A System for Posting on an SNS an Author Portrait Selected using Facial Expression Analysis while Writing a Message

We have developed a real-time system for expressing emotion as a portrait selected according to the facial expression while writing a message. The portrait is decided by a hair style, a facial outline, and a cartoon of facial expression. The image signal is analyzed by the system using image processing software (OpenCV). The system selects one portrait expressing one of neutral, subtly smiling and smiling facial expressions using two thresholds on facial expression intensity. We applied the system to post on a Social Network Service (SNS) a message and a portrait expressing the facial expression.