Height of Line Crossing Detection

[Silas]

Not sure how to solve this, but I am working on line detection, so I draw the line on screen from the bottom of a wall to the house wall with the intent of trigger when one of my cats walks through.

BUT and I got to this after testing

The cats do not trigger as it appears that the line 'thinks' it is about 3 feet in the air !!

HikVision DS-7604 & DS-2CD2142FWD-IS

 

[tigerwillow1]

You'd get better help if you say which camera and NVR you're using. In case it's Dahua, I've found that setting up line crossing is hit-and-miss on the NVR, and works a whole lot better setting it up directly on the camera. With newer camera and NVR firmware it's getting better, but it's still not totally reliable through the NVR.