ISMAR '02 Proceedings of the 1st International Symposium on Mixed and Augmented Reality
ID CAM: A Smart Camera for Scene Capturing and ID Recognition
ISMAR '03 Proceedings of the 2nd IEEE/ACM International Symposium on Mixed and Augmented Reality
FlightTracker: A Novel Optical/Inertial Tracker for Cockpit Enhanced Vision
ISMAR '04 Proceedings of the 3rd IEEE/ACM International Symposium on Mixed and Augmented Reality
High-Performance Wide-Area Optical Tracking: The HiBall Tracking System
Presence: Teleoperators and Virtual Environments
ISMAR '06 Proceedings of the 5th IEEE and ACM International Symposium on Mixed and Augmented Reality
Using backlight intensity for device identification
ISMAR '06 Proceedings of the 5th IEEE and ACM International Symposium on Mixed and Augmented Reality
Trends in augmented reality tracking, interaction and display: A review of ten years of ISMAR
ISMAR '08 Proceedings of the 7th IEEE/ACM International Symposium on Mixed and Augmented Reality
Study on an indoor tracking system with infrared projected markers for large-area applications
Proceedings of the 8th International Conference on Virtual Reality Continuum and its Applications in Industry
Handling occlusions for robust augmented reality systems
Journal on Image and Video Processing - Special issue on fast and robust methods for multiple-view vision
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Since introducing a hybrid vision-inertial tracker using passive fiducial markers, we have encountered several applications in which the use of encoded LEDs would be preferable to paper fiducials. This includes small-scale applications requiring higher precision, and applications where the size of the target, or the range of viewing angles, or operation in the dark is important. We present a novel technique to encode LEDs without any need for synchronization between the LEDs and cameras. By using amplitude modulation codes instead of blinking binary codes, the LED is always on, and can therefore be tracked after it has been decoded at an arbitrary or even non-periodic frame rate with no missed data.