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

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

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.

Original languageEnglish
Title of host publicationSPIE Future Sensing Technologies 2021
EditorsMasafumi Kimata, Joseph A. Shaw, Christopher R. Valenta
PublisherSPIE
ISBN (Electronic)9781510646919
DOIs
Publication statusPublished - 2021
EventSPIE Future Sensing Technologies 2021 - Virtual, Online, Japan
Duration: 15 Nov 202119 Nov 2021

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume11914
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferenceSPIE Future Sensing Technologies 2021
Country/TerritoryJapan
CityVirtual, Online
Period15/11/2119/11/21

Keywords

  • AR/VR
  • Description method
  • Fitting accuracy
  • Fitting speed
  • Freeform surface
  • Parameter analysis

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