Tampering short help page

Tampering is a feature that enables you to detect when a camera is not recording what it is supposed to. For example when there is no light, the camera is obscured, there is an object occluding the view, the camera angle changed, no live data, etc...

Header

Header contains the title of the page and the "Refresh" button, which is located on the right side. The page is not reloaded automatically, so you need to click the button to see updated information.

Camera database

On the left side you can see a database of monitored cameras. Every record contains name of the camera, state, datetime of last check and source (location where it writes data). Cameras can have these states:

  1. UNKNOWN: We could not analyze the camera. This may mean an internal error.
  2. NO_BACKGROUND: Camera feeds data, but it has not been configured in the system. This state will automatically correct itself, as the camera will use latest frame as automatic background.
  3. NO_DATA: Camera is configured in the system, but it has no live data.
  4. STALE_DATA: Camera is configured, but the data is stale. This may mean old images, or the images are not changing frame to frame.
  5. TAMPERING: Camera is not recording what it is supposed to. This may mean occlusion, difficult lighting conditions, changed angle, etc...
  6. OK: Camera is recording what it is supposed to.
You can sort by clicking on any column name.
Clicking on a camera will open its detail in tab on the right side.

Tabs

We have three tabs on this page: detail, background settings and help.
In the detail tab, you can see the latest image from camera as well as history of images. You can add any of them as background to the camera by simply clicking "Add selected to backgrounds" button in the bottom right.
In the backgrounds settings tab, you can browse backgrounds for the camera, remove them or upload new ones by clicking the respective buttons on the bottom of the tab.