@TechReport{Dartmouth:TR2001-413,
  author = {Senthil Periaswamy and Hany Farid},
  title = {{Differential Elastic Image Registration}},
  institution = {Dartmouth College, Computer Science},
  address = {Hanover, NH},
  number = {TR2001-413},
  year = {2001},
  month = {September},
  URL = {http://www.cs.dartmouth.edu/reports/TR2001-413.ps.Z},
  abstract = {
    We have applied techniques from differential motion
    estimation to the problem of automatic elastic registration of medical
    images. This method models the mapping between images as a locally
    affine but globally smooth warp. The mapping also explicitly accounts
    for variations in image intensities. This approach is simple and
    highly effective across a broad range of medical images. We show the
    efficacy of this approach on several synthetic and clinical images.
  }
}