We use speckle photography to measure the motion of a rough body. We show experimental results for lateral and longitudinal motions. The output of our experiments is a direct display of the motion path. Our methods are based upon a mixture of concepts from speckle photography and from holography.
© 1976 Optical Society of America
A. W. Lohmann and G. P. Weigelt, "Speckle methods for the display of motion paths," J. Opt. Soc. Am. 66, 1271-1274 (1976)