For semantic contours with poselets please cite:

@InProceedings{HariharanSemanticContoursICCV11,
  author       = "Bharath Hariharan and Pablo Arbelaez and Lubomir Bourdev and Subhransu Maji and Jitendra Malik",
  title        = "Semantic Contours from Inverse Detectors",
  booktitle    = "International Conference on Computer Vision (ICCV)",
  year         = "2011",
  url          = "http://www.eecs.berkeley.edu/~lbourdev/poselets"
}