Shack-Hartmann wavefront reconstruction speed up with embedded GPU

Yao Fan; Yaxuan Duan; Jingwei Kou; Weigang Zhang; Qing Liu; Zhengshang Da

doi:10.1117/12.2648160

15 December 2022 Shack-Hartmann wavefront reconstruction speed up with embedded GPU

Yao Fan, Yaxuan Duan, Jingwei Kou, Weigang Zhang, Qing Liu, Zhengshang Da

Proceedings Volume 12478, Thirteenth International Conference on Information Optics and Photonics (CIOP 2022); 124780K (2022) https://doi.org/10.1117/12.2648160
Event: Thirteenth International Conference on Information Optics and Photonics (CIOP 2022), 2022, Xi'an, China

Abstract

Shack-Hartmann sensor is widely used in adaptive optics systems, and laser beam quality measurements. The traditional method separates measures and calculations, and the wavefront reconstruction algorithm is slow to implement on the host computer. In this paper, the embedded GPU is introduced to Shack-Hartmann sensors' wavefront phase reconstruction. A parallel calculation method is proposed to speed up the wavefront phase reconstruction process. The experiment result shows the algorithm speed improves 50× with the image size of 2592×2048 pixels.

Citation Download Citation

Yao Fan, Yaxuan Duan, Jingwei Kou, Weigang Zhang, Qing Liu, and Zhengshang Da "Shack-Hartmann wavefront reconstruction speed up with embedded GPU", Proc. SPIE 12478, Thirteenth International Conference on Information Optics and Photonics (CIOP 2022), 124780K (15 December 2022); https://doi.org/10.1117/12.2648160

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