You have good STARLIGHT / STARVIS cams from 2016/2017.. they are mostly 2 Mpx...
they have IVS which can filter people/vehicles, but it's not at level of today technology...
If you configure properly IVS on all cams and NVR (even -4ks2), you should have thumbnails and short videos of all humans / vehicles in AI Search->IVS menu on NVR...
Result should look similar to my screen shoots from NVR, simply without attributes how humans/vehicles look and ability to search using those attributes (this require more modern Video Meta Data function)..
And with some risk of more false positives than on today cams..
If you wanted to upgrade, there is 5442-S3 (54IR) and 5459-PRO (54PRO)...
First available here:
Search: 10 results found for "54ir"
-ZE models have varifocal (optical zoom 0.5-2.0x)...
there are also telephoto version -Z4E (2.0 - 6.0x optical zoom), which works very well for outside / parking lots...
54PRO should be available in two weeks...