I used the knowledge in computer vision to improve the in-class teaching. In traditional classes, teacher can be interrupted many times in class to answer students’ questions. However, not every student is so active. To those students who are not active, they might be too shame to ask questions in class. It is very possible that they forgot their questions after class. In that case, it is bad to their study process. Even though many students get their questions solved by putting forward in class, it might still have bad effect to the whole teaching process. It not only influenced other students’ learning process, but also influenced the teacher’s arrange of teaching. The overwhelm in this part can make teachers focus less in other parts of the class.

The intelligent classroom is shown in figure 1.