Disney Enterprises, Inc.

Mitsubishi Electric Research Laboratories, Inc.

Eidgenossische Technische Hochschule Zurich

Szymon Marek Rusinkiewicz

Wojciech Matusik

Wojciech Jarosz

Marios Papas

Tim A Weyrich

Wenzel A Jakob

Kalyan Krishna Sunkavalli

Markus H Gross

Hanspeter Pfister

Christian Regg

Techniques are described for designing and manufacturing a surface that produces a desired image when illuminated by a light source. As described, the desired image may be decomposed into a collection of Gaussian kernels (referred to as Gaussians). A shape of a micropatch lens corresponding to each Gaussian may be determined, and the resulting micropatch lenses may be assembled to form a highly continuous surface that will cast an approximation of the desired image formed form the sum of a plurality of Gaussian caustics. The disclosed techniques may be used to create a design for a light-redirecting surface amenable to milling (or other manufacturing process).

Reflective and refractive surfaces configured to project desired caustic pattern

A technique for fabricating a highlight hologram based on a digital object performs point sampling on the object and represents each sampled point as a geometric patch. A set of geometric patches corresponding to sampled points from the object are fabricated into a substrate. A paraboloid patch may be used for reflective substrates while a hyperboloid may be used for transmissive substrates. To avoid specifying overlapping patches, which are impractical to fabricate, certain of the sample points may be merged. An output set of grooves is saved and may be used to specify fabrication of a highlight hologram on the physical substrate.

Computational highlight holography

A method factorizing a sequence of images acquired of a scene into lighting components. The scene is illuminated by a moving light source. An appearance profile is constructed for each pixel in the sequence of images. The appearance profile is a vector representing intensities of the pixel at instances in time. The appearance profiles are factorized into a shadow component, a skylight component, and a sunlight component.

System and method for factorizing light in a sequence of images

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Princeton, NJ, United States of America

Szymon Marek Rusinkiewicz