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http://dx.doi.org/10.5139/JKSAS.2008.36.7.680

Map Creation Algorithm and Initial Attitude Estimation Method for Optical Head Tracker System  

Lee, Young-Jun (서울대학교 기계항공공학부 대학원)
Park, Chan-Gook (서울대학교 기계항공공학부)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.36, no.7, 2008 , pp. 680-687 More about this Journal
Abstract
This paper presents map creation algorithm and initial attitude estimation method for the proposed optical head tracker system. The optical head tracker system consists of the IR stereo cameras and infrared LEDs as features on the helmet. In order for the stereo camera to track the luminous LEDs, it must take in to account the light radiation from the LEDs to determine the position of the center points. The proposed map creation algorithm makes map data about the position of features center points on the helmet frame. Also, initial attitude estimation method is proposed to estimate the initial attitude and position of a pilot head from the camera frame by the use of the feature pattern on the helmet. Therefore, the head motion can be expressed with respect to the body frame of a flight.
Keywords
Optical head tracker; Map creation algorithm; Initial attitude estimation method;
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