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Mouth
Exposes details and key points of the mouth of a detected Face object.
Key points are returned in the detected face's local coordinate system. Use Face.cameraTransform.applyToPoint() to convert the point to the camera's coordinate system.
Example
//============================================================================
// Bind the position of a plane to the position of the user's mouth
//
// Project setup:
// - One plane: plane0
//
// Required project capabilities:
// - Face Tracking (auto added on FaceTracking module import)
//
//============================================================================
// Load in the required modules
const Scene = require('Scene');
const FaceTracking = require('FaceTracking');
(async function () { // Enables async/await in JS [part 1]
// Locate the plane in the scene and the first detected face
const [plane, face] = await Promise.all([
Scene.root.findFirst('plane0'),
FaceTracking.face(0)
]);
// Get the mouth object from the detected face
const mouth = face.mouth;
// Bind the position of the plane to the position of the center of the mouth
plane.transform.x = face.cameraTransform.applyToPoint(mouth.center).x;
plane.transform.y = face.cameraTransform.applyToPoint(mouth.center).y;
})(); // Enables async/await in JS [part 2]Properties
| Property | Description |
|---|---|
center | (get) center: PointSignal The location of the center of the mouth, as a PointSignal. |
leftCorner | (get) leftCorner: PointSignal The location of the left corner of the mouth, as a PointSignal. |
lowerLipCenter | (get) lowerLipCenter: PointSignal The location of the center of the lower lip, as a PointSignal. |
lowerLipCurvature | (get) lowerLipCurvature: ScalarSignal The curvature of the lower lip relative to the lip center, as a ScalarSignal.A value of 0 represents no curvature on the lower lip. A mouth angled higher than the lip center results in a positive curvature value, while a mouth angled lower than the lip center results in a negative curvature value. |
openness | (get) openness: ScalarSignal The openness of the mouth, as a ScalarSignal.The higher the value returned, the more wide open the detected mouth is. The minimum value is 0, which indicates a closed mouth. |
rightCorner | (get) rightCorner: PointSignal The location of the right corner of the mouth, as a PointSignal. |
upperLipCenter | (get) upperLipCenter: PointSignal The location of the center of the upper lip, as a PointSignal. |
upperLipCurvature | (get) upperLipCurvature: ScalarSignal The curvature of the upper lip relative to the lip center, as a ScalarSignal.A value of 0 represents no curvature on the upper lip. A mouth angled higher than the lip center results in a positive curvature value, while a mouth angled lower than the lip center results in a negative curvature value. |
Methods
This module exposes no methods.