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High-Accuracy Shape Measurement for Moving Objects by One-Shot Digital Holography

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Abstract

A technology is developed for shape measurement of moving objects by applying one-shot digital holography. The method consists of projection of a fringe pattern, recording of a complex-amplitude hologram, elimination of speckles, and calculation of depth from focus. Accuracy better than 0.0001 is obtained in the measurement of depth

© 2014 Optical Society of America

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