Vujic, Angela, Thad Starner, and Melody Jackson. "MoodLens: towards improving nonverbal emotional expression with an in-lens fiber optic display." Proceedings of the 2016 ACM International Symposium on Wearable Computers. 2016.

Abstract

Using an outward-facing display mounted on eyeglasses, MoodLens seeks to help individuals express emotion who have lost the ability to speak or use facial muscles. MoodLens looks like normal eyeglasses when not in use and allows the wearer to experience eye contact normally. We collected data from non-disabled participants (i.e., potential conversation partners for the wearer) who viewed smiling, neutral and frowning emoticons on MoodLens accompanied by computerized speech. The emoticons were recognizable at conversational distances and altered the perceived emotional content of the speech significantly.