@article{PAA2013d,
  author    = {Silvio Filipe and Lu{\'i}s A. Alexandre},
  title     = {Algorithms for invariant long-wave infrared face 
segmentation: evaluation and comparison},
  issn      = {1433-7541},
  journal   = {Pattern Analysis and Applications},
  doi       = {10.1007/s10044-013-0354-6},
  url       = {http://dx.doi.org/10.1007/s10044-013-0354-6},
  publisher = {Springer London},
  keywords  = {Face segmentation; Thermal infrared; Human face 
segmentation; Image segmentation; Face recognition; Principal component 
analysis},
  pages     = {1--15},
  year      = {2013}
}