Camera requirements for privacy masking

Make sure the following requirements are met for the correct operation of the privacy mask:

1. Camera requirements:
   1. Resolution is at least 320х240 pixels.
   2. Frame rate is at least 1 FPS.
   3. Camera shake shouldn't cause image shift greater than 1% of the frame size.
2. Lighting requirements:
   1. Moderate lighting. The quality of analytics performance can be lower in conditions of low lighting (night) or excessive lighting (overexposure).
   2. No sudden changes in lighting.
3. Scene and camera angle requirements:
   1. Moving objects must be visually separable from each other in the image.
   2. Background is mostly static and without sudden changes.
   3. Moving object should be minimally obscured by the stationary objects in the scene (columns, trees, etc.).
   4. Analytics may not work correctly on reflective surfaces and when there are sharp shadows from moving objects.
   5. Analytics may not work correctly on long, one-colored objects.
4. Object images requirements:
   1. The digital noise and compression-related artifacts are minimal.

   2. The width and height of the objects in the image must not be less than 1% of the frame size (if resolution is at least 1920x1080 pixels) or 15 pixels (at lower resolutions).

   3. The width and height of the objects in the image must not exceed 75% of the frame size.

   4. The movement speed of the objects in the image must not be less than 1 pixel per second.
   5. To detect an object, the duration of its visibility must be at least 8 frames.