Face Recognition settings

Overview

Setting Description

Analysis Resolution

Set the resolution for the camera on which the Face Recognition video analytic is active.

Analysis FPS

Set the frames per second for the camera on which the Face Recognition video analytic is active.

Face Confidence Threshold

Set how confident the Face Recognition video analytic must be that objects are faces before it tracks objects.

Max Turn

Set the horizontal angle (in degrees) from center where the Face Recognition video analytic does not track objects. The recommended value is 45 degrees or less. The maximum value is 70 degrees.

Max Tilt

Set the vertical angle (in degrees) from center where the Face Recognition video analytic does not track objects. The recommended value is 20 degrees or less. The maximum value is 45 degrees.

Spoof Attack Detection

Select to enable spoofing attack detection.

This setting is disabled by default.

Spoof Attack Threshold

Set how confident the video analytic must be that a face is spoofed to trigger a rule.

This setting becomes visible when you select Spoof Attack Detection.

The value range is 0 to 100. The default value is 99.

Spoof Attack Timeout (seconds)

Set how long the video analytic waits before resetting the spoof attack status.

This setting becomes visible when you select Spoof Attack Detection.

The range for this setting is -1 (no timeout) to 100. The default value is -1 (no timeout).

Number of Frames to Stabilize Detection

Set the number of frames for which the video analytic must be confident of a spoofed face to trigger a rule.

This setting becomes visible when you select Spoof Attack Detection.

The range for this setting is 1 to 100. The default value is 10.

Percent of frame height from top ignored for face searching

Define the area at the top of the image that the video analytic ignores as a percentage of the height of the sample image.

Percent of frame width from left ignored for face searching

Define the area at the left side of the image that the video analytic ignores as a percentage of the width of the sample image.

Percent of frame height used for face searching

Define the height of the area in which the video analytic attempts to detect faces as a percentage of the height of the sample image. This percentage is applied after the ignored percentage.

Percent of frame width used for face searching

Define the width of the area in which the video analytic attempts to detect faces as a percentage of the width of the sample image. This percentage is applied after the ignored percentage.

Minimum percentage of frame height for detected faces

Define the minimum size of a face that the video analytic should detect as a percentage of the sample image.

Maximum percent of frame height for detected faces

Define the maximum size of a face that the video analytic should detect as a percentage of the sample image.

Processing mask

Setting Description

Drawing Mode

Select whether the paintbrush marks areas in the processing mask image to include (Analyze) or exclude (Ignore).

Size

Select the size of the paintbrush that you use in the processing mask image.