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The DOI matches its Crossref record; 31 of the 31 references it cites were found in a registry or an index.

Sparse-to-Dense: Depth Prediction from Sparse Depth Samples and a Single Image

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Ma, Fangchang, Karaman, Sertac·2018·2018 IEEE International Conference on Robotics and Automation (ICRA)

Abstract

We consider the problem of dense depth prediction from a sparse set of depth measurements and a single RGB image. Since depth estimation from monocular images alone is inherently ambiguous and unreliable, to attain a higher level of robustness and accuracy, we introduce additional sparse depth samples, which are either acquired with a low-resolution depth sensor or computed via visual Simultaneous Localization and Mapping (SLAM) algorithms. We propose the use of a single deep regression network to learn directly from the RGB-D raw data, and explore the impact of number of depth samples on prediction accuracy. Our experiments show that, compared to using only RGB images, the addition of 100 spatially random depth samples reduces the prediction root-mean-square error by 50% on the NYU-Depth-v2 indoor dataset. It also boosts the percentage of reliable prediction from 59 % to 92 % on the KITTI dataset. We demonstrate two applications of the proposed algorithm: a plug-in module in SLAM to convert sparse maps to dense maps, and super-resolution for LiDARs. Software22https://github.com/fangchangma/sparse-to-dense and video demonstration33https://www.youtube.com/watch?v=vNIIT_M7×7Y are publicly available.

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Metadata

Authors
Ma, F., & Karaman, S.
Venue
2018 IEEE International Conference on Robotics and Automation (ICRA)
Publisher
IEEE
Published
2018-05
Pages
4796-4803
ISSN
1050-4729 (ISSN-L)
OpenAlex
W2963045776
Cited by
650
References
31
FWCI
21.62
Type
conference paper
Language
en
Open access
green

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CoChat. (2026). Citation check: Sparse-to-Dense: Depth Prediction from Sparse Depth Samples and a Single Image. https://app.cochat.ai/papers/10.1109/icra.2018.8460184
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Ma, F., & Karaman, S. (2018). Sparse-to-Dense: Depth Prediction from Sparse Depth Samples and a Single Image. 2018 IEEE International Conference on Robotics and Automation (ICRA). https://doi.org/10.1109/icra.2018.8460184

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