Automatic Calibration of Cameras with Special Motions
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We consider the problem of auto-calibrating the intrinsic parameters of a camera moving with a special motion: the rotation axis of the camera being perpendicular to its translation direction. Our method for calibrating the camera is based on Kruppa’s equation which in general requires solving a set of nonlinear equations. We prove in a theorem how to recover the true scale of the Kruppa’s equation from the eigenvalues of a matrix formed using the fundamental matrix between two views.