I think we are going too much off topic. But also one sentence from me...
Dahua IVS is woring nearly perfect. I have outside watching my caravan less than 10 false positive events a week. That's much better than every pixel based analysis. What does it much better than every other solution I know (I can compare to Activity sensor from mobotix):
- extremely easy to configure, just a few easy steps, nearly no fine tuning nesesary!
- works perfectly on rain and snow, as long as the lens is clear, mens no drops on it
- no throttle in picture frame rate like Mobotix
- needs a moving objekt for several seconds
Cons:
- recordings will stop if the person is inside the area, and doesn't move.
- if trees and other biggesr moving objects are inside the zone it could cause events, on windy conditions, but much less than Mobotix does
- deep sun and shadows can cause events when it's windy.
I know that a software base solution is maybe possible to do more intelligent anlysis, but it's expensive and need a powerful processor especially the more cams you use and the higher the resolution is. Next thing is the codec.
I never used
blue iris, but zone alarm for several years, but why should I pay for a software bases system, when dahuas ivs is mostly much enough...