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20 May 2009 Quality weight based on log modulation amplitude for fringe analysis during optical fringe measurement
Yongjian Zhu; Shaohui Yin; Yufeng Fan; Binghai Lv
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Proceedings Volume 7283, 4th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment; 72833H (2009) https://doi.org/10.1117/12.828775
Event: AOMATT 2008 - 4th International Symposium on Advanced Optical Manufacturing, 2008, Chengdu, Chengdu, China
Abstract
A new quality weight for phase reconstructing (PhR) in optical fringe measurement is proposed, which is based on the combination of Log Modulation Amplitude and Phase Derivative Variance (LMAPDV). The LMAPDV quality weight is successfully used to guide the path-following PhR operation. Moreover, by incorporating with the modulation information, LMAPDV quality weight shows better performance in measuring the goodness of phase data than conventional Phase Derivative Variance (PDV) quality weight. In order to deal with phase maps with strong noise and/or low modulation, we introduce the LMAPDV quality weight into Least-Square (LS) PhR algorithm and compare it with PDV quality weight. Numerical and experimental results demonstrate that the proposed quality weight has higher reliability.
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Yongjian Zhu, Shaohui Yin, Yufeng Fan, and Binghai Lv "Quality weight based on log modulation amplitude for fringe analysis during optical fringe measurement", Proc. SPIE 7283, 4th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment, 72833H (20 May 2009); https://doi.org/10.1117/12.828775
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