Research on alteration information extraction based on GF-5 VIMS

Yuantao Zhang; Zhangfa Yu; Wei Pan

doi:10.1117/12.2586272

12 March 2021 Research on alteration information extraction based on GF-5 VIMS

Yuantao Zhang, Zhangfa Yu, Wei Pan

Proceedings Volume 11763, Seventh Symposium on Novel Photoelectronic Detection Technology and Applications; 117631B (2021) https://doi.org/10.1117/12.2586272
Event: Seventh Symposium on Novel Photoelectronic Detection Technology and Application 2020, 2020, Kunming, China

Abstract

In order to study the alteration extraction method and effect of GF-5 Visual and infrared spectral imager (VIMS), this image was used as the data source. On the basis of analyzing the spectral characteristics of typical altered minerals, the principal component analysis (PCA) method was used to extract iron-stained and hydroxyl alteration, and the results were compared with those from Landsat 5 TM image. The results show that: the alteration information extracted from VIMS image is consistent with the alteration extracted from TM image, and it is more accurate; the quality of VIMS image is worse than that of TM image, which affects the result of alteration extraction. Therefore, attention should be paid to the selection of VIMS image in practical application.

Citation Download Citation

Yuantao Zhang, Zhangfa Yu, and Wei Pan "Research on alteration information extraction based on GF-5 VIMS", Proc. SPIE 11763, Seventh Symposium on Novel Photoelectronic Detection Technology and Applications, 117631B (12 March 2021); https://doi.org/10.1117/12.2586272

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