Affiliation:
1. School of Computer Science and Engineering Wuhan Institute of Technology Wuhan 430205 China
2. Hubei Key Laboratory of Intelligent Robot Wuhan Institute of Technology Wuhan 430205 China
Abstract
In this study, a multispectral light‐field imaging system is developed using nematic liquid‐crystal microlens arrays (LC‐MLAs). The system solves the spectral under‐sampling and complex system issues in existing light‐field and spectral cameras. The LC‐MLA is the core optical element of the snapshot imaging system. No dispersion or customized scanning machinery is required to obtain multispectral light fields. Deep learning technology is utilized to reconstruct spectral information from raw data. In the experiments, it is demonstrated that the proposed method efficiently reconstructs multispectral data with 10 nm accuracy in the visible wavelength range of 400–700 nm. The system offers high precision, simple equipment, and relatively low cost without additional dispersion and filtering devices.
Funder
National Natural Science Foundation of China
Hubei Provincial Key Laboratory of Intelligent Robot
Hubei Provincial Department of Education
Wuhan Institute of Technology
Foundation for Innovative Research Groups of Hubei Province of China
Subject
Condensed Matter Physics,General Materials Science