Fiducial Marker Systems for Pose Estimation and Localization
Summary
Fiducial marker systems employ visually distinctive patterns—such as square codes or symbolic glyphs—to establish a known reference in three-dimensional space. When imaged by a calibrated camera or stereo rig, the precise geometry of each marker enables algorithms to infer both position and orientation, often expressed as six-degree-of-freedom pose. By combining high-contrast patterns with robust detection pipelines, these markers support real-time localisation and mapping in environments where GPS signals are unavailable or insufficiently accurate. Key developments include hybrid marker designs for non-planar tools, recursive arrangements to extend detection range under occlusion, and visual–inertial fusion to correct drift in prolonged operations. The resulting systems find application in autonomous aerial and ground vehicles, robotic manipulators, augmented reality interfaces and surgical navigation platforms, delivering centimetre-level accuracy and millisecond-scale update rates.
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Fiducial Marker Systems for Pose Estimation and Localization publication trend
The graph below shows the total number of articles in fiducial marker systems for pose estimation and localization across all publications each year (not limited to Nature Index journals).
Technical terms
Fiducial marker: A deliberately placed, machine-readable pattern used as a positional reference in an imaging scene.
Pose estimation: The computation of an object’s orientation and position in space, typically expressed as translation and rotation.
Localization: The determination of an agent’s or camera’s global position within a predefined coordinate frame.
Visual-inertial odometry: A sensor fusion technique combining camera imagery with inertial measurements to estimate continuous motion.
Simultaneous localization and mapping (SLAM): An approach whereby a device builds a map of an unknown environment while concurrently tracking its own pose within that map.
References
- UAV navigation in large-scale GPS-denied bridge environments using fiducial marker-corrected stereo visual-inertial localisation. Automation in Construction (2023).
- Real-time surgical tool tracking and pose estimation using a hybrid cylindrical marker. International Journal of Computer Assisted Radiology and Surgery (2017).
- Fractal Markers: A New Approach for Long-Range Marker Pose Estimation Under Occlusion. IEEE Access (2019).
- Design, Detection, and Tracking of Customized Fiducial Markers. IEEE Access (2021).
- Application of a Vision-Based Single Target on Robot Positioning System. Sensors (2021).
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