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Structure-aware parametric representations for time-resolved light transport
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DOI：10.1364/OL.465316.png)
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Time-resolved illumination provides rich spatiotemporal information for applications such as accurate depth sensing or hidden geometry reconstruction, becoming a useful asset for prototyping and as input for data-driven approaches. However, time-resolved illumination measurements are high-dimensional and have a low signal-to-noise ratio, ham-pering their applicability in real scenarios. We propose a novel method to compactly represent time-resolved illumi-nation using mixtures of exponentially modified Gaussians that are robust to noise and preserve structural information. Our method yields representations two orders of magnitude smaller than discretized data, providing consistent results in such applications as hidden-scene reconstruction and depth estimation, and quantitative improvements over previous approaches. (c) 2022 Optica Publishing Group
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3.3
论文数:
4.0W
被引数:
7.6W
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