计算机科学
人工智能
图像分辨率
特征(语言学)
特征提取
空间频率
频域
失真(音乐)
图像融合
计算机视觉
模式识别(心理学)
遥感
图像(数学)
带宽(计算)
电信
地质学
光学
放大器
哲学
语言学
物理
作者
Jiarui Wang,Yuting Lu,Shunzhou Wang,Binglu Wang,Xiaoxu Wang,Teng Long
出处
期刊:IEEE Transactions on Geoscience and Remote Sensing
[Institute of Electrical and Electronics Engineers]
日期:2024-01-01
卷期号:62: 1-13
被引量:7
标识
DOI:10.1109/tgrs.2024.3357173
摘要
Super-resolution neural networks have recently achieved great progress in restoring high-quality remote sensing images at low zoom-in magnitude. However, these networks often struggle with challenges like shape distortion and blurring effects due to the severe absence of structure and texture details in large-factor remote sensing image super-resolution. Addressing these challenges, we propose a novel Two-Stage Spatial-Frequency Joint Learning Network (TSFNet). TSFNet innovatively merges insights from both spatial and frequency domains, enabling a progressive refinement of super-resolution results from coarse to fine. Specifically, different from existing frequency feature extraction approaches, we design a novel amplitude-guided-phase adaptive filter module to explicitly disentangle and sequentially recover both the global common image degradation and specific structural degradation in the frequency domain. Additionally, we introduce the cross-stage feature fusion design to enhance feature representation and selectively propagate useful information from stage one to stage two. Quantitative and qualitative experimental results demonstrate that our proposed method surpasses state-of-the-art techniques in large-factor remote sensing image super-resolution. Our code is available at https://github.com/likakakaka/TSFNet_RSISR.
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