Samsung Electronics Co., Ltd.

Disney Enterprises, Inc.

Aarhus Universitet

Toshiya Hachisuka

Hyong Euk Lee

Do Kyoon Kim

Yong Beom Lee

In Woo Ha

Wojciech Jarosz

Derek Nowrouzezahrai

Min Su Ahn

Iliyan Georgiev

Jacob Toft Pedersen

Provided is an image processing apparatus for performing photon mapping, and the image processing apparatus may perform ray tracing for photon mapping, sample a ray space based on a result of the ray tracing, and perform pseudo photon mapping using the sampled ray space.

Image processing apparatus and method using photon mapping and ray tracing and increasing a rate of photon mapping

Methods and systems of joint path importance sampling are provided to construct light paths in participating media. The product of anisotropic phase functions and geometric terms across a sequence of path vertices are considered. A connection subpath is determined to join a light source subpath with a light receiver subpath with multiple intermediate vertices while considering the product of phase functions and geometry terms. A joint probability density function ('PDF') may be factorized unidirectional or bidirectional. The joint PDF may be factorized into a product of multiple conditional PDFs, each of which corresponds to a sampling routine. Analytic importance sampling may be performed for isotropic scattering, whereas tabulated importance sampling may be performed for anisotropic scattering.

Methods and systems of joint path importance sampling

Growing community of inventors

Aarhus, Denmark

Toshiya Hachisuka