Thanks to the development of network, video devices are used in various aspects of our lives such as video conference,
video call, etc. It is, however, very common that people tend to look at the computer screen instead of the video capture
device, which can affect the communication. We present a novel approach to solve this problem. Through estimating the
divert head angle and eyeball location recognition, we can estimate the visual angle. By moving the eyeball to adjust
visual line, it looks like that we're looking at each other. Our work is on the basis of face alignment and there is a
geometric 3D model and novel R -α, K -β relationship analysis methods adopted in this paper.