Identification (biology)

Sociology

Social science

Computer animation

Biology

Facial motion capture

Human–computer interaction

Computer graphics (images)

Computer facial animation

Cognitive psychology

Artificial intelligence

Psychology

Illusion

Avatar

Face (sociological concept)

Facial recognition system

Computer science

Animation

Feature extraction

Botany

Computer vision

Face detection

Morphing

IEEE Transactions on Visualization and Computer Graphics

Through avatar embodiment in Virtual Reality (VR) we can achieve the illusion that an avatar is substituting our body: the avatar moves as we move and we see it from a first person perspective. However, self-identification, the process of identifying a representation as being oneself, poses new challenges because a key determinant is that we see and have agency in our own face. Providing control over the face is hard with current HMD technologies because face tracking is either cumbersome or error prone. However, limited animation is easily achieved based on speaking. We investigate the level of avatar enfacement, that is believing that a picture of a face is one's own face, with three levels of facial animation: (i) one in which the facial expressions of the avatars are static, (ii) one in which we implement lip-sync motion and (iii) one in which the avatar presents lip-sync plus additional facial animations, with blinks, designed by a professional animator. We measure self-identification using a face morphing tool that morphs from the face of the participant to the face of a gender matched avatar. We find that self-identification on avatars can be increased through pre-baked animations even when these are not photorealistic nor look like the participant.

Using Facial Animation to Increase the Enfacement Illusion and Avatar Self-Identification