RefineDet-tensorflow The pre-trained vgg_16.ckpt could be downloaded from http://download.tensorflow.org/models/vgg_16_2016_08_28.tar.gz RefineDet320 RefineDet512 Train your own data The training step is same as the step in readme.md of https://github.com/Stick-To/Object-Detection-API-Tensorflow Experimental Environment python3.7 tensorflow1.13