Robotics Institute 

University of Michigan, Ann Arbor

© 2017 by Bruce Personal Website. 

Updated on 8/21/2017

Abstract— Image-based fiducial markers are widely used in robotics and computer vision problems such as object tracking in cluttered or textureless environments, camera (and multi-sensor) calibration tasks, or vision-based simultaneous localization and mapping (SLAM). The state-of-the-art fiducial marker detection algorithms rely on consistency of the ambient lighting. This paper introduces LiDARTag, a novel fiducial tag design and detection algorithm suitable for light detection and ranging LiDAR point clouds. The proposed tag runs in real-time and can process data faster than the currently available LiDAR sensors frequencies. Due to the nature of the LiDAR's sensor, rapidly changing ambient lighting will not affect detection of a LiDARTag; hence, the proposed fiducial marker can operate in a completely dark environment. In addition, the LiDARTag nicely complements available visual fiducial markers as the tag design is compatible with available techniques, such as AprilTags, allowing for efficient multi-sensor fusion and calibration tasks. The experimental results, verified by a motion capture system, confirm the proposed technique can reliably provide a tag's pose and its unique ID code. The paper is here.

Presentation coming soon!!!