Triangulation in Random Refractive Distortions

3D in Natural Random Refractive Distortions

Random distortions naturally affect images taken through atmospheric turbulence or wavy water. They pose new 3D recovery problems. Distortions are caused by the volumetric field of turbulent air or the 3D shape of water waves. We show methods that recover these 3D distorting media. Moreover, it is possible to triangulate objects beyond the refracting medium. Applications include sensing and stu...

Refractive Distortions of Two-Particle Correlations

Using optical model calculations it has recently been shown that refractive phenomena from the collective mean field can significantly alter the sizes inferred from two-pion correlations. We demonstrate that such effects can be accounted for in classical calculations if mean field effects are included.

Refractive Distortions of Two-Particle Correlations from Classical Trajectory Calculations

Possible counter-attacks against random geometric distortions

After a brief reminder on the real difficulties that digital watermarking software still has to tackle – especially some random geometric attacks such as StirMark – we present an early overview of on-going solutions to make the survival of the watermark possible. 1. TACKLE THE REAL PROBLEMS The recent literature on digital watermarking has introduced a new paradigm where signal processing, comp...

Efficiently navigating a random Delaunay triangulation

Planar graph navigation is an important problem with significant implications to both point location in geometric data structures and routing in networks. However, whilst a number of algorithms and existence proofs have been proposed, very little analysis is available for the properties of the paths generated and the computational resources required to generate them under a random distribution ...