• W. Sabrina Lin, Steven K. Tjoa, H. Vicky Zhao, and K. J. Ray Liu
• IEEE Trans. Information Forensics and Security, September 2009
• Download: Paper, BibTeX

  @ARTICLE{lin2009tifs,
    title = "Digital Image Source Coder Forensics via Intrinsic Fingerprints",
    author = "W. Sabrina Lin and Steven K. Tjoa and H. Vicky Zhao and K. J. Ray Liu",
    journal = "IEEE Trans. Information Forensics and Security",
    year = "2009",
    month = sep,
    volume = "4",
    number = "3",
    pages = "460--475"
  };

Multimedia forensic methods allow us to verify and maintain the integrity of our multimedia data. For example, we can embed a watermark into a digital image to bind the identity of its owner to the image itself. However, traditional forensic approaches such as watermarking are not applicable in many real-world scenarios, for example, when we do not have access to the original data.

In this paper, we investigate the use of intrinsic fingerprints — subsets of data which are, or have become, an intrinsic part of the data in question — for formulating a forensic methodology that can identify the compression history of a digital image. By examining the intrinsic fingerprints in an image, we can tell what compression method (e.g., JPEG, etc.) was used in order to determine the origin of the image and thereby assess its authenticity.

• Steven Tjoa, W. Sabrina Lin, and K. J. Ray Liu
• IEEE Int. Conf. Image Processing, September 2007
• Download: Paper, Presentation, BibTeX

  @INPROCEEDINGS{tjoa2007icip,
    title = "Transform Coder Classification for Digital Image Forensics",
    author = "Steven Tjoa and W. Sabrina Lin and K. J. Ray Liu",
    booktitle = "Proc. IEEE Int. Conf. on Image Processing",
    address = "San Antonio, TX",
    year = "2007",
    month = sep,
    volume = "6",
    pages = {VI-105--VI-108},
  };

Summary: Coming soon.

• W. Sabrina Lin, Steven Tjoa, H. Vicky Zhao, and K. J. Ray Liu
• IEEE Int. Conf. Multimedia and Expo, July 2007
• Download: Paper, BibTeX

  @INPROCEEDINGS{lin2007icme,
    title = "Image Source Coding Forensics via Intrinsic Fingerprints",
    author = "W. Sabrina Lin and Steven Tjoa and H. Vicky Zhao and K. J. Ray Liu",
    booktitle = "Proc. IEEE Int. Conf. Multimedia and Expo",
    address = "Beijing, China",
    year = "2007",
    month = jul,
    pages = "1127--1130",
  };

Summary: Coming soon.

• Steven Tjoa, W. Sabrina Lin, H. Vicky Zhao, and K. J. Ray Liu
• IEEE Int. Conf. Acoustics, Speech, and Signal Processing, April 2007
• Download: Paper, Presentation, BibTeX

  @INPROCEEDINGS{tjoa2007icassp,
    title = "Block Size Forensic Analysis in Digital Images",
    author = "Steven Tjoa and W. Sabrina Lin and H. Vicky Zhao and K. J. Ray Liu",
    booktitle = "Proc. IEEE Int. Conf. Acoustics, Speech, and Signal Processing",
    year = "2007",
    address = "Honolulu, HI",
    month = apr,
    volume = "1",
    pages = {I-633--I-636}
  };

Summary: Coming soon.