A Variational Pansharpening Approach Based on Reproducible Kernel Hilbert Space and Heaviside Function

作者：Deng, Liang-Jian; Vivone, Gemine; Guo, Weihong^*; Dalla Mura, Mauro; Chanussot, Jocelyn

来源：IEEE Transactions on Image Processing, 2018, 27(9): 4330-4344.

DOI：10.1109/TIP.2018.2839531

• Pansharpening
• remote sensing image
• sparse model
• RKHS
• Heaviside
• Toeplitz sparsity
• alternating direction method of multipliers

Pansharpening is an important application in remote sensing image processing. It can increase the spatial-resolution of a multispectral image by fusing it with a high spatial-resolution panchromatic image in the same scene, which brings great favor for subsequent processing such as recognition, detection, etc. In this paper, we propose a continuous modeling and sparse optimization based method for the fusion of a panchromatic image and a multispectral image. The proposed model is mainly based on reproducing kernel Hilbert space (RKHS) and approximated Heaviside AHF). In addition, we also propose a Toeplitz sparse term for representing the correlation of adjacent bands. The model is convex and solved by the alternating direction method of multipliers which guarantees the convergence of the proposed method. Extensive experiments on many real datasets collected by different sensors demonstrate the effectiveness of the proposed technique as compared with several state-of-the-art pansharpening approaches.

• 出版日期2018-9
• 单位电子科技大学