System and method for calibrating intrinsic parameters of a camera using optical raytracing techniques

摘要

A method of calibrating intrinsic parameters associated with a camera includes positioning a camera to receive collimated light from a rotatable collimator, wherein the collimated light is provided to the camera via a target having a central target aperture and a plurality of peripheral target apertures located on a periphery of the target. The method further includes rotating the collimator along a first axis extending through an entrance pupil location of the camera and recording spot positions associated with collimated light provided through one or more target apertures of the target at each first axis interval and determining a distortion profile associated with the camera based on the recorded spot positions measured at the plurality of first axis intervals.