Mr. Chengchao Li Profile

Chengchao Li

at China Academy of Space Technology

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Proceedings Article | 19 October 2023 Poster + Paper

A remote sensing satellite image compression method based on conditional generative adversarial network

Kan Cheng, Yafang Zou, Yuting Zhao, Hao Jin, Chengchao Li

Proceedings Volume 12733, 1273314 (2023) https://doi.org/10.1117/12.2683879

KEYWORDS: Image compression, Image quality, Image restoration, Remote sensing, Satellites, Deep learning

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With the sharp increase of images on satellites, the efficiency of satellite-to-ground data transmission has become a bottleneck that restricts the effectiveness of remote sensing satellites. To alleviate the pressure of data transmission, we conducted in-depth research on remote sensing satellite image compression technology. Traditional methods and existing deep learning methods are prone to losing detailed information when dealing with remote sensing satellite images with complex textures and rich details. Given that Generative Adversarial Networks (GAN) have advantages in texture generation and detail restoration, we propose a remote sensing satellite image compression method based on conditional GAN. Our main innovations are: 1) proposing a compression framework for remote sensing satellite images based on conditional GAN, which improves the reconstruction quality through adversarial learning between the conditional generator and discriminator. 2) introducing the Laplacian of Gaussian loss to train the model, which emphasizes details such as edges, contours, and textures in remote sensing images. 3) introducing multiple perceptual metrics to calculate the similarity between images, which comprehensively evaluates the quality of reconstructed images. Experimental results show that our method has better visual effects and objective evaluation indicators than traditional methods and existing deep learning methods at the same compression ratio.

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