Only released in EOL distros:
rail_face_detection: rail_face_detection_msgs | rail_face_detector
Package Summary
 Released 
 Documented 
Face Detection methods used in the RAIL Lab
- Maintainer status: developed
 - Maintainer: Siddhartha Banerjee <banerjs.sid AT gmail DOT com>, Andrew Silva <andrew.silva AT gatech DOT edu>
 - Author: Siddhartha Banerjee <banerjs.sid AT gmail DOT com>, Andrew Silva <andrew.silva AT gatech DOT edu>
 - License: MIT
 - Bug / feature tracker: https://github.com/GT-RAIL/rail_face_detection/issues
 - Source: git https://github.com/GT-RAIL/rail_face_detection.git (branch: indigo-devel)