Elastic immersive wave experimentation: Theory and physical implementation

Immersive experimentation in a wave propagation laboratory.

A wave propagation laboratory is proposed which enables the study of the interaction of broadband signals with complex materials. A physical experiment is dynamically linked to a numerical simulation in real time through transmitting and recording transducer surfaces surrounding the target. The numerical simulation represents an arbitrarily larger domain, allowing experiments to be performed in...

Matrix theory of elastic wave scattering

Upon invoking Huygen's principle, matrix equations are obtained describing the scattering of waves by an obstacle of arbitrary shape immersed in an elastic medium. New relations are found connecting surface tractions with the divergence and curl of the displacement, and conservation laws are discussed. When mode conversion effects are arbitrarily suppressed by resetting appropriate matrix eleme...

General Theory of Elastic Wave Scattering

ZPL implementation of AMR Algorithm for Elastic Wave Propagation

The ZPL implementation of the adaptive mesh re nement algorithm for solving hyperbolic systems of conservation laws for elastic wave propagation in two space dimensions is described in this paper An numerical example is presented here More evaluations should be done to prove the e ciency of this implementation

Advances in elastic matching theory and its implementation

Computational anatomy via the deformable modeling or elastic matching paradigm is gaining increased prominence in medical imaging research. Our work in atlas-based localization of neuroanatomy has progressed toward statistical approaches that subsume the original elastic matching while retaining its practical avor. In view of the complex geometries involved and the sparsity of image features in...