摘要:
A device comprising an optical element having an interior including a rigid, optically transparent material; a first surface of the optical element, the first surface including a region with an optically transparent surface for capturing images through the optical element; and a second surface of the optical element opposing the first surface. The device further comprising a center axis of the optical element passing through the first surface and the second surface; and a layer of a pliable, optically transparent material disposed on the second surface and attached to the second surface, a first side of the layer adjacent to the second surface of the optical element having a second index of refraction matched to a first index of refraction of the second surface, and a second side of the layer opposing the second surface of the optical element having an optical coating with a predetermined reflectance. Characterized in that it further comprises: a surface around the interior of the optical element including one or more light shaping features configured to control an illumination of the second surface; and a mechanical key on an exterior of the optical element for enforcing a predetermined position of the optical element within a fixture of an imaging system.
摘要:
Methods of and systems for three-dimensional digital impression and visualization of objects through an elastomer are disclosed. A method of estimating optical correction parameters for an imaging system include pressing an object of known surface topography against an elastomer and imaging a plurality of views of the surface topography of the object through the elastomer. The method also includes estimating a three-dimensional model of the object based on the plurality of views and estimating optical correction parameters based on a known surface topography of the object and the estimated three-dimensional model. The optical correction parameters correct distortions in the estimated three-dimensional model to better match the known surface topography.