Vritti Lens Hardware & Mounting Guide
Vritti Lens converts off-the-shelf Android tablets into high-speed biometric face recognition attendance terminals.Recommended Tablet Specifications
To ensure sub-second face identification and optimal camera field-of-view, select devices meeting these hardware specifications:Wall Mounting & Physical Placement
Proper physical placement prevents glare, awkward user posture, and camera obstruction.Recommended Height
- Mount the tablet at a center height of 1.45 meters to 1.55 meters (4.75 to 5.1 feet) from the floor.
- This height comfortably accommodates standing adults ranging from 1.50m to 1.90m without requiring tilt adjustments.
Lighting Considerations
- Place the tablet in a well-lit area with even front illumination.
- Avoid direct backlighting: Do not position the camera facing direct sunlight, open windows, or strong overhead spotlights facing the lens.
- Ensure ambient light level is above 150 lux for accurate image capture.