Each of the video analytics models is individually configurable depending on the scene in the frame.

Face recognition model

Recommended parameters of the main video stream

• Codec: H.264;
• Protocol: TCP/RTSP;
• Frame rate: from 10 FPS to 20 FPS;
• Resolution: FullHD (1920x1280) and higher;
  
  • at 2MP resolution with 2.8mm lens up to 3-5 meters;
  • at 4 MP resolution with 2.8mm lens up to 5 meters.
• Image: preferably black and white (night mode);
  • IR illumination: Off (otherwise the face is illuminated);
• Bitrate: constant (CBR): from 2048 kbps to 6144 kbps.

Camera location

• The camera must be mounted stationary.
• Cameras should be placed at face level at an average height (1.75 - 1.85 m), as other placement may require fine-tuning of focus, making it difficult to pass through. In addition, mutual obscuration of faces should be minimized.
• In case of other camera location, the Passage intention algorithm may be hampered.
• Make sure that the tilt angle and deviation of the person's face from the frontal camera position are within 15° vertically and 20° horizontally.

Lighting in the recognition area

• The light in the recognition area should be soft and warm so that there are no shadows on the face. 
• Light sources should be located above the face recognition area.
• If this location is not possible, light sources directed at the face of the recognition object should be added.

Used algorithms

• The Passage intention algorithm is an algorithm that considers the size of a face, when it appears in the frame, and the progression of its approach.
• Anti-spoofing algorithm is an algorithm that allows real-time verification of a person's face against substitution of an actual face with a video or photo (under development).

License plate number recognition model

To ensure recognition of state license plate numbers, it is necessary to install and configure video cameras in a way that the following recommendations are met.

Recommended parameters of the main video stream

• Codec: H.264;
• Protocol: RTSP;
• Frame rate: from 10 FPS to 20 FPS;
• Resolution: FullHD (1920x1280) and higher;
  
  • at 2MP resolution with 2.8mm lens up to 3-5 meters;
  • at 4 MP resolution with 2.8mm lens up to 5 meters.
• Image:
  • IR illumination is off;
  • The HLC function is enabled.
• Bitrate: constant (CBR) or variable (VBR) from 2048 kbps to 6144 kbps.

Camera location

• The camera must be mounted stationary.
• Maximum horizontal angle: 30°.
• Maximum vertical angle: 45°.
• The most effective location of the camera is at a height of 1 to 1.5 m for a parking solution (entrance with barrier, gate). 
• When cameras are placed at the headlight level of the vehicle, the camera shall have HLC functionality.  

License plate number

• It is recommended to keep the license plate nimber in the frame free of light, uneven lighting, blurring, distortion, and dirt. 
• The minimum permissible contrast at uniform contamination of the registration mark shall not be lower than 20% (contrast discernibility of symbols relative to the background - 25 units on a 256-point scale).
• The maximum permissible irregular contamination shall not exceed 15% (ratio of the area of the contaminated part of the state registration plate to its total area).

Object detection model

Recommended parameters of the main video stream

• Codec: H.264;
• Protocol: RTSP;
• Frame rate: from 10 FPS to 15 FPS;
• Resolution: FullHD (1920x1280) and higher;;
  • at 2MP resolution with 2.8mm lens up to 3-5 meters;
  • at 4 MP resolution with 2.8mm lens up to 5 meters.
• Bitrate: constant (CBR) or variable (VBR) from 2048 kbps to 6144 kbps;

Camera location

The camera must be mounted stationary.