[Config Support]: Configuration question

Describe the problem you are having

Hey!

After some tweaking related to me issue #4354, I found that it’s possible to add the same parameters in many places. Especially, what is the difference between placing like this:

cameras:
  camera_1:
  ....
    objects:
      track:
        - car
        - person
      filters:
        car:
          min_score: 0.5
          threshold: 0.5
          mask:
            - 0,0,1920,0,1920,703,306,540,146,719,0,707

instead of this:

cameras:
  camera_1:
  ....
    zones:
      parking_space:
  ....
        objects:
          - car
        filters:
          car:
            min_score: 0.5
            threshold: 0.5
            mask:
              - 0,0,1920,0,1920,703,306,540,146,719,0,707

According to the doc, it’s a zone level object filters but I’m not sure I understand. Does it mean that in the first case the whole image is scanned even with the mask and in the second only the part of the zone is scanned? Same for the threshold.

Thanks!

Version

0.11.1-2eada21

Frigate config file

N/A

Relevant log output

N/A

Frigate stats

N/A

Operating system

Debian

Install method

HassOS Addon

Coral version

USB

Any other information that may be helpful

No response

[NickM-27]

Going to go ahead and close this issue, feel free to create another issue if something else comes up

[NickM-27]

They’re slightly different so I’ll address both separately:

objects

The objects you define in

objects:
  track:
    - this
    - list

are what are tracked by the camera.

Zones are meant to limit the events to objects that are of interest. You can list tracked objects for a zone to limit which objects are considered apart of that zone. For example you may want to track person, dog, cat in your yard and then track car in your driveway. Or you may not want to know about people in the street but do want to know about vehicles in the street.

PLEASE NOTE: Any objects that are not in objects -> track will not be tracked. If you put car in the zone level tracking and it is not in the object -> track list then cars will not be tracked anywhere. In 0.12 this will result in a config error.

filters

You can set a global filter which will apply to all objects that are detected, but you can also apply it to just a zone. A practical example of this that I used to use is I wanted to be notified of car in my driveway. I also wanted to know if the UPS / Fedex truck drove by, but of course if I added a min_area filter globally then the normal car in my driveway would be ignored. So I simply have car tracked everywhere but then create a street zone with a min_area of 40000 so the car is only considered apart of the street zone if it is that big.