@inproceedings{ Ren:2004:LSF,
  author = "Liu Ren and Gregory Shakhnarovich and Jessica K. Hodgins and Hanspeter Pfister and Paul Viola",
  title = "Learning Silhouette Features for Control of Human Motion",
  booktitle = "ACM Transactions on Graphics",
  year = "2005",
  month = oct,
  page =  "1303-1331",
  vol = "24",
  no = "4",
}