Hong-Son Vu, and Ngoc-Thang Pham. “A RELIABLE FUSION METHOD USING BACKGROUND SUBTRACTION TECHNIQUE AND CASCADE-ADABOOST CLASSIFIER FOR REAL-TIME PEDESTRIAN DETECTION”. UTEHY Journal of Applied Science and Technology, Vol. 28, Jan. 2021, pp. 61-68, http://jst.utehy.edu.vn/index.php/jst/article/view/410.