Edge computing on the Raspberry PI has been a bit of ups and downs, especially with everyone gearing for AI in everything. The Raspberry Pi, on its own, isn't really capable of any reliable AI applications. Typical object detection on the Raspberry Pi would get you something around 1 - 2 fps depending on the nature of your model and this because all those processing is done on the CPU.
To address this poor performance of AI applications on the Raspberry Pi, AI Accelerators came to the rescue. The Intel Neural Compute Stick 2 is one such accelerator capable