Hussein Abdullah, S. Rodriguez, J.G. Quijano, C. Bensalah, M. Abderrahim. Human Face and Hand Detection for Human-Robot Interaction using RGB-D Kinect Sensor. 5th International Conference on Cognitive Systems (CogSys 2012). , ISBN: , pages: 0 - 0, . 2012-02-21, Vienna, Austria. 2012.