Meshless Monte Carlo radiation transfer method for curved geometries using signed distance functions.

ABSTRACT:

Significance

Monte Carlo radiation transfer (MCRT) is the gold standard for modeling light transport in turbid media. Typical MCRT models use voxels or meshes to approximate experimental geometry. A voxel-based geometry does not allow for the precise modeling of smooth curved surfaces, such as may be found in biological systems or food and drink packaging. Mesh-based geometry allows arbitrary complex shapes with smooth curved surfaces to be modeled. However, mesh-based models also suffer from issues such as the computational cost of generating meshes and inaccuracies in how meshes handle reflections and refractions.

Aim

We present our algorithm, which we term signedMCRT (sMCRT), a geometry-based method that uses signed distance functions (SDF) to represent the geometry of th

SUBMITTER: McMillan L 

PROVIDER: S-EPMC9350858 | biostudies-literature | 2022 Aug

REPOSITORIES: biostudies-literature