This is the new version of Affetto, the robot child head that's a testbed for synthetic facial expressions. According to the Osaka University researchers who birthed Affeto, their goal is to "offer a path for androids to express greater ranges of emotion, and ultimately have deeper interaction with humans." From Osaka University:
The researchers investigated 116 different facial points on Affetto to measure its three-dimensional movement. Facial points were underpinned by so-called deformation units. Each unit comprises a set of mechanisms that create a distinctive facial contortion, such as lowering or raising of part of a lip or eyelid. Measurements from these were then subjected to a mathematical model to quantify their surface motion patterns.
While the researchers encountered challenges in balancing the applied force and in adjusting the synthetic skin, they were able to employ their system to adjust the deformation units for precise control of Affetto's facial surface motions.
"Android robot faces have persisted in being a black box problem: they have been implemented but have only been judged in vague and general terms," study first author Hisashi Ishihara says. "Our precise findings will let us effectively control android facial movements to introduce more nuanced expressions, such as smiling and frowning."