Spectral calibration for the hyperspectral imager based on the doped panel

Jiankang Zhou; Yiqun Ji; Yuheng Chen; Xinhua Chen; Weimin Shen

doi:10.1117/12.906579

30 November 2011 Spectral calibration for the hyperspectral imager based on the doped panel

Jiankang Zhou, Yiqun Ji, Yuheng Chen, Xinhua Chen, Weimin Shen

Proceedings Volume 8201, 2011 International Conference on Optical Instruments and Technology: Optoelectronic Measurement Technology and Systems; 820120 (2011) https://doi.org/10.1117/12.906579
Event: International Conference on Optical Instruments and Technology (OIT2011), 2011, Beijing, Beijing, China

Abstract

The routine spectral calibration is time-consuming and is difficult to use in the field. In this paper, we present a new rapid spectral calibration method based on the holmium oxide panel which has rich of absorbed feature. The ratio of the Spectalon panel signals to the holmium oxide panel signals can be used to calibrate the imaging spectrometer. The spectral resolution of the spectrometer and the wavelength position on the detector array are determined by curve fitting method including Gaussian response model setting and spectral convoluting. The iteration strategy and Pearson coefficient are mix used to confirm the correlation or similarity between the measured and modeled spectral curve. Spectral calibration experiment shows that new method base on the absorbed feature panel can fulfill the quick, accurate and repeatable spectral calibrating requirement.

Citation Download Citation

Jiankang Zhou, Yiqun Ji, Yuheng Chen, Xinhua Chen, and Weimin Shen "Spectral calibration for the hyperspectral imager based on the doped panel", Proc. SPIE 8201, 2011 International Conference on Optical Instruments and Technology: Optoelectronic Measurement Technology and Systems, 820120 (30 November 2011); https://doi.org/10.1117/12.906579

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