There are several things you should do to ensure you’re recording the objects you are interested in.
Avoid intersecting Tripwires or overlapping Ground Zones with objects that are prone to movements, such as trees, bushes, or other objects that move in the wind.
Only draw the rule where the feet or wheels of an object will cross.
Do not increase the size of the loiter zone or tripwire to cover the whole of the target.
Do not include furniture, walls, trees, or other structures in the rule.
After observing what the rule detects over a few days, consider adjusting the Minimum Object Detection Size slider.
Increasing the size will help to reduce false detection.
Decreasing the size helps detect smaller targets.