Reference RCNN https://arxiv.org/abs/1311.2524 https://github.com/1297rohit/RCNN IoU: https://www.pyimagesearch.com/2016/11/07/intersection-over-union-iou-for-object-detection/ Selective Search http://vision.stanford.edu/teaching/cs231b_spring1415/slides/ssearch_schuyler.pdf https://ivi.fnwi.uva.nl/isis/publications/2013/UijlingsIJCV2013/UijlingsIJCV2013.pdf https://github.com/ChenjieXu/selective_search