It might be easier to cheat and put a bluetooth or similar beacon onto your cat to suppress the water spray than try and distinguish your cat from others?
One of the goals is to create a safe place for my cat, on the porch or something. And still be able to fend off neighbor cats. She is getting old and has had fights on the porch which makes her scared to go out.
So I guess it depends on how easy it would be to limit the scope/direct the receiver to only activate when she is on the stairs which is probably the optimal target range for the porch (and not activate when she is lying just beside the receiver).
Thanks so much everyone for the answers! Can't believe I forgot about the squirrel presentation. My cat is all black and I'm not sure how I'd go about distinguishing it. A really colorful necklace perhaps, but it would have to be quite ungraceful to not be covered in fur when watched from the front/back (a second camera 90 degrees from the first could perhaps help).
In the QA in the squirrel presentation someone also mentioned OpenTLD, which seems to be superseded by CMT ( https://www.gnebehay.com/cmt/ ). Worth a look.
So I guess it depends on how easy it would be to limit the scope/direct the receiver to only activate when she is on the stairs which is probably the optimal target range for the porch (and not activate when she is lying just beside the receiver).
Thanks so much everyone for the answers! Can't believe I forgot about the squirrel presentation. My cat is all black and I'm not sure how I'd go about distinguishing it. A really colorful necklace perhaps, but it would have to be quite ungraceful to not be covered in fur when watched from the front/back (a second camera 90 degrees from the first could perhaps help).
In the QA in the squirrel presentation someone also mentioned OpenTLD, which seems to be superseded by CMT ( https://www.gnebehay.com/cmt/ ). Worth a look.
I hope I can find the time to experiment on this.