arXiv:2604.12807cs.CVcs.AI2026-04中稿 · CVPR

轻量级CNN模型实现卫星图像高效修复,适合星上实时处理。

Rethinking Satellite Image Restoration for Onboard AI: A Lightweight Learning-Based Approach

论文配图:Rethinking Satellite Image Restoration for Onboard AI: A Lightweight Learning-Based Approach
图 1 · 摘自论文原文
  • 采用轻量残差卷积网络,基于模拟数据训练,无需生成式结构。
  • 相比传统方法提升6.9dB PSNR,下游检测任务最高增5.1% mAP@50。
  • 可在FPGA上部署,延迟降低41倍,适合星载系统实际应用。

卫星图像修复旨在补偿成像系统与采集条件引起的退化(如噪声和模糊)。作为基础预处理步骤,修复质量直接影响地面产品生成和新兴的星上AI应用。传统的基于物理模型的串联修复流程计算量大、速度慢,难以适应星上环境。本文提出ConvBEERS:一种面向空间的轻量级嵌入式高效修复模型,探究仅用轻量非生成式残差卷积网络,在模拟卫星数据上训练后,能否在多种工况下达到或超越传统地面处理流程。在模拟数据集和真实Pleiades-HR影像上的实验表明,该方法实现了有竞争力的图像质量,PSNR提升+6.9dB。下游目标检测任务评估显示,修复显著提升性能,最高达+5.1% mAP@50。此外,在Xilinx Versal VCK190 FPGA上的成功部署验证了其星上可行性,相比传统流程延迟降低约41倍。结果表明,使用轻量CNN可在满足真实星载约束的前提下,实现优异的修复效果。

原文摘要 · Abstract (English)

Satellite image restoration aims to improve image quality by compensating for degradations (e.g., noise and blur) introduced by the imaging system and acquisition conditions. As a fundamental preprocessing step, restoration directly impacts both ground-based product generation and emerging onboard AI applications. Traditional restoration pipelines based on sequential physical models are computationally intensive and slow, making them unsuitable for onboard environments. In this paper, we introduce ConvBEERS: a Convolutional Board-ready Embedded and Efficient Restoration model for Space to investigate whether a light and non-generative residual convolutional network, trained on simulated satellite data, can match or surpass a traditional ground-processing restoration pipeline across multiple operating conditions. Experiments conducted on simulated datasets and real Pleiades-HR imagery demonstrate that the proposed approach achieves competitive image quality, with a +6.9dB PSNR improvement. Evaluation on a downstream object detection task demonstrates that restoration significantly improves performance, with up to +5.1% mAP@50. In addition, successful deployment on a Xilinx Versal VCK190 FPGA validates its practical feasibility for satellite onboard processing, with a ~41x reduction in latency compared to the traditional pipeline. These results demonstrate the relevance of using lightweight CNNs to achieve competitive restoration quality while addressing real-world constraints in spaceborne systems.

图像修复星上计算轻量模型FPGA部署

Thank you to arXiv for use of its open access interoperability. PaperDance 不是 arXiv 官方产品;中文卡片由大模型生成,请以原文为准。