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author:

Xu, S. (Xu, S..) [1] (Scholars:徐圣瑶) | Chi, C. (Chi, C..) [2] | Zheng, S. (Zheng, S..) [3] | Chang, W. (Chang, W..) [4] (Scholars:常卫杰) | Huang, F. (Huang, F..) [5]

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Scopus

Abstract:

RGBD cameras that capture color and depth information have a wide range of applications such as robotics, autonomous driving, and cons umer electronics. Traditional RGBD imaging usually requires multi-cameras or extra active illumination which inevitably leads to bulky or complex imaging systems, hindering the growing demand for compact integrated optical devices. Optical metasurface have emerged as a powerful substitute to the traditional diffractive optical element due to the superior dispersion manipulation and extremely compact size. However, it is still a great challenge to realize a single-shot monocular metasurface camera, due to the strong and unignorable wavelength-dependent aberrations. In this work, we demonstrate an end-to-end compact single-shot monocular metasurface camera for RGBD imaging. By utilizing end-to-end joint optimization framework to learn metasurface physical structure in conjunction with deep neural networks reconstruction algorithm, the multidimensional light field information RGBD of a scene in a single shot can be reconstructed within a depth range of 0.5 m. Compared with traditional lens-based RGBD imaging, our proposed metasurface-based imaging achieves an improvement of about 2 dB in chromatic imaging and a 4 times increase in depth estimation accuracy. Our proposed scheme could facilitate the further development of the intelligent computational meta-optics in diverse fields ranging from machine vision to biomedical imaging. © 2024 Elsevier B.V.

Keyword:

Computational imaging End-to end joint optimization Metasurface RGBD imaging

Community:

  • [ 1 ] [Xu S.]College of Mechanical Engineering and Automation, Fuzhou University, Fuzhou, 350108, China
  • [ 2 ] [Chi C.]College of Mechanical Engineering and Automation, Fuzhou University, Fuzhou, 350108, China
  • [ 3 ] [Zheng S.]School of Optical and Electronic Information, Huazhong University of Science and Technology, Hubei, Wuhan, 430074, China
  • [ 4 ] [Chang W.]College of Mechanical Engineering and Automation, Fuzhou University, Fuzhou, 350108, China
  • [ 5 ] [Huang F.]College of Mechanical Engineering and Automation, Fuzhou University, Fuzhou, 350108, China

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Source :

Optics Communications

ISSN: 0030-4018

Year: 2024

Volume: 566

2 . 2 0 0

JCR@2023

CAS Journal Grade:3

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ESI Highly Cited Papers on the List: 0 Unfold All

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Chinese Cited Count:

30 Days PV: 3

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