In just a handful of years, the business of emotion detection - using artificial intelligence to identify how people are feeling - has moved beyond the stuff of science fiction to a $20 billion ...

As such, gait detection and identification of walking trajectories combined with facial expressions in a given pedestrian setting can predict their future walking behavior and emotional state.

Sighthound Cloud can recognize faces and detect emotion in your images or video streams, with more accuracy than Microsoft Cognitive Services.