Multi-Ring Color Fiducial Systems for Scalable Fiducial Tracking Augmented Reality

C-blink: a hue-difference-based light signal marker for large screen interaction via any mobile terminal

Proceedings of the 17th annual ACM symposium on User interface software and technology

Color targets: fiducials to help visually impaired people find their way by camera phone

Journal on Image and Video Processing

Handling occlusions for robust augmented reality systems

Journal on Image and Video Processing - Special issue on fast and robust methods for multiple-view vision

Robust real-time detection of multi-color markers on a cell phone

Journal of Real-Time Image Processing