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arXiv 2103.09022eess.IVcs.CVcs.LG
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使用投影域中的无监督深度学习消除ODT中的缺失圆锥伪影

Missing Cone Artifacts Removal in ODT using Unsupervised Deep Learning in Projection Domain

Korea Advanced Institute of Science and Technology (KAIST)(韩国科学技术院)

Hyungjin Chung, Jaeyoung Huh, Geon Kim, Yong Keun Park, Jong Chul Ye

摘要:

光学衍射层析成像(ODT)通过测量不同角度的散射场,得到折射率(RI)的三维分布。虽然RI指数的分布是高度信息化的,但由于全息图的有限角度采集引起的缺失圆锥问题,与水平成像平面相比,重建沿着轴向方向具有非常差的分辨率。为了解决这个问题,我们提出了一个新的无监督深度学习框架,它通过最优传输驱动的cycleGAN来学习丢失投影视图的概率分布。实验结果表明,该方法可以有效地解决光学检测中的缺失圆锥伪影。

英文摘要:

Optical diffraction tomography (ODT) produces three dimensional distribution of refractive index (RI) by measuring scattering fields at various angles. Although the distribution of RI index is highly informative, due to the missing cone problem stemming from the limited-angle acquisition of holograms, reconstructions have very poor resolution along axial direction compared to the horizontal imaging plane. To solve this issue, here we present a novel unsupervised deep learning framework, which learns the probability distribution of missing projection views through optimal transport driven cycleGAN. Experimental results show that missing cone artifact in ODT can be significantly resolved by the proposed method.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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