This repository provides a TensorFlow implementation of Faster R-CNN, a widely-used deep learning architecture for real-time object detection. It supports multiple backbone networks including VGG16, ResNet, and PVANet, and includes features such as Position Sensitive ROI Pooling, Hard Example Mining, and data augmentation. The project reorganizes the codebase into independent Python modules for easier understanding and modification, based on the original Faster R-CNN paper by Ren et al.