**SDTGAN: Generation Adversarial Network for Spectral Domain Translation of Remote Sensing Images of the Earth Background Based on Shared Latent Domain**

**Biao Wang 1, Lingxuan Zhu 2,\*, Xing Guo 1, Xiaobing Wang 2 and Jiaji Wu 1**


**Abstract:** The synthesis of spectral remote sensing images of the Earth's background is affected by various factors such as the atmosphere, illumination and terrain, which makes it difficult to simulate random disturbance and real textures. Based on the shared latent domain hypothesis and generation adversarial network, this paper proposes the SDTGAN method to mine the correlation between the spectrum and directly generate target spectral remote sensing images of the Earth's background according to the source spectral images. The introduction of shared latent domain allows multispectral domains connect to each other without the need to build a one-to-one model. Meanwhile, additional feature maps are introduced to fill in the lack of information in the spectrum and improve the geographic accuracy. Through supervised training with a paired dataset, cycle consistency loss, and perceptual loss, the uniqueness of the output result is guaranteed. Finally, the experiments on the Fengyun satellite observation data show that the proposed SDTGAN method performs better than the baseline models in remote sensing image spectrum translation.

**Keywords:** remote sensing image; spectral domain translation; generative adversarial network; paired translation
