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Related papers: Manifold Learning for Hyperspectral Images

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Hyperspectral image (HSI) with narrow spectral bands can capture rich spectral information, but it sacrifices its spatial resolution in the process. Many machine-learning-based HSI super-resolution (SR) algorithms have been proposed…

Computer Vision and Pattern Recognition · Computer Science 2021-11-16 Zhongyang Zhang , Zhiyang Xu , Zia Ahmed , Asif Salekin , Tauhidur Rahman

Diffusion has shown great success in improving accuracy of unsupervised image retrieval systems by utilizing high-order structures of image manifold. However, existing diffusion methods suffer from three major limitations: 1) they usually…

Computer Vision and Pattern Recognition · Computer Science 2020-06-15 Zhiyong Dou , Haotian Cui , Lin Zhang , Bo Wang

Hyperspectral imaging (HSI) provides rich spatial-spectral information but remains costly to acquire due to hardware limitations and the difficulty of reconstructing three-dimensional data from compressed measurements. Although compressive…

Computer Vision and Pattern Recognition · Computer Science 2025-10-03 Yi Ai , Yuanhao Cai , Yulun Zhang , Xiaokang Yang

Deep subspace clustering methods are now prominent in clustering, typically using fully connected networks and a self-representation loss function. However, these methods often struggle with overfitting and lack interpretability. In this…

Computer Vision and Pattern Recognition · Computer Science 2024-06-24 Xianlu Li , Nicolas Nadisic , Shaoguang Huang , Aleksandra Pižurica

Hyperspectral image (HSI) classification is challenging due to spatial variability caused by complex imaging conditions. Prior methods suffer from limited representation ability, as they train specially designed networks from scratch on…

Computer Vision and Pattern Recognition · Computer Science 2023-05-17 Di Wang , Jing Zhang , Bo Du , Liangpei Zhang , Dacheng Tao

Hyperspectral image super-resolution addresses the problem of fusing a low-resolution hyperspectral image (LR-HSI) and a high-resolution multispectral image (HR-MSI) to produce a high-resolution hyperspectral image (HR-HSI). Tensor analysis…

Numerical Analysis · Mathematics 2022-12-07 Diyi Jin , Jianjun Liu , Jinlong Yang , Zebin Wu

Convolutional neural networks (CNN) have made significant advances in hyperspectral image (HSI) classification. However, standard convolutional kernel neglects the intrinsic connections between data points, resulting in poor region…

Computer Vision and Pattern Recognition · Computer Science 2020-01-22 Tinghuai Wang , Guangming Wang , Kuan Eeik Tan , Donghui Tan

Deep learning based landcover classification algorithms have recently been proposed in literature. In hyperspectral images (HSI) they face the challenges of large dimensionality, spatial variability of spectral signatures and scarcity of…

Computer Vision and Pattern Recognition · Computer Science 2017-06-28 Anirban Santara , Kaustubh Mani , Pranoot Hatwar , Ankit Singh , Ankur Garg , Kirti Padia , Pabitra Mitra

Hyperspectral images (HSI) classification is a high technical remote sensing software. The purpose is to reproduce a thematic map . The HSI contains more than a hundred hyperspectral measures, as bands (or simply images), of the concerned…

Computer Vision and Pattern Recognition · Computer Science 2022-11-18 Elkebir Sarhrouni , Ahmed Hammouch , Driss Aboutajdine

The joint hyperspectral image (HSI) and LiDAR data classification aims to interpret ground objects at more detailed and precise level. Although deep learning methods have shown remarkable success in the multisource data classification task,…

Image and Video Processing · Electrical Eng. & Systems 2023-02-08 Meng Wang , Feng Gao , Junyu Dong , Heng-Chao Li , Qian Du

Manifold learning is used for dimensionality reduction, with the goal of finding a projection subspace to increase and decrease the inter- and intraclass variances, respectively. However, a bottleneck for subspace learning methods often…

Machine Learning · Computer Science 2021-05-26 Parisa Abdolrahim Poorheravi , Vincent Gaudet

In this paper, we aim at tackling a general but interesting cross-modality feature learning question in remote sensing community --- can a limited amount of highly-discrimin-ative (e.g., hyperspectral) training data improve the performance…

Computer Vision and Pattern Recognition · Computer Science 2019-12-19 Danfeng Hong , Naoto Yokoya , Nan Ge , Jocelyn Chanussot , Xiao Xiang Zhu

Due to the limitations of hyperspectral imaging systems, hyperspectral imagery (HSI) often suffers from poor spatial resolution, thus hampering many applications of the imagery. Hyperspectral super-resolution refers to fusing HSI and MSI to…

Image and Video Processing · Electrical Eng. & Systems 2020-07-29 Ke Zheng , Lianru Gao , Wenzhi Liao , Danfeng Hong , Bing Zhang , Ximin Cui , Jocelyn Chanussot

Graph Neural Networks (GNNs) have gained popularity in various learning tasks, with successful applications in fields like molecular biology, transportation systems, and electrical grids. These fields naturally use graph data, benefiting…

Machine Learning · Computer Science 2024-09-23 Caio F. Deberaldini Netto , Zhiyang Wang , Luana Ruiz

Supervised manifold learning methods learn data representations by preserving the geometric structure of data while enhancing the separation between data samples from different classes. In this work, we propose a theoretical study of…

Machine Learning · Computer Science 2018-01-08 Elif Vural , Christine Guillemot

We aim to improve segmentation through the use of machine learning tools during region agglomeration. We propose an active learning approach for performing hierarchical agglomerative segmentation from superpixels. Our method combines…

Computer Vision and Pattern Recognition · Computer Science 2015-03-13 Juan Nunez-Iglesias , Ryan Kennedy , Toufiq Parag , Jianbo Shi , Dmitri B. Chklovskii

Spatial Transcriptomics (ST) merges the benefits of pathology images and gene expression, linking molecular profiles with tissue structure to analyze spot-level function comprehensively. Predicting gene expression from histology images is a…

Computer Vision and Pattern Recognition · Computer Science 2025-12-01 Chen Zhang , Yilu An , Ying Chen , Hao Li , Xitong Ling , Lihao Liu , Junjun He , Yuxiang Lin , Zihui Wang , Rongshan Yu

Hyperspectral image (HSI) super-resolution without additional auxiliary image remains a constant challenge due to its high-dimensional spectral patterns, where learning an effective spatial and spectral representation is a fundamental…

Image and Video Processing · Electrical Eng. & Systems 2021-12-21 Kaiwei Zhang

Analyzing high-dimensional data with manifold learning algorithms often requires searching for the nearest neighbors of all observations. This presents a computational bottleneck in statistical manifold learning when observations of…

Machine Learning · Computer Science 2022-03-11 Fan Cheng , Anastasios Panagiotelis , Rob J Hyndman

The Hyperspectral image (HSI) contains several hundred bands of the same region called the Ground Truth (GT). The bands are taken in juxtaposed frequencies, but some of them are noisily measured or contain no information. For the…

Computer Vision and Pattern Recognition · Computer Science 2022-10-31 Hasna Nhaila , Maria Merzouqi , Elkebir Sarhrouni , Ahmed Hammouch