I don't know someone else already share this but just in case.
https://mp1st.com/news/playstation-...nt-aims-to-deliver-more-realistic-experiences
"The method includes detecting eye gaze of a user using one or more eye gaze sensors disposed in a display
housing of the HMD. And, capturing images of a mouth of the user using one or more cameras disposed on
the HMD, wherein the images of the mouth include movements of the mouth. Then, the method includes
generating a virtual face of the user.
The virtual face includes virtual eye movement obtained from the eye gaze of the user and virtual mouth
movement obtained from said captured images of the mouth. The method includes presenting an avatar of
the user in the VR scene with the virtual face.
The avatar of the user is viewable by another user having access to view the VR scene from a perspective that
enables viewing of the avatar having the virtual face of the user. Facial expressions and movements of the mouth
of the user wearing the HMD are viewable by said other user, and the virtual face of the user is presented without the HMD. "