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Proceedings Paper

Speckle characterization in free space and imaging space
Author(s): Guoxian Tang; Meifang Xu; Wenhong Gao; Yunbo Shi; Jun Liu; Xuyuan Chen
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Paper Abstract

There have two ways to observe speckle, free space and image space. We introduced the factors impact speckle contrast in a speckle characterization system and established an equivalent relation between image space speckle characterization and free space speckle characterization, validating the equivalent relation through experiments. The experimental results show that if the equivalent relation come into existence, the speckle contrast measured in image space match well with it in free space. At last we have discussed the speckle in a projection system with a rough surface inside and given the compound speckle measuring method.

Paper Details

Date Published: 11 September 2012
PDF: 6 pages
Proc. SPIE 8413, Speckle 2012: V International Conference on Speckle Metrology, 841304 (11 September 2012); doi: 10.1117/12.979633
Show Author Affiliations
Guoxian Tang, North Univ. of China (China)
Meifang Xu, North Univ. of China (China)
Wenhong Gao, North Univ. of China (China)
Yunbo Shi, North Univ. of China (China)
Jun Liu, North Univ. of China (China)
Xuyuan Chen, North Univ. of China (China)
Vestfold Univ. College (Norway)

Published in SPIE Proceedings Vol. 8413:
Speckle 2012: V International Conference on Speckle Metrology
Ángel Fernandez Doval; Cristina Trillo, Editor(s)

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