The target painted with Zone plate pattern to be tracked by a high speed camera through another transparent Zone plate give us a very high precision method for the measurement of target displacement. The film unflatness, air fluctuation and the vibration of the high speed camera are also effected on the shape change of the moire. The small amount change of the position and the direction of the target can be easily measured by this method.
|Number of pages||3|
|Journal||Proceedings of SPIE - The International Society for Optical Engineering|
|State||Published - 2 Nov 1984|