Hyperspectral image fusion by the similarity measure-based variational method

Zhenwei Shi; Zhenyu An; Zhiguo Jiang

doi:10.1117/1.3600767

1 July 2011 Hyperspectral image fusion by the similarity measure-based variational method

Zhenwei Shi, Zhenyu An, Zhiguo Jiang

Author Affiliations +

Funded by: National Natural Science Foundation of China, 973 Program, Fundamental Research Funds for the Central Universities, Beijing Natural Science Foundation, Beijing Municipal Natural Science Foundation, Beijing Natural Science Foundation (Non-negative Component Analysis for Hyperspectral Imagery Unmixing)

Optical Engineering, Vol. 50, Issue 7, 077006 (July 2011). https://doi.org/10.1117/1.3600767

Abstract

Hyperspectral remote sensing is widely used in many fields suchas agriculture, military detection, mineral exploration, and so on. Hyperspectral data has very high spectral resolution, but much lower spatial resolution than the data obtained by other types of sensors. The low spatial resolution restrains its wide applications. On the contrary, we easily obtain images with high spatial resolution but insufficient spectral resolution (like panchromatic images). Naturally, people expect to obtain images that have high spatial and spectral resolution at the same time by the hyperspectral image fusion. In this paper, a similarity measure-based variational method is proposed to achieve the fusion process. The main idea is to transform the image fusion problem to an optimization problem based on the variational model. We first establish a fusion model that constrains the spatial and spectral information of the original data at the same time, then use the split bregman iteration to obtain the final fused data. Also, we analyze the convergence of the method. The experiments on the synthetic and real data show that the fusion method preserves the information of the original images efficiently, especially on the spectral information.

©(2011) Society of Photo-Optical Instrumentation Engineers (SPIE)

Citation Download Citation

Zhenwei Shi, Zhenyu An, and Zhiguo Jiang "Hyperspectral image fusion by the similarity measure-based variational method," Optical Engineering 50(7), 077006 (1 July 2011). https://doi.org/10.1117/1.3600767

Published: 1 July 2011

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