Max Distance of the Standard camera used with the AI solution
Maximum distance is 6 meters. The maximum distance for analysis can be set via Balena.
Lighting conditions
If the lighting conditions are poor, such as a very bright background, the analytics quality may suffer. The cameras we ship have with high Dynamic range (> 100 DB), and should handle different lighting conditions, however, we still recommend avoiding facing cameras to a bright exit as much as possible.
Positioning scenarios for different VI solution types
VI+CX Camera Positioning
CX + Visitor InSight - Digital Signage/DOOH (kiosk or other eye-level camera position)
For digital signage applications, the camera is usually placed on the top of a screen which is placed more or less at the eye level of consumers. This is also the ideal scenario for our face analysis software. There are two general scenarios; people walking towards a screen and people walking past a screen (see Screenshot 2).
(From link):
- If you are mounting the camera near a screen (CX + Visitor InSight) to get attention metrics, ideally, mount the cameras at the center of the screen (top or bottom). Ideally, we provide the most accurate attention metrics when faces are more visible to cameras at eye level. If the screens are behind a counter, such as menu boards at a quick service restaurant, ensure the staff doesn’t obstruct the view of the customers. Note that if the customers are looking at screens like menu boards which are often elevated above eye level, it is better to point the cameras slightly down so that customer faces are better visible for accurate analysis.
Screenshot 2:
In order to count the number of views and measure their attention time, a dynamic function detects the 'Viewing' angle based on the distance from the camera rather than using a hard-coded threshold for all detections.
See Screenshot 3 illustrates how different types of metrics are captured. OTS stands for “opportunity to see”.
Screenshot 3:
VI-Standalone Camera Positioning
Visitor InSight Standalone - Retail/QSR (downwards slope angle of a camera pitched from the ceiling)
From (link):
- If you are mounting the camera separately from a screen (Visitor InSight Standalone), customers may be viewing anywhere. Ceiling-mountable cameras looking straight down, often just see the top of the head, so demographic analysis is usually less accurate. If demographics are important, we recommend mounting cameras to minimize the vertical angle to see as much of the face. This often means either as close to eye level as possible on a wall, or further away and zoomed in like across the room looking at your entryway. As a general rule, we prefer vertical angles under 30º for the best demographic results, although body counts and dwell will continue to be accurate above.
See Screenshots 4 and 5 for how the camera can be angled when implementing the AI-Standalone solution.
Screenshot 4: minimum distance from camera for face detection (4’11” - 6’5”)
Screenshot 5: minimum distance for body detection (4’11” - 6’5”)
For the kiosk scenario or self standing screens where the camera is mounted close to head height, here is a range of angles depending on how high the camera is mounted. The distance from camera is 25”, close to an arm’s length:
