6ANDREW T DUCHOWSKI. A breadth-First survey of eye tracking applications[J]. Behavior Research Methods, Instruments, & Computers, 2002,34(4) : 1-16.
7YARBUS A L. Eye Movement and Vision[M]. New York: Plenum Press, 1967:19,29-58.
8CARLOS H MORIMOTO, MARCIO R M MIMICA. Eye gaze tracking techniques for interactive applications[J]. Computer Vision and Image Understanding, 2005,98 : 4-24.