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Hyperspectral imaging (HSI) is a critical technique for fine-grained land-use and land-cover (LULC) mapping. However, the inherent heterogeneity of HSI data, particularly the variation in spectral channels across sensors, has long…

Computer Vision and Pattern Recognition · Computer Science 2026-02-25 Renjie Ji , Xue Wang , Chao Niu , Wen Zhang , Yong Mei , Kun Tan

Generating semantic segmentation datasets has consistently been laborious and time-consuming, particularly in the context of large models or specialized domains(i.e. Medical Imaging or Remote Sensing). Specifically, large models necessitate…

Computer Vision and Pattern Recognition · Computer Science 2023-10-03 Jiaru Jia , Mingzhe Liu , Jiake Xie , Xin Chen , Hong Zhang , Feixiang Zhao , Aiqing Yang

Recently, transformers have shown promising performance in learning graph representations. However, there are still some challenges when applying transformers to real-world scenarios due to the fact that deep transformers are hard to train…

Machine Learning · Computer Science 2022-05-13 Sixiao Zhang , Hongxu Chen , Haoran Yang , Xiangguo Sun , Philip S. Yu , Guandong Xu

Distributional shifts between training and inference time data remain a central challenge in machine learning, often leading to poor performance. It motivated the study of principled approaches for domain alignment, such as optimal…

Machine Learning · Computer Science 2026-03-09 Abdel Djalil Sad Saoud , Fred Maurice Ngolè Mboula , Hanane Slimani

We introduce Region-Adaptive Learned Hierarchical Encoding (RALHE) for 3D Gaussian Splatting (3DGS) data. While 3DGS has recently become popular for novel view synthesis, the size of trained models limits its deployment in…

Image and Video Processing · Electrical Eng. & Systems 2025-10-28 Shashank N. Sridhara , Birendra Kathariya , Fangjun Pu , Peng Yin , Eduardo Pavez , Antonio Ortega

Hyperspectral imaging provides detailed spectral information, offering significant potential for monitoring greenhouse gases like CH4 and NO2. However, its application is constrained by limited spatial coverage and infrequent revisit times.…

Is there really much more to say about sparse autoencoders (SAEs)? Autoencoders in general, and SAEs in particular, represent deep architectures that are capable of modeling low-dimensional latent structure in data. Such structure could…

Machine Learning · Computer Science 2025-06-09 Yin Lu , Xuening Zhu , Tong He , David Wipf

Utilizing hyperspectral remote sensing technology enables the extraction of fine-grained land cover classes. Typically, satellite or airborne images used for training and testing are acquired from different regions or times, where the same…

Computer Vision and Pattern Recognition · Computer Science 2026-01-29 Yuxiang Zhang , Wei Li , Wen Jia , Mengmeng Zhang , Ran Tao , Shunlin Liang

The Masked Autoencoder (MAE) has recently demonstrated effectiveness in pre-training Vision Transformers (ViT) for analyzing natural images. By reconstructing complete images from partially masked inputs, the ViT encoder gathers contextual…

Image and Video Processing · Electrical Eng. & Systems 2025-06-03 Badhan Kumar Das , Gengyan Zhao , Han Liu , Thomas J. Re , Dorin Comaniciu , Eli Gibson , Andreas Maier

Autoencoders can be challenged by spatially non-uniform sampling of image content. This is common in medical imaging, biology, and physics, where informative patterns occur rarely at specific image coordinates, as background dominates these…

Computer Vision and Pattern Recognition · Computer Science 2026-04-03 Alejandro Castañeda Garcia , Jan van Gemert , Daan Brinks , Nergis Tömen

Earth observing satellites carrying multi-spectral sensors are widely used to monitor the physical and biological states of the atmosphere, land, and oceans. These satellites have different vantage points above the earth and different…

Computer Vision and Pattern Recognition · Computer Science 2020-10-14 Thomas Vandal , Daniel McDuff , Weile Wang , Andrew Michaelis , Ramakrishna Nemani

Synthetic hyperspectral image (HSI) generation is essential for large-scale simulation, algorithm development, and mission design, yet traditional radiative transfer models remain computationally expensive and often limited to…

Computer Vision and Pattern Recognition · Computer Science 2026-03-24 Chedly Ben Azizi , Claire Guilloteau , Gilles Roussel , Matthieu Puigt

Kilometer-scale Earth system models are essential for capturing local climate change. However, these models are computationally expensive and produce petabyte-scale outputs, which limits their utility for applications such as probabilistic…

Machine Learning · Computer Science 2026-01-22 Johannes Meuer , Maximilian Witte , Étiénne Plésiat , Thomas Ludwig , Christopher Kadow

Graph-based semi-supervised learning methods, which deal well with the situation of limited labeled data, have shown dominant performance in practical applications. However, the high dimensionality of hyperspectral images (HSI) makes it…

Computer Vision and Pattern Recognition · Computer Science 2021-03-26 Yanling Miao , Qi Wang , Mulin Chen , Xuelong Li

Self-supervised frameworks for representation learning have recently stirred up interest among the remote sensing community, given their potential to mitigate the high labeling costs associated with curating large satellite image datasets.…

Computer Vision and Pattern Recognition · Computer Science 2025-03-25 Hugo Chan-To-Hing , Bharadwaj Veeravalli

Nowadays, modern Earth Observation systems continuously collect massive amounts of satellite information. The unprecedented possibility to acquire high resolution Satellite Image Time Series (SITS) data (series of images with high revisit…

Computer Vision and Pattern Recognition · Computer Science 2020-05-01 Dino Ienco , Yawogan Jean Eudes Gbodjo , Roberto Interdonato , Raffaele Gaetano

Surficial geologic (SG) maps are essential for understanding surface processes and supporting infrastructure planning, but current workflows are labor-intensive and difficult to scale. We introduce EarthScape, an AI-ready multimodal dataset…

Computer Vision and Pattern Recognition · Computer Science 2026-03-09 Matthew Massey , Nusrat Munia , Abdullah-Al-Zubaer Imran

Accurate atmospheric profiles from remote sensing instruments such as Doppler Lidar, Radar, and radiometers are frequently corrupted by low-SNR (Signal to Noise Ratio) gates, range folding, and spurious discontinuities. Traditional gap…

Machine Learning · Computer Science 2026-01-15 Anurup Naskar , Nathanael Zhixin Wong , Sara Shamekh

The immense volume of data generated by Earth observation (EO) satellites presents significant challenges in transmitting it to Earth over rate-limited satellite-to-ground communication links. This paper presents an efficient downlink…

Signal Processing · Electrical Eng. & Systems 2024-12-17 Van-Phuc Bui , Shashi Raj Pandey , Israel Leyva-Mayorga , Petar Popovski

Unsupervised visual anomaly detection conveys practical significance in many scenarios and is a challenging task due to the unbounded definition of anomalies. Moreover, most previous methods are application-specific, and establishing a…

Computer Vision and Pattern Recognition · Computer Science 2022-11-02 Haiming Yao , Xue Wang , Wenyong Yu