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Proceedings Paper

Research on LASIS interferogram processing
Author(s): Fubei Wang; Jinsong Zhou; Juanjuan Jing; Qiongshui Wu; Wang Cheng
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Paper 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.

Paper Details

Date Published: 17 December 2015
PDF: 8 pages
Proc. SPIE 9811, MIPPR 2015: Multispectral Image Acquisition, Processing, and Analysis, 98110I (17 December 2015); doi: 10.1117/12.2205859
Show Author Affiliations
Fubei Wang, Wuhan Univ. (China)
Jinsong Zhou, Academy of Opto-Electronics (China)
Juanjuan Jing, Academy of Opto-Electronics (China)
Qiongshui Wu, Wuhan Univ. (China)
Wang Cheng, Academy of Opto-Electronics (China)

Published in SPIE Proceedings Vol. 9811:
MIPPR 2015: Multispectral Image Acquisition, Processing, and Analysis
Jinxue Wang; Zhiguo Cao; Jayaram K. Udupa; Henri Maître, Editor(s)

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