter 6聲音浮水印 47
6.1 安全需求 47
6.2 崁入架構 48
6.3 浮水印技術回顧 49
Chapter 7 APSNR 53
7.1 演算法與流程圖 53
7.2 APSNR實驗數據 55
Chapter 8架構與演算法 56
8.1 嵌入方法 56
Chapter 9實驗數據 59
Chapter 10 結論 65
Reference 66

參考文獻 References
[1] I. J. COX, J. Kilian, T. Leighton and T. Shamoon, ”Secure Spread Spectrum Watermarking for Multimedia”, IEEE Trans. On Image Processing, Vol. 6, No12, pp.1673-1687, December, 1997.
[2] Mitchell D. Swanson, Mei Kobayashi, and Ahmed H. Tewfik, “Multimedia Data-Embedding and Watermarking Technologies”, Processdings of IEEE, Vol. 86, No.6, pp.1064-1087, Jun., 1998.
[3] Nikolaidis and Pitas, “Robust image watermarking in the spatial domain”, Signal processing, 66, pp385-403, 1998.
[4] Chiou-Ting Hsu and Ja-Ling Wu, “Hidden Digital Watermark in Image”, Image Processing, IEEE Transactions on Volume: 8 1, pp 58 –68, Jan. 1999.
[5] Weili Tang and Yoshinao AOKI, “A DCT-based Coding of Images in Watermarking”, Information, Communications and Signal Processing, 1997. ICICS., Proceedings of 1997 International Conference on Volume: 1 , pp 510 -512, 1997.
[6] M. Wu, and B. Liu, “Watermarking for image authentication”, Proceedings of the IEEE International Conference on Image Processing, vol. 2, pp. 437-441, 1998.
[7] S. Craver, and N. Memon, and B. L. Yeo, and M. M. Yeung, “Resolving rightful ownerships with invisible watermarking techniques: limitations, attacks, and implications”, IEEE journal on selected areas in communications, vol. 16, no. 4, pp. 573-586, May. 1998.
[8] S. Craver, and N. Memon, and B. L. Yeo, and M. M. Yeung, “Resolving rightful ownerships with invisible watermarking techniques: limitations, attacks, and implications”, IEEE journal on selected areas in communications, vol. 16, no. 4, pp. 573-586, May. 1998.
[9] D. C. Wu, and W. H. Tsai, “An efficient method for imperceptive data embedding in images”, Proceedings of the IEEE International Conference on Image Processing, pp. 166-173, 1999.
[10] D. Flanagan, Speech analysis, Springer-Verlag, 1972
[11] L. Boney, A.H. Tewfik and K.N. Hanmdy, “Digital watermarks for audio signals,” Processdings of the Third IEEE International Conference on Multimedia Computing and Systems, pp. 473~480, 1996.
[12] Ye Wang, “A new watermarking method of digital audio content for copyright protection,” Proceedings of ICSP’98 Fourth International Conference on Signal Processing, Vol.2, pp. 1420~1423, 1998.
[13] D. Gruhl, A. Lu and W. Bender, “Echo hiding,” Lecture Note in Computer Science, Information Hiding, Vol. 1174, pp. 295~315, Springer, 1996.
[14] Kirby, D. G. & Watanabe, K., “ Report on the formal subjective listening tests of MPEG-2 NBC multichannel audio coding,” ISO/IECJCT1/SC29/WG11/N1419 . November 1996.
電子全文 Fulltext
本電子全文僅授權使用者為學術研究之目的,進行個人非營利性質之檢索、閱讀、列印。請遵守中華民國著作權法之相關規定,切勿任意重製、散佈、改作、轉貼、播送,以免觸法。
論文使用權限 Thesis access permission:校內一年後公開,校外永不公開 campus withheld
開放時間 Available:
校內 Campus: 已公開 available
校外 Off-campus:永不公開 not available

您的 IP(校外) 位址是 54.198.157.15
論文開放下載的時間是 校外不公開

Your IP address is 54.198.157.15
This thesis will be available to you on Indicate off-campus access is not available.

紙本論文 Printed copies
紙本論文的公開資訊在102學年度以後相對較為完整。如果需要查詢101學年度以前的紙本論文公開資訊,請聯繫圖資處紙本論文服務櫃台。如有不便之處敬請見諒。
開放時間 available 已公開 available

QR Code