Abstract: A method and apparatus for performing inbuilt calibration of camera system that performs three-dimensional measurements and depth reconstruction are described. In one embodiment, the method includes displaying, using a projector of a capture device, a fiducial projection pattern in response to calibration of the capture device. The method may also include capturing, with a camera of the capture, an image of the fiducial projection pattern. The method may also include determining calibration coefficient values indicative of relative physical relationships of one or more components of the depth camera system based on analysis of the captured image of the fiducial projection pattern.

Abstract: A method and apparatus for performing inbuilt calibration of camera system that performs three-dimensional measurements and depth reconstruction are described. In one embodiment, the method includes displaying, using a projector of a capture device, a fiducial projection pattern in response to calibration of the capture device. The method may also include capturing, with a camera of the capture, an image of the fiducial projection pattern. The method may also include determining calibration coefficient values indicative of relative physical relationships of one or more components of the depth camera system based on analysis of the captured image of the fiducial projection pattern.

Abstract: A waveguide under test can be exposed to a light signal whose polarization rotates between the vertical and horizontal polarizations. The intensity detected at a photodetector can be separated into AC and DC components. The AC components may be utilized to derive a characteristics which is indicative of birefringence of the waveguide. If the light signal is scanned over the waveguide under test, a measure of the birefringence at each position along the waveguide may be determined.