1. Google API for detecting facial landmarks.
https://developers.google.com/android/reference/com/google/android/gms/vision/face/Landmark
2. Banerjee, R.: Video compression technique using facial landmarks on mobile devices. Master’s thesis, IIIT Delhi (2016).
https://repository.iiitd.edu.in/jspui/handle/123456789/435
3. Bichsel, M.: Automatic interpolation and recognition of face images by morphing. In: Proceedings of the Second International Conference on Automatic Face and Gesture Recognition, pp. 128–135 (1996)
4. Cootes, T.: Talking face video database. Images.
https://www-prima.inrialpes.fr/FGnet/data/01-TalkingFace/talking_face.html
5. Ekman, P., Friesen, W.V.: Measuring facial movement. Environ. Psychol. Nonverbal Behav. 1(1), 56–75 (1976)