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Proceedings Paper

A database system using the empirical mode decomposition to smooth subjective speckles in fringe patterns
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Paper Abstract

A database system based on the empirical mode decomposition (EMD) to automatically reduce the subjective speckles in a fringe pattern is presented. To accurately evaluate the performance of speckle-reduction by the EMD, a method to design a computer generated signal is proposed as well. The simulation showed that the number to removed IMFs is changed when the period of the computer generated signal or the signal-to-noise ratio varies. Thus, we built up a database to identify the required number of removed IMFs. With reference to the database, speckles on the fringe pattern can be efficiently and robotically reduced.

Paper Details

Date Published: 18 August 2010
PDF: 10 pages
Proc. SPIE 7781, Photonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications IV, 77810P (18 August 2010); doi: 10.1117/12.859767
Show Author Affiliations
Wei-Hung Su, National Sun Yat-Sen Univ. (Taiwan)
Chao-Kuei Lee, National Sun Yat-Sen Univ. (Taiwan)
Cheng-Wei Lee, National Sun Yat-Sen Univ. (Taiwan)


Published in SPIE Proceedings Vol. 7781:
Photonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications IV
Shizhuo Yin; Ruyan Guo, Editor(s)

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