Journal
REVIEW OF SCIENTIFIC INSTRUMENTS
Volume 93, Issue 11, Pages -Publisher
AIP Publishing
DOI: 10.1063/5.0119009
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Funding
- National Natural Science Foundation of China
- Aero Engine Corporation of China
- [12172222]
- [12002209]
- [HFZL2020CXY014-2]
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This letter discusses the design and implementation of a multi-wavelength light-field pyrometer, which utilizes a CMOS sensor to capture six-channel radiation images. By placing a filter array in front of the main lens, discrete wavelength and radiation intensity can be simultaneously recorded. Experimental results demonstrate the extraction of multi-channel radiation images from a raw light-field multispectral image, and the accurate recovery of a 2D temperature distribution using optimization algorithms.
This letter describes the design and implementation of a multi-wavelength light-field pyrometer, where six-channel radiation images were captured with one CMOS sensor. Such capability is achieved by placing a 2 x 3 filter array in front of the main lens of an unfocused light-field camera, such that discrete wavelength and radiation intensity can be simultaneously recorded. It demonstrates that through black-body furnace experiments, how multi-channel radiation images can be extracted from one raw light-field multispectral image, and how accurate 2D temperature distribution can be recovered by optimization algorithms. Published under an exclusive license by AIP Publishing.
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