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Facial Action Coding System, FACT, is a new technology that anables computer to indentify human emotions. This technology is really helpful for teacher and student in class base on the use of it is to read the emotional expressions.

There are 44 major muscles in the model must move like human muscles, it begins when the computer constructs a 3-D computer model of the face. In order to indentify human emotions, there are six basic emotions are happiness, surprise, aner, disgust, fear, and sadness, and then associated it with the characteristic movements of the facial muscles. Then using video imagery, in real face, weighting the different units, the sofware can identify mixed emotions and compared against a no emotion face. In our life, we perform this same calculation every day, you can tell someone is happy or not by just look on their face. But computer can't so this technology could teachs it, so it can know people well and give out the best experiences.

"A classroom computer could recognize when a student is becoming confused or bored," Dr. Huang predicts. "Then it could modify the lesson, like an effective human instructor." Not all students are good, not all students are interesting with the lessons, so this is a really helpful idea for the classes. Teacher or the computer now can know well how is the student with the lessons. If they are happy, that meant the lesson is interesting, if they are bored, the teacher now know they need to change it so everyone is interested with it.

But that is all we need, the system can stop at this. There is no need for the computer to go further than that. If more than that, the computer could collect every informations and storage it, it's seems to be very scarry.

This technology is useful if that is all it can do. Use this "FACT" in the classroom is a good idea for the improvement of studying environment. It is also a very need thing for the computer to give the feedback when it know more about humans.

Score: 2