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Optical-aberrations-corrected light field re-projection for high-quality plenoptic imaging.
Optics Express ( IF 3.2 ) Pub Date : 2020-02-03 , DOI: 10.1364/oe.381720
Yanqin Chen , Xin Jin , Bo Xiong

The singlet plenoptic camera, which consists of a single lens, microlens array (MLA) and image sensor, possesses the superiority that the imaging system is compact and lightweight, which is beneficial to miniaturization. However, such plenoptic cameras suffer from severe optical aberrations and their imaging quality is inferior for post-capture processing. Therefore, this paper proposes an optical-aberrations-corrected light field re-projection method to obtain high-quality singlet plenoptic imaging. First, optical aberrations are modeled by Seidel polynomials and included into point spread function (PSF) modeling. The modeled PSF is subsequently used to reconstruct imaging object information. Finally, the reconstructed imaging object information is re-projected back to the plenoptic imaging plane to obtain high-quality plenoptic images without optical aberrations. PSF modeling is validated by a self-built singlet plenoptic camera and the utility of the proposed optical-aberrations-corrected light field re-projection method is verified by numerical simulations and real imaging experiments.

中文翻译:

光学像差校正的光场重投影,可实现高质量的全光成像。

由单透镜,微透镜阵列(MLA)和图像传感器组成的单线全光摄像机具有成像系统紧凑轻巧的优势,这有利于小型化。然而,这样的全光相机遭受严重的光学像差,并且它们的成像质量对于捕获后处理而言是差的。因此,本文提出了一种光学像差校正的光场重投影方法,以获得高质量的单线全光成像。首先,光学像差通过Seidel多项式建模,并包含在点扩散函数(PSF)建模中。随后将建模的PSF用于重建成像对象信息。最后,重建的成像对象信息被重新投影回全光成像平面,以获得无光学像差的高质量全光图像。通过自建单线全光摄像机验证了PSF建模,并通过数值模拟和实际成像实验验证了所提出的光学像差校正光场重投影方法的实用性。
更新日期:2020-02-03
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