Knowledge Base

Analysis Options

Batch Analysis

Skip Already Analyzed Frames

When you have selected this option, video fragments that were already analyzed will be skipped in batch analysis.

IMPORTANT Make sure you deselect this option when you carry out a camera analysis while simultaneously recording video and want to re-analyze these videos offline. Otherwise FaceReader will not analyze the frames that were already analyzed in the camera analysis.

Camera Analysis

Maximum Camera Analysis Duration

Enter the maximum duration for analyses carried out with a live camera image.

• Default: 1 hour.
• Maximum: 2 hours.

Optional Classifications

Action Units

With this option selected, FaceReader classifies Action Units. This option is only available when you have the Action Unit Module.

See The Action Unit Module

Consumption Behavior

With this option selected, FaceReader analyzes whether the test participant is taking a bite or a sip ('Intake event') or is Chewing.

See The Consumption Behavior Module

Contempt

Select this option to classify Contempt, which is an expression in which one corner of the lips is tightened and slightly raised.

Treat Contempt As An Emotional State

Select this option to add Contempt to the expression states in the State log and Timeline. This makes contempt mutually exclusive with the other expressions.

Gaze Tracking

With this option selected, FaceReader classifies whether the test participant looks left, forward or right, while taking the head orientation into account. The output is one of nine gaze directions: Left, Left-Up, Left-Down, Right, Right-Up, Right-Down, Up, Down and Forward. In addition, the gaze angle can be logged and visualized (Horizontal gaze angle and Vertical gaze angle).

See Show Global Gaze Direction in FaceReader's Output

Vital Signs

With this option selected, FaceReader estimates the participant's current heart rate and heart rate variability by means of Photoplethysmography and respiratory (breathing) rate. This option is only available if your license includes the Vital Signs Module.

See The Vital Signs Module

Voice Analysis

Select this option to analyze vocal characteristics and determine whether there is happiness, sadness or anger audible in the voice or whether it is neutral.

Source: FaceReader 10 Reference Manual (Help), Noldus Information Technology