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Removing the noise and improving the visual quality of hyperspectral images (HSIs) is challenging in academia and industry. Great efforts have been made to leverage local, global or spectral context information for HSI denoising. However,…

Image and Video Processing · Electrical Eng. & Systems 2023-04-20 Haodong Pan , Feng Gao , Junyu Dong , Qian Du

The remote sensing image change detection task is an essential method for large-scale monitoring. We propose HSANet, a network that uses hierarchical convolution to extract multi-scale features. It incorporates hybrid self-attention and…

Computer Vision and Pattern Recognition · Computer Science 2025-04-22 Chengxi Han , Xiaoyu Su , Zhiqiang Wei , Meiqi Hu , Yichu Xu

Hyperspectral image (HSI) denoising is a crucial preprocessing procedure to improve the performance of the subsequent HSI interpretation and applications. In this paper, a novel deep learning-based method for this task is proposed, by…

Computer Vision and Pattern Recognition · Computer Science 2018-08-14 Qiangqiang Yuan , Qiang Zhang , Jie Li , Huanfeng Shen , Liangpei Zhang

Hyperspectral image (HSI) denoising is an essential procedure for HSI applications. Unfortunately, the existing Transformer-based methods mainly focus on non-local modeling, neglecting the importance of locality in image denoising.…

Image and Video Processing · Electrical Eng. & Systems 2024-08-05 Hao Liang , Chengjie , Kun Li , Xin Tian

Hyperspectral images (HSIs) have been widely used in a variety of applications thanks to the rich spectral information they are able to provide. Among all HSI processing tasks, HSI denoising is a crucial step. Recently, deep learning-based…

Image and Video Processing · Electrical Eng. & Systems 2022-02-16 Zhiqiang Wang , Zhenfeng Shao , Xiao Huang , Jiaming Wang , Tao Lu , Sihang Zhang

Hyperspectral image (HSI) denoising is of crucial importance for many subsequent applications, such as HSI classification and interpretation. In this paper, we propose an attention-based deep residual network to directly learn a mapping…

Image and Video Processing · Electrical Eng. & Systems 2020-03-05 Yongsen Zhao , Deming Zhai , Junjun Jiang , Xianming Liu

Deep neural networks face several challenges in hyperspectral image classification, including high-dimensional data, sparse distribution of ground objects, and spectral redundancy, which often lead to classification overfitting and limited…

Computer Vision and Pattern Recognition · Computer Science 2025-06-12 Guandong Li , Mengxia Ye

In image denoising, deep convolutional neural networks (CNNs) can obtain favorable performance on removing spatially invariant noise. However, many of these networks cannot perform well on removing the real noise (i.e. spatially variant…

Image and Video Processing · Electrical Eng. & Systems 2023-05-09 Wencong Wu , Shijie Liu , Yi Zhou , Yungang Zhang , Yu Xiang

Hyperspectral image denoising faces the challenge of multi-dimensional coupling of spatially non-uniform noise and spectral correlation interference. Existing deep learning methods mostly focus on RGB images and struggle to effectively…

Computer Vision and Pattern Recognition · Computer Science 2025-07-29 Haoyue Li , Di Wu

Hyperspectral image (HSI) classification faces critical challenges, including high spectral dimensionality, complex spectral-spatial correlations, and limited training samples with severe class imbalance. While CNNs excel at local feature…

Computer Vision and Pattern Recognition · Computer Science 2025-12-22 Asmit Bandyopadhyay , Anindita Das Bhattacharjee , Rakesh Das

Convolutional Neural Networks (CNN) are more suitable, indeed. However, fixed kernel sizes make traditional CNN too specific, neither flexible nor conducive to feature learning, thus impacting on the classification accuracy. The convolution…

Computer Vision and Pattern Recognition · Computer Science 2022-01-05 Muhammad Ahmad , Adil Mehmood Khan , Manuel Mazzara , Salvatore Distefano , Swalpa Kumar Roy , Xin Wu

Hyperspectral image is unique and useful for its abundant spectral bands, but it subsequently requires extra elaborated treatments of the spatial-spectral correlation as well as the global correlation along the spectrum for building a…

Image and Video Processing · Electrical Eng. & Systems 2023-04-04 Zeqiang Lai , Ying Fu

Hyperspectral images (HSIs) have been widely applied in many fields, such as military, agriculture, and environment monitoring. Nevertheless, HSIs commonly suffer from various types of noise during acquisition. Therefore, denoising is…

Image and Video Processing · Electrical Eng. & Systems 2021-04-07 Yan Gao , Feng Gao , Junyu Dong

Hyperspectral images (HSIs) are susceptible to various noise factors leading to the loss of information, and the noise restricts the subsequent HSIs object detection and classification tasks. In recent years, learning-based methods have…

Neural and Evolutionary Computing · Computer Science 2020-08-18 Yuqiao Liu , Yanan Sun , Bing Xue , Mengjie Zhang

Compared to natural images, hyperspectral images (HSIs) consist of a large number of bands, with each band capturing different spectral information from a certain wavelength, even some beyond the visible spectrum. These characteristics of…

Image and Video Processing · Electrical Eng. & Systems 2023-09-18 Orhan Torun , Seniha Esen Yuksel , Erkut Erdem , Nevrez Imamoglu , Aykut Erdem

Hyperspectral image super-resolution is essential for enhancing the spatial fidelity of HSI data, yet existing deep learning methods often struggle with substantial spectral redundancy and the limited non-linear modeling capacity of…

Image and Video Processing · Electrical Eng. & Systems 2026-05-01 Tengya Zhang , Feng Gao , Lin Qi , Junyu Dong , Qian Du

Low-dose computed tomography (LDCT) and positron emission tomography (PET) have emerged as safer alternatives to conventional imaging modalities by significantly reducing radiation exposure. However, current approaches often face a…

Computer Vision and Pattern Recognition · Computer Science 2026-04-17 Yichao Liu , Hengzhi Xue , YueYang Teng , Junwen Guo

In the hyperspectral image (HSI) classification task, each pixel is categorized into a specific land-cover category or material. Convolutional neural networks (CNNs) and transformers have been widely used to extract local and non-local…

Computer Vision and Pattern Recognition · Computer Science 2026-04-28 Peng Chen , Wenxuan He , Feng Qian , Guangyao Shi , Jingwen Yan

In order to enhance the real-time performance of convolutional neural networks(CNNs), more and more researchers are focusing on improving the efficiency of CNN. Based on the analysis of some CNN architectures, such as ResNet, DenseNet,…

Computer Vision and Pattern Recognition · Computer Science 2018-03-16 Qiuyu Zhu , Ruixin Zhang

With the development of deep learning, the performance of hyperspectral image (HSI) classification has been greatly improved in recent years. The shortage of training samples has become a bottleneck for further improvement of performance.…

Computer Vision and Pattern Recognition · Computer Science 2018-03-01 Yanan Luo , Jie Zou , Chengfei Yao , Tao Li , Gang Bai
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