San Diego-based Emotient Inc., a maker of facial expression recognition software, has closed a $6 million Series B round of funding, led by Silicon Valley venture firm Handbag LLC.

Intel Capital, Emotient’s first institutional investor, also participated in the round. To date, the company has raised $8 million since its 2012 launch.

The funds will be used to commercialize its emotion-recognition system and further develop products for the retail and health care markets.

The company’s software, called Facet, performs real-time, frame-by-frame analysis of people’s emotional responses. These include joy, surprise, anger, disgust, sadness and fear — as well as gender and demographic detectors.