I understand what others including your self are saying and i get it (thank you) - i have zone crossing already setup and works somewhat ok. Issue is in the evening when the sun is coming down, a person walking on the sidewalk (out of the zone) there shadow will cross the zone i have set in BI and produce an image for AI to see - now.. there would be kids on the road in the back if i remove the masking in AI on the left side and bluestack will see the kids as human and send me the alert (which would be false..) Seems like this is only good for less traffic areas such as the side of the house or a backyard..Several people have given you advice on this setup, and I'm not sure if you've tried the advice or not. Again, you could set up zones in BI so that only motion in the area of the porch triggers the AI. I'd probably use 2 zones and setup crossing so that people just walking past won't trigger. So, for example, the "A" zone would be the whole image and the "B" zone would be the area that's not masked in the image you shared. Setup BI to trigger the AI when there's motion from A>B.
Then basically remove the left half of your AI mask so that Bluestack gets the full person (I'm not sure if that's even necessary as it seems to be able to detect "partial" people in my experience if it can see legs. It's still going to see people in the left background, but they won't trigger the camera/alerts unless someone approaches.
If you can't get some combination of these to work then I don't think there's anything this tool (or users here) can help you with. Fundamentally, the camera angle you have set up makes this a difficult proposition.