Abstract: The compositing of two or more people into a single image is a common form of manipulation. We describe how such composites can be detected by estimating a camera's intrinsic parameters from the image of a person's eyes. Differences in these parameters across the image are used as evidence of tampering.

  publisher    = {to appear in LNCS},
  url          = {http://www.mit.edu/~kimo/images/research/iwdw07.pdf},
  booktitle    = {6th International Workshop on Digital Watermarking, Guangzhou, China},
  author       = {Micah K. Johnson and Hany Farid},
  year         = {2007},
  title        = {Detecting photographic composites of people},