I have been trying to implement and read about weapon detection (knife in my case).
First question, is it a classification problem, or an object detection problem? I do not want bounding boxes around the knife and only need whether a knife is present in the image or not.
I tried to do this as a classification problem, using resnet34 and the results were not good. I guess that could be an issue with my dataset too. I tried to generate the dataset myself by holding a knife at different angles.
I wanted to see this as an object detection problem. I tried to read about it and found out that the usual approaches of doing object detection are:
- Fast R-CNN
- Faster R-CNN
I wanted to know if there is any working notebook with fastai v2, so that I can quickly run and learn by looking at the code. I would then be able to benchmark that with the resnet34 model.