Facial recognition: This new AI tool can spot when you are nervous or confused ZDNet

Whether you're intrigued or sceptical about it, use of facial recognition technology is growing – and now Fujitsu claims to have developed a way to help track emotions better too. The company's laboratories have come up with an AI-based technology that can track subtle changes of expression such as nervousness or confusion. Companies like Microsoft are already using emotion tools to recognise facial expression, but they are limited to eight "core" states: anger, contempt, fear, disgust, happiness, sadness, surprise or neutral. The current technology works by identifying various action units (AUs) – that is, certain facial muscle movements we make and which can be linked to specific emotions. For example, if both the AU "cheek raiser" and the AU "lip corner puller" are identified together, the AI can conclude that the person it is analysing is happy.