In this paper, we introduce a new deformable model for image segmentation, by reformulating a region based active contours energy into a geodesic contour energy involving a Finsler metric. As a result, we solve the region based active contours energy minimization problem without resorting to level set functions, but using a robust Eikonal equation framework. By sampling a set of control points ...

Transmission Ultrasound Computed Tomography (CT) is strongly affected by the acoustic refraction properties of the imaged tissue, and proper modeling and correction of these effects is crucial to achieving high-quality image reconstructions. A method that can account for these refractive effects solves the governing Eikonal equation within an iterative reconstruction framework, using a wave-fro...

We consider the gravitational scattering of point particles in four dimensions, at Planckian centre of mass energy and low momentum transfer, or the eikonal approximation. The scattering amplitude can be exactly computed by modelling point particles by very generic metrics. A class of such metrics are black hole solutions obtained from dimensional reduction of p-brane solutions with one or more...

A bstract The exploration of the massive double copy is still in its infancy, and only a few examples limited contexts are known. In this paper, we analyze newly discovered for topologically theories beyond tree-level amplitudes high-energy (eikonal) limit. We find that contrary to simple relation occurs massless d ? 4 case, requires information outside eikonal limit give correct results. Howev...

Non-factorizable virtual corrections to Higgs boson production in weak fusion at next-to-next-to-leading order QCD were estimated the eikonal approximation [1]. This corresponds expansion of relevant amplitudes around forward limit. In this paper we compute leading power correction limit and show that it is proportional first transverse momentum or mass over partonic center-of-mass energy. More...