Patent ID: 7633521
Filing Date: 2009-12-15
Classification: G01S,G06F

Abstract:
1. A system comprising: a plurality of cameras configurable for a motion capture session, each of the cameras having an illuminating device for generating light and a lens for capturing light reflected off of one or more retro-reflective markers used for the motion capture session; and a plurality of pieces of polarized material coupled over the illuminating device and the lens of each of the cameras, wherein for each individual camera, either a first orientation or a second orientation for the polarized material is selected based on which other cameras are within the individual camera's field of view and the orientation of the polarized material used for the other cameras, the first orientation being perpendicular to the second orientation; wherein the polarized material used for each camera comprises: a first piece of polarized material coupled over the lens of each camera; and a second piece of polarized material coupled over the illuminating ring of each camera; one or more spirit levels coupled to the first piece of polarized material, the spirit levels configured to provide an absolute reference for the polarization orientation of the first piece of polarized material; and one or more spirit levels coupled to the second piece of polarized material, the spirit levels configured to provide absolute reference for the polarization orientation of the second piece of polarized material.