Spectral filter selection for spectral reflectance recovery

Shijun Niu; Guangyuan Wu; Yifan Xiong

doi:10.1117/12.2637625

13 May 2022 Spectral filter selection for spectral reflectance recovery

Shijun Niu, Guangyuan Wu, Yifan Xiong

Proceedings Volume 12248, Second International Conference on Sensors and Information Technology (ICSI 2022); 122481B (2022) https://doi.org/10.1117/12.2637625
Event: 2nd International Conference on Sensors and Information Technology (ICSI 2022), 2022, Nanjing, China

Abstract

The accuracy of spectral recovery is directly affected by the spectral filter. Clarifying which parameters of the color filter will affect the spectral reconstruction accuracy can help us select the appropriate color filter and improve the reconstruction accuracy. Gaussian curve is used to simulate the spectral sensitivity curve of camera CCD channel. Taking color difference, goodness of fit coefficient and root mean square error as the result evaluation parameters, three, five and seven spectral filters with bandwidth of 20-60nm are selected for experiments. The influence of the number and bandwidth of camera channels on the spectral recovery results is explored by calculating the spectral recovery accuracy of Munsell spectral data set. The experimental results show that the number and bandwidth of spectral filters will affect the spectral recovery results.

Citation Download Citation

Shijun Niu, Guangyuan Wu, and Yifan Xiong "Spectral filter selection for spectral reflectance recovery", Proc. SPIE 12248, Second International Conference on Sensors and Information Technology (ICSI 2022), 122481B (13 May 2022); https://doi.org/10.1117/12.2637625

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