New Efficient Visual OILU Markers

Basic patterns are the source of a wide range of more or less complex geometric structures. We will exploit such patterns to develop new efficient visual markers. Besides being projective invariants, the proposed markers allow producing rich panel of unique identifiers, highly required for resource-intensive navigation and augmented reality applications. The spiral topology of our markers permits the validation of an accurate identification scheme, which is based on level set methods. The robustness of the markers against acquisition and geometric distortions is validated by extensive experimental tests.