Using OpenCV DNN with a lot of models from Tensorflow, SSD Mobilenet, Mask R-CNN, Caffe, Dlib faces recognization, SVM.
All detectors run on parallel threads and detect objects at the same time:
SSD mobilenet: Detects objects like persons, cars, animals...
Tensorflow: Detects faces.
Dlib: Recognizes person's faces.
SVM: Detects the traffic signs.
It runs very smooth on Laptop Acer Nitro 5 (Core i7 9750H, GPU card NVIDIA Geforce GTX 1650).