Differentiable time-gated rendering
Differentiable time-gated rendering
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可微时间选通渲染
DOI:
10.1145/3478513.3480489
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发表时间:
2021
影响因子:
6.2
通讯作者:
Zhao, Shuang
中科院分区:
文献类型:
--
作者:
Wu, Lifan;Cai, Guangyan;Ramamoorthi, Ravi;Zhao, Shuang
The continued advancements of time-of-flight imaging devices have enabled new imaging pipelines with numerous applications. Consequently, several forward rendering techniques capable of accurately and efficiently simulating these devices have been introduced. However, general-purpose differentiable rendering techniques that estimate derivatives of time-of-flight images are still lacking. In this paper, we introduce a new theory of differentiable time-gated rendering that enjoys the generality of differentiating with respect to arbitrary scene parameters. Our theory also allows the design of advanced Monte Carlo estimators capable of handling cameras with near-delta or discontinuous time gates.We validate our theory by comparing derivatives generated with our technique and finite differences. Further, we demonstrate the usefulness of our technique using a few proof-of-concept inverse-rendering examples that simulate several time-of-flight imaging scenarios.
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DOI:
10.1109/iccphot.2019.8747336
发表时间:
2019
期刊:
2019 IEEE International Conference on Computational Photography (ICCP)
影响因子:
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作者:
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发表时间:
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期刊:
ACM Transactions on Graphics (TOG)
影响因子:
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发表时间:
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期刊:
2017 IEEE Conference on Computer Vision and Pattern Recognition (CVPR)
影响因子:
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影响因子:
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作者:
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影响因子:
6.2
作者:
Zhang, Cheng;Yu, Zihan;Zhao, Shuang
通讯作者:
Zhao, Shuang