1. Laboratory of Electrical, Mechatronic Engineering and Signal Processing, University of Yaounde I, Yaoundé P.O. Box 8390, Cameroon
2. University Research Centre on Energy for Health, University of Yaounde I, Yaoundé P.O. Box 8390, Cameroon
3. Centre for Experimentation and Production, National Advanced School of Engineering of Yaounde, Yaoundé P.O. Box 8390, Cameroon
4. Higher Technical Teachers’ Training College, University of Ebolowa, Ebolowa P.O. Box 786, Cameroon
5. Research Unit of Automatic and Applied Computer Science, IUT Fotso Victor, University of Dschang, Bandjoun P.O. Box 96, Cameroon
6. Department of Medical Imaging and Radiotherapy, Faculty of Medecine and Biomedical Sciences of Yaounde, University of Yaounde I, Yaoundé P.O. Box 8390, Cameroon