Using a time-delay and integration camera at a non-zero viewing angle under vibration conditions |
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Authors: | Jari Miettinen Heikki Ailisto |
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Institution: | VTT Electronics, P.O. Box 1100, FI-90571, Oulu, Finland |
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Abstract: | The use of a TDI camera is restricted to cases of viewing from the direction of the surface normal. Our previous work indicated that a TDI camera can be used with viewing angles up to 30° from the surface normal which extends the usability of TDI for visual inspection applications. The objective of this paper is to examine the use of a TDI camera at a non-zero viewing angle under vibration conditions. The effects caused by vibration of the surface to be viewed become critical when using a TDI camera at non-zero viewing angles. A method of approximating the TDI performance under vibration conditions was determined and evaluated experimentally. The resulting measurements support the approximating method developed here. |
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