Line of sight tracking system integrated with head tracker and eye tracker and mehtod thereof

The present invention relates to eye tracking system with a head tracker and eye tracker integrated, recognizes a structure of the user's helmet, and then calculates a first helmet location and helmet direction information on the three-dimensional coordinate system to estimate the behavior of the helmet, transmitting the synchronization according to the received the helmet location and helmet direction information calculated synchronization signal head tracker, and calculating a second line of sight direction information on the two-dimensional coordinate system to track the user's gaze direction, and the calculated line of sight direction information child transmission in synchronization according to the received sync signal tracker and the helmet position information, helmet direction information and reception, and to take the user using the received helmet position information, helmet direction information and eye direction information, the gaze direction information a third three-dimensional direction of the first three-dimensional coordinate system and the second three-dimensional coordinate system is integrated It constitutes a head tracker and eye gaze tracker system is integrated to an integrated controller for calculating and displaying on the coordinate system. Accordingly, there is a correct and effective to estimate the gaze direction by rapid to track both the position and orientation of the helmet, and the user's gaze direction calculating the user's gaze direction. And there is an effect capable of tracking the head or by integrating using a variety of algorithms when the eye tracking, one of the more accurate and rapid head tracking and eye tracking to compensate for disadvantages caused when using the algorithm.