There is a cat that wanders around my neighbourhood. I wanted to build something that would notify me whenever it came to my backyard. The post describes what I did
Reminds of this post of someone who added a camera to the little cat door because the cat kept bringing 'gifts' (mice) indoors. He used ML to detect if the cat brought a gift. In that case he temporarily locked it.
Not sure if it is the same project, but I remember something like that from a long time ago. The cat would walk through a backlit tunnel and project a black and white silhouette of its profile onto a low res camera.
They used a very simple neural network to do the detection. Several example pictures were included in the write up, showing the cat normally, one where it was holding a mouse, as well as a profile of a possum (IIRC).
Replicating those results has been on my to-do list for over a decade.
Nicely done, I like the straightforward dedicated nature of the project. Even years after the Raspberry Pi has been out I still enjoy reading how people use it. I suppose the cat factor does play a role in it though.
I am trying to build something similar with my raspberry pi - but with a temperature detector sensor. Btw well written, just how a tech article should be, no fluff and to the point!