SSD: Single Shot MultiBox Detector

Wei Liu, Dragomir Anguelov, Dumitru Erhan, Christian Szegedy, Scott Reed, Cheng-Yang Fu, Alexander C. Berg. ECCV 2016.

Models

Using Dataset

Implementation Accuracy Weights Memory Conv Ops etc Link
Keras
TensorFlow
PyTorch

Tip & Trick

name for What reference
Multi-scale featuremap allow prediction at multiple scales -
Default boxes allow separately detect objects with different ratio 'Anchor' in Faster R-CNN
jaccard overlay to get best box a.k.a. IOU
Smooth L1 loss loss function for bbox regression image, paper
mAP eval metric explanation
hard negative mining to sample from a lot of negative boxes paper
a trous algorithm filling the 'holes' while transforming FC weights into CONV weight wikipedia
NMS(Nom-Max Suppression to leave only one bbox (with highest confidence level) during inference time coursera - deep learning

Error of paper