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author:

Xu, Shengyao (Xu, Shengyao.) [1] | Chi, Chuirong (Chi, Chuirong.) [2] | Zheng, Shuang (Zheng, Shuang.) [3] | Chang, Weijie (Chang, Weijie.) [4] | Huang, Feng (Huang, Feng.) [5]

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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:

Cameras Computational Imaging Deep neural networks Medical imaging

Community:

  • [ 1 ] [Xu, Shengyao]College of Mechanical Engineering and Automation, Fuzhou University, Fuzhou; 350108, China
  • [ 2 ] [Chi, Chuirong]College of Mechanical Engineering and Automation, Fuzhou University, Fuzhou; 350108, China
  • [ 3 ] [Zheng, Shuang]School of Optical and Electronic Information, Huazhong University of Science and Technology, Hubei, Wuhan; 430074, China
  • [ 4 ] [Chang, Weijie]College of Mechanical Engineering and Automation, Fuzhou University, Fuzhou; 350108, China
  • [ 5 ] [Huang, Feng]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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