arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2005.06508eess.IVcs.CV
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一种通用光场重建的生成模型

A Generative Model for Generic Light Field Reconstruction

University of Siegen(锡根大学)

Paramanand Chandramouli, Kanchana Vaishnavi Gandikota, Andreas Goerlitz, Andreas Kolb, Michael Moeller

摘要:

最近,深度生成模型在训练数据分布建模方面取得了令人印象深刻的进展。在这项工作中,我们首次提出了一个生成模型的4D光场补丁使用变分自动编码器来捕捉光场补丁的数据分布。我们开发了一个生成模型的光场的中心视图为条件,并将其作为一个能量最小化框架,以解决不同的光场重建任务之前。虽然纯基于学习的方法确实在此类问题的每个实例上都取得了出色的结果,但它们的适用性仅限于它们所训练的特定观察模型。相反,我们训练的光场生成模型可以作为先验纳入任何基于模型的优化方法,因此可以扩展到各种重建任务,包括光场视图合成,空间-角度超分辨率和从编码投影重建。我们提出的方法表现出良好的重建效果,其性能接近端到端训练网络,同时在合成和真实场景上都优于传统的基于模型的方法。此外,我们表明,我们的方法使可靠的光场恢复,尽管在输入的失真。

英文摘要:

Recently deep generative models have achieved impressive progress in modeling the distribution of training data. In this work, we present for the first time a generative model for 4D light field patches using variational autoencoders to capture the data distribution of light field patches. We develop a generative model conditioned on the central view of the light field and incorporate this as a prior in an energy minimization framework to address diverse light field reconstruction tasks. While pure learning-based approaches do achieve excellent results on each instance of such a problem, their applicability is limited to the specific observation model they have been trained on. On the contrary, our trained light field generative model can be incorporated as a prior into any model-based optimization approach and therefore extend to diverse reconstruction tasks including light field view synthesis, spatial-angular super resolution and reconstruction from coded projections. Our proposed method demonstrates good reconstruction, with performance approaching end-to-end trained networks, while outperforming traditional model-based approaches on both synthetic and real scenes. Furthermore, we show that our approach enables reliable light field recovery despite distortions in the input.

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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