Experimental Analysis of Reflector Test Based on Phase Measuring Deflectometry

Wenchuan, 赵文川 Zhao; Bin, 范斌 Fan; Fan, 伍凡 Wu; Xianyu, 苏显渝 Su; Wenjing, 陈文静 Chen

doi:10.3788/aos201333.0112002

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2019

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“…Su Peng et al of the University of Arizona in the United States proposed a SCOTS testing method and successfully detected the 8.2 m GMT sub-mirror through high-precision calibration [2] [3]. The Sichuan University [4] [5] and the Chinese Academy of Sciences [6] have done a lot of research on the stripe reflection technology and have achieved certain results. This paper introduces the basic principle of the stripe reflection method and introduces an iterative algorithm based on the Southwell integration method.…”

Section: Introductionmentioning

confidence: 99%

An Improved Algorithm for 3D Reconstruction Integration Based on Stripe Reflection Method

Gao¹,

Guo²

2019

OPJ

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This paper introduces the basic principle of stripe reflection method and proposes an improved algorithm on the traditional Southwell gradient iterative integration algorithm. The algorithm adds a coefficient value with an attenuation factor to the compensation height value and the value of the attenuation factor is changed by the determination of the compensation height threshold. Through computer simulation, the fitting error of the reconstructed surface show that the RMS of the new method is one order of magnitude better than the traditional algorithm and the PV value of the high frequency part is about 1/15 of the traditional algorithm. It is proved that the improved algorithm can effectively improve the convergence and noise resistance of the iterative algorithm.

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Section: Introductionmentioning

confidence: 99%