Development of 490 -1600 nm hyperspectral imaging system based on flexible fiberscope

Herein, we report the world's first flexible fiberscope system that can perform hyperspectral imaging (HSI) from 490 to 1600 nm. The spectroscopy method uses a super continuum light source and an acousto-optic tunable filter to output a specific wavelength at 6 nm intervals. The HSI of the six resin samples were obtained and classified using a neural network under four wavelength ranges. The highest performance was achieved for the 1000–1600 nm range, with accuracy of 99.0%, recall of 94.6%, and specificity of 98.8%. The proposed system has potential applications in the medical and industrial fields for noninvasive component analysis.