3D Fresnel field computing method based on its propagation reversibility

Kai Zhang; Xiangxiang Wang; Shengxia Tan; Chuan Shen; Sui Wei

doi:10.1117/12.2268726

8 March 2017 3D Fresnel field computing method based on its propagation reversibility

Kai Zhang, Xiangxiang Wang, Shengxia Tan, Chuan Shen, Sui Wei

Proceedings Volume 10255, Selected Papers of the Chinese Society for Optical Engineering Conferences held October and November 2016; 102550N (2017) https://doi.org/10.1117/12.2268726
Event: Selected Papers of the Chinese Society for Optical Engineering Conferences held October and November 2016, 2016, Jinhua, Suzhou, Chengdu, Xi'an, Wuxi, China

Abstract

There are many 3D data structures for computing diffraction field, the description based on 3D point-cloud is the elemental method of other descriptions, the diffraction field of 3D scene can be thought as the superposition of the diffraction field of each sampled light point and other descriptions can be thought as grouping with point-cloud by different way. The paper focuses on devising a computation method of 3D Fresnel field which is based on Fresnel diffraction field propagation reversibility. The proposed method combines the reversibility of Fresnel propagation and the requirement of sampling spacing by Nyquist criterion, i.e. to find the best space positions to optimize the number of sampling points and the reconstruction for the 3D Fresnel field. The method can be applied to reduce the computational complexity and improve computational efficiency.

Citation Download Citation

Kai Zhang, Xiangxiang Wang, Shengxia Tan, Chuan Shen, and Sui Wei "3D Fresnel field computing method based on its propagation reversibility", Proc. SPIE 10255, Selected Papers of the Chinese Society for Optical Engineering Conferences held October and November 2016, 102550N (8 March 2017); https://doi.org/10.1117/12.2268726

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