Incoherent Addition to Generalize Depolarization in Light Scattering Models

Case ID:
UA21-138
Invention:

Models for polarized light scattering are relevant for creating virtual reality scenes. To get a “real” looking model, the light scattering on the model needs to be simulated correctly to get a realistic model. The polarimetry of objects is measured in the lab, fit to a model, and this model is used to simulate the polarized light scattering of objects in computer simulations. This new model can generalize two unpolarized, partially polarized, or fully polarized scattering through 4 fully polarized terms. Since these terms are fully polarized, the technology does not require least-squares fitting.

Background:
The growth of virtual-reality (VR) and augmented-reality is becoming increasingly used in video games and as training tools. This increase in use is driving the need for innovations that make these technologies cheaper, faster, and more robust.

Models for polarized light scattering are of interest to computer vision, atmospheric sciences, stray light analysis, and medicine. The robustness of current polarized light scattering models is insufficient for generalization to a diverse set of materials. Even relatively simple variations in surface texture defy the constraints of a single model.

Applications:

  • Augmented reality / virtual reality
  • Computer vision
  • Medical education

Advantages:

  • Robust
  • Accurate
Patent Information:
Contact For More Information:
Richard Weite
Senior Licensing Manager, College of Optical Sciences
The University of Arizona
RichardW@tla.arizona.edu
Lead Inventor(s):
Meredith Kupinski
Keywords: