Messaoud Mostefai

Youssef Chahir, Messaoud Mostefai, Hamza Saida

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.

Messaoud Mostefai, Salah Khodja, Youssef Chahir

This short paper introduces a recently patented line based numbering system. The last allows a best concordance with decimal digits values, and open up new opportunities, which are not possible with the classical decimal numeration system. Proposed OILU symbolic allows generating a new type of number series, based on multi facets numbers splitting process. On the other hand, this new symbolic is used in the development of new visual markers, highly required in augmented reality and UAV's navigation applications.