Parameter analysis of freeform surface description method with automatically configurable Gaussian radial basis function

Xu Chang; Qun Hao; Yao Hu; Xin Tao; Jiahang Lv; Zhen Wang; Yiming Liu; Xuemin Cheng

doi:10.1117/12.2615962

14 November 2021 Parameter analysis of freeform surface description method with automatically configurable Gaussian radial basis function

Xu Chang, Qun Hao, Yao Hu, Xin Tao, Jiahang Lv, Zhen Wang, Yiming Liu, Xuemin Cheng

Author Affiliations +

Proceedings Volume 11914, SPIE Future Sensing Technologies 2021; 119140W (2021) https://doi.org/10.1117/12.2615962
Event: SPIE Future Sensing Technologies, 2021, Online Only

Abstract

In AR and VR devices, freeform surfaces are widely used to improve system performance. The manufacture of freeform surfaces is limited to the measurement. In order to guide the manufacturing process, we have proposed a real-time interferometric measurement system. In the system, an accurate, automatic and fast description method is needed to describe complex freeform surface. In order to improve this situation, a description method with automatically configurable Gaussian radial basis function (AC-GRBF) has been proposed. The key parameters of AC-GRBF, the number of subapertures N, coefficient A and the base number of GRBFs affect the fitting accuracy and speed, and they are analyzed by numerical simulation in the paper. The analysis in this paper can provide reference for the description method of GRBF, especially AC-GRBF, and the description of complex freeform surfaces in the design.

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Citation Download Citation

Xu Chang, Qun Hao, Yao Hu, Xin Tao, Jiahang Lv, Zhen Wang, Yiming Liu, and Xuemin Cheng "Parameter analysis of freeform surface description method with automatically configurable Gaussian radial basis function", Proc. SPIE 11914, SPIE Future Sensing Technologies 2021, 119140W (14 November 2021); https://doi.org/10.1117/12.2615962

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