Multisensor system self-calibration

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Abstract
This paper will address the topic of multisensor self-calibration in vision metrology systems employing still-video imagery. Under this approach greater fidelity is afforded in the recovery of sensor interior orientation and distortion parameters. Moreover, a combination of wide- and narrow-angle imaging sensors affords a better insight into the problems of in-plane image distortion and out-of-plane sensor surface deformation, which are often overlooked sources of error in metric applications of CCD cameras. This on-site calibration approach is demonstrated in the measurement, to better than 1 to 100,000 accuracy, of a 5m X 2.5m bond tool used in aircraft manufacturing.

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