Developing an optical design pipeline for correcting lens aberrations and vignetting in light field cameras.
Developing an optical design pipeline for correcting lens aberrations and vignetting in light field cameras.
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DOI：
10.1364/oe.399735
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发表时间：
2020-10
期刊：
影响因子：
3.8
通讯作者：
Qi Cui;Shuaishuai Zhu;Liang Gao
中科院分区：
文献类型：
--
作者：
Qi Cui;Shuaishuai Zhu;Liang Gao
凭借其 3D 成像功能，光场相机已被应用于多种应用。通过将微透镜阵列放置在传统相机前面，人们可以测量入射光线的空间和角度信息并重建深度图。光场相机独特的光学架构对镜头设计过程中的像差和渐晕控制提出了新的挑战。我们的研究结果表明，可以通过数字重新聚焦对场曲进行数值校正，并且必须最大限度地减少渐晕，因为它会降低深度重建精度。为了解决这一未满足的需求，我们在此提出了一种用于光场相机的光学设计流程，并演示了其在光场内窥镜中的实现。
Light field cameras have been employed in myriad applications thanks to their 3D imaging capability. By placing a microlens array in front of a conventional camera, one can measure both the spatial and angular information of incoming light rays and reconstruct a depth map. The unique optical architecture of light field cameras poses new challenges on controlling aberrations and vignetting in lens design process. The results of our study show that field curvature can be numerically corrected for by digital refocusing, and vignetting must be minimized because it reduces the depth reconstruction accuracy. To address this unmet need, we herein present an optical design pipeline for light field cameras and demonstrated its implementation in a light field endoscope.