Analysis of CCD moiré pattern for micro-range measurements using the wavelet transform

Rong Seng Chang, Jin Yi Sheu, Ching Huang Lin, He Chiang Liu

研究成果: 雜誌貢獻期刊論文同行評審

26 引文 斯高帕斯(Scopus)

摘要

A new approach based on the moiré theory and wavelet transform (WT) is proposed for measuring the micro-range distance between a charge -couple-device (CCD) camera and a two-dimensional reference grating. The micro-range distance is determined by measuring the pitch of the moiré pattern image, which is digitized by a CCD camera. A one-dimensional WT algorithm is applied to estimate the pitch of the moiré pattern. Experimental results prove that this technique is very efficient and highly accurate. The moiré range finder is an economic technique for measuring a micro-range distance.

原文???core.languages.en_GB???
頁(從 - 到)43-47
頁數5
期刊Optics and Laser Technology
35
發行號1
DOIs
出版狀態已出版 - 2月 2003

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