Ready.

Start the camera and I will hold you to the posture you calibrate. One line, one colour, no dashboard.

Nothing has been watched yet.

Takes three seconds to calibrate.

Camera

Draw the facial landmarks over the picture

This switch takes effect as soon as it is pressed. The pomodoro timer is set up in the Pomodoro settings panel, and the notifications in the Notification settings panel.

Slouch detection

How far you may move away from the calibrated reference posture before the posture counts as a slouch. A smaller number holds you closer to the reference posture.

Forward and back tolerance

How much larger or smaller your face may look than at the reference posture, which is what leaning forward or back changes.

% of face size

Sideways tolerance

How far your face may move to the left or to the right of the reference posture, across the camera picture.

% of width

Timing

Slouch time before the alert

How long a slouch must last without a break before the alert is raised. A shorter time reminds you sooner and more often.

seconds

Calibration countdown

How many counts you are given to settle into the posture that becomes the reference. One count lasts about one second.

counts

Posture readings

How often the posture is read while the monitor runs. A higher rate answers faster and asks more of the processor.

/ second

The two tolerances and the slouch time act on the very next reading. A new calibration countdown applies the next time you calibrate.