15  Face Detection

Note
Face Detection must be enabled in Smart Plan before configuring settings. Refer to 17.6.7 Configuring Smart Plan for further details.

15.1  Optimizing Face Detection Accuracy

The following are important camera installation notes to ensure accurate Face Detection. For full camera mounting instructions, see your camera’s documentation at .
  • The camera should be installed about 10 feet above the ground so as to ensure that the full proportion of the face is detected on the screen.
  • Angle the camera approximately 15° down from the level position.
  • To distinguish facial features the distance from the camera to the face should be approximately 15 feet.
High Accuracy Face Detection Vs. Low Accuracy Face Detection:
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Accuracy of Face Detection will be influenced by the distance and angle of the face from the camera. For optimal Face Detection the camera must be positioned head on to capture a person’s entire face looking straight ahead. Obscured and/or partially or fully covered faces (i.e. a person’s head tilted down to look at their phone) will not be accurately detected. During low light conditions the camera will impact color night vision by switching to black & white to ensure accuracy and improve detection range of Face Detection. If you cannot meet the above requirements for installation it may be best to use person detection instead.

15.2  Configuring Face Detection

Set preferences for face detection on each channel, and select channels you want to enable face detection on.
    To configure face detection:
  1. From the Live View display, right-click to open the Quick Menu, then click Main Menu.
  2. Click EVENTS, then click the Event Settings tab on the side panel. In the drop down click the Face Detection tab.
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  3. Select a camera to configure face detection for.
  4. Click to enable (icon ) / disable (icon ) face detection on the selected channel.
  5. Click to enable Face ROI to enhance images captured through face detection.
  6. Click Set next to Schedule to choose which days and times of the week to enable face detection:
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    • Click or click-and-drag along the each of the blue timelines to quickly add or remove time from each day’s schedule in 15–minute segments.
    • Click icon beside 2 or more days to link schedules (icon ). This allows you to quickly change multiple schedules at once.
    • To make fine adjustments to a schedule, click icon . This will allow you to set exact start and end times for a schedule.
  7. You can set various events to happen when the alarm is triggered including:
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    • Record Channel: Select the channels that will record when a face is detected on the selected channel. Set the length of recording following a video loss event in the Post_REC field.
    • PTZ Activation: Set connected PTZ cameras to start a tour, pattern, or go to a preset location.
    • Sequence: Sequence mode will begin. Select the numbered tiles next to this option to include the corresponding channels in the sequence.
    • Buzzer: Check to enable the system buzzer.
  8. Click Apply.
  9. (OPTIONAL) Click Copy to apply the settings for the current channel to one or more other channels.

15.3  Face Preview

Faces captured through face detection can be previewed in the live view display, including a time stamp and the channel the face was captured on.
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    To preview captured faces:
  1. From the Live View display, right-click to open the Quick Menu, then click Face Preview.
  2. Click enable for the face preview box to appear on the right side of the screen. Click disable to remove the face preview box.

15.4  Performing Smart Search for Face Detection

Search for face detection events on a specific channel or the entire system. You can also choose to back up events (USB flash drive required - not included).
    To perform smart search on face detection events:
  1. From the Live View display, right-click to open the Quick Menu, then click Main Menu.
  2. Click EVENTS. Click the Smart Search tab on the side panel, then in the drop down click the Face Detection tab.
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  3. Select the channel to search for events from, or select All
  4. Choose a start and end time for your search.
  5. Click Search. Events that match your search criteria will appear below. If you want to back up events, check the events you want to back up, then click Export.