Wavefront phase reconstruction of plenoptic sensor based on centroid method

Zizhen Qin; Xi Luo; Feng Li; Hao Chen

doi:10.1117/12.2690775

17 August 2023 Wavefront phase reconstruction of plenoptic sensor based on centroid method

Zizhen Qin, Xi Luo, Feng Li, Hao Chen

Proceedings Volume 12757, 3rd International Conference on Laser, Optics, and Optoelectronic Technology (LOPET 2023); 1275704 (2023) https://doi.org/10.1117/12.2690775
Event: 3rd International Conference on Laser, Optics and Optoelectronic Technology (LOPET 2023), 2023, Kunming, China

Abstract

Traditional Hartmann sensors cannot provide accurate incident wavefront information under strong turbulence conditions, and the study of wavefront sensing methods under strong turbulence conditions, which is the key technology of adaptive optical systems. A method using a plenoptic sensor has attracted a lot of attention. Based on the principle of this structure, this paper proposes a method based on the centroid method to reconstruct the wavefront phase. By reconstructing the light field image, the centroid of the number of pixels within the sub-aperture changes. As the slope information is used to restore the wavefront phase, a large amount of phase gradient information can be obtained to reconstruct the phase. In addition, the simulation results show that, based on the plenoptic sensor, keeping the remaining parameters unchanged, the restoration accuracy can be improved by increasing the number of microlenses.

Citation Download Citation

Zizhen Qin, Xi Luo, Feng Li, and Hao Chen "Wavefront phase reconstruction of plenoptic sensor based on centroid method", Proc. SPIE 12757, 3rd International Conference on Laser, Optics, and Optoelectronic Technology (LOPET 2023), 1275704 (17 August 2023); https://doi.org/10.1117/12.2690775

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KEYWORDS

Phase reconstruction

Wavefronts

Reconstruction algorithms

Sensors

Microlens

Microlens array

Wavefront reconstruction

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