B. Godana, G. Leus, and A. Barroso. Sensor Device Technologies and Applications (SENSORDEVICES), 2010 First International Conference on, page 44-51. (July 2010)
H. Ackermann, B. Scheuermann, T. Chin, and B. Rosenhahn. 10th International Conference on Energy Minimization Methods in Computer Vision and Pattern Recognition (EMMCVPR), (2015)accepted.