Compact single-shot ranging and near-far imaging using metasurfaces
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arXiv
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| Auteurs principaux: | , , , , |
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| Format: | Preprint |
| Publié: |
2026
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| _version_ | 1866911585018052608 |
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| author | Luo, Junjie Liu, Yuxuan Chen, Wei Ting Wang, Qing Guo, Qi |
| author_facet | Luo, Junjie Liu, Yuxuan Chen, Wei Ting Wang, Qing Guo, Qi |
| contents | We present a metasurface imaging system capable of simultaneously capturing two images at close range (1-2~cm) and an additional image at long range (about 40~cm) on a shared photosensor. The close-range image pair focuses at 1.4~cm and 2.0~cm, respectively, which forms a focal stack, enabling passive ranging with an accuracy of $\pm$1~mm from 12~mm to 20~mm through a computationally efficient depth-from-defocus algorithm for a simplified scenario. The entire system is compact, with a total track length of 15~mm, making it suitable for seamless integration into edge platforms for defense and other resource-constrained applications. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2604_10037 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Compact single-shot ranging and near-far imaging using metasurfaces Luo, Junjie Liu, Yuxuan Chen, Wei Ting Wang, Qing Guo, Qi Image and Video Processing Computer Vision and Pattern Recognition We present a metasurface imaging system capable of simultaneously capturing two images at close range (1-2~cm) and an additional image at long range (about 40~cm) on a shared photosensor. The close-range image pair focuses at 1.4~cm and 2.0~cm, respectively, which forms a focal stack, enabling passive ranging with an accuracy of $\pm$1~mm from 12~mm to 20~mm through a computationally efficient depth-from-defocus algorithm for a simplified scenario. The entire system is compact, with a total track length of 15~mm, making it suitable for seamless integration into edge platforms for defense and other resource-constrained applications. |
| title | Compact single-shot ranging and near-far imaging using metasurfaces |
| topic | Image and Video Processing Computer Vision and Pattern Recognition |
| url | https://arxiv.org/abs/2604.10037 |