Interaction method using eye tracking data

An interaction method using eye tracking data, used in human-computer interface system with at least a screen configured to display at least user contents and an eye tracking device to collect eye tracking (ET) data,

• the method comprising following steps:
• displaying selection keys on the screen, when there is a selecting interaction control signal of the user reflecting that the user intends to automatically change the user contents being displayed on the screen;
• collecting and processing an ET dataset while the user is looking at the screen to determine the eye tracking data which is the data of coordinate form (x, y) corresponding to the position on the screen that the user's eyes look at;
• defining a selection key which the user wants to input based on at least the eye tracking data when the user inputs the selection key by eye gaze;
• automatically changing the user contents in a predefined changing manner corresponding to the selection key inputted by the eye gaze of the user,
• wherein said predefined changing manner selected from a group including at least scroll down, scroll up, scroll right, scroll left, zoom in, zoom out, turn the pages, move the pages, and insert new contents.