Research on LASIS interferogram processing

Fubei Wang; Jinsong Zhou; Juanjuan Jing; Qiongshui Wu; Wang Cheng

doi:10.1117/12.2205859

17 December 2015 Research on LASIS interferogram processing

Fubei Wang, Jinsong Zhou, Juanjuan Jing, Qiongshui Wu, Wang Cheng

Proceedings Volume 9811, MIPPR 2015: Multispectral Image Acquisition, Processing, and Analysis; 98110I (2015) https://doi.org/10.1117/12.2205859
Event: Ninth International Symposium on Multispectral Image Processing and Pattern Recognition (MIPPR2015), 2015, Enshi, China

Abstract

The images obtained by large aperture static imaging spectrometer (LASIS) are two dimensional images which contain interference information. The acquisition of different places’ interferogram needs to pushbroom the whole field of view. Because of the instability of the pushbroom platform, the original LASIS image registration is required, and the interferogram after registration is no longer consistent with equal interval interference. The spectral information will be severely distorted while a fast Fourier transform (FFT) is used for the direct extraction of the interferogram. In view of the above problems, this paper introduces a method based on phase correlation, and proposes an adaptive fast interpolation algorithm. Experimental results show that the proposed method can recover the spectral information well when the registration accuracy is sufficient.

Citation Download Citation

Fubei Wang, Jinsong Zhou, Juanjuan Jing, Qiongshui Wu, and Wang Cheng "Research on LASIS interferogram processing", Proc. SPIE 9811, MIPPR 2015: Multispectral Image Acquisition, Processing, and Analysis, 98110I (17 December 2015); https://doi.org/10.1117/12.2205859

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