Mechanical Cloaking of Halftoned Imagery
Jonàs Martínez (Lorraine University)
Sébastien Brisard (Aix Marseille Université)
Kostas Danas (Institut Polytechnique de Paris)
Eric Garner (Lorraine University)
Siddhant Kumar (TU Delft - Mechanical Engineering)
Sylvain Lefebvre (Lorraine University)
More Info
expand_more
Other than for strictly personal use, it is not permitted to download, forward or distribute the text or part of it, without the consent of the author(s) and/or copyright holder(s), unless the work is under an open content license such as Creative Commons.
Abstract
Cloaking objects with metamaterials has been extensively studied to hide internal objects across various physical properties, including optical, acoustic, and thermal. We explore a new direction in mechanical cloaking: halftoning an image using a porous structure that behaves like a uniform, linear, isotropic material and visually matches a target image. For an external observer, this creates the surprising effect where the object appears mechanically isotropic and homogeneous while its porous structure resembles a target image. We introduce a parametric class of porous structures suitable for this problem, as demonstrated by numerical experiments. The structures we define offer a wide range of visual contrasts, enabling effective halftoning while maintaining near isotropic effective mechanical properties.
help_outline