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In this paper, we propose an alternating directional 3D quasi-recurrent neural network for hyperspectral image (HSI) denoising, which can effectively embed the domain knowledge -- structural spatio-spectral correlation and global…

Computer Vision and Pattern Recognition · Computer Science 2020-03-11 Kaixuan Wei , Ying Fu , Hua Huang

Hyperspectral imaging aims at providing information on both the spatial and the spectral distribution of light, with high resolution. However, state-of-the-art protocols are characterized by an intrinsic trade-off imposing to sacrifice…

Optics · Physics 2024-07-22 Gianlorenzo Massaro , Francesco V. Pepe , Milena D'Angelo

Hyperspectral imaging (HSI) holds great potential for healthcare due to its rich spectral information. However, acquiring HSI data remains costly and technically demanding. Hyperspectral image reconstruction offers a practical solution by…

Computer Vision and Pattern Recognition · Computer Science 2025-11-18 Yufei Wen , Yuting Zhang , Jingdan Kang , Hao Ren , Weibin Cheng , Jintai Chen , Kaishun Wu

Three-dimensional electron microscopy (3DEM) is an essential technique to investigate volumetric tissue ultra-structure. Due to technical limitations and high imaging costs, samples are often imaged anisotropically, where resolution in the…

Image and Video Processing · Electrical Eng. & Systems 2023-09-20 Mohammad Khateri , Morteza Ghahremani , Alejandra Sierra , Jussi Tohka

Hyperspectral imaging, a rapidly evolving field, has witnessed the ascendancy of deep learning techniques, supplanting classical feature extraction and classification methods in various applications. However, many researchers employ…

Computer Vision and Pattern Recognition · Computer Science 2025-01-14 Artzai Picon , Pablo Galan , Arantza Bereciartua-Perez , Leire Benito-del-Valle

The Hyperspectral image (HSI) classification is a standard remote sensing task, in which each image pixel is given a label indicating the physical land-cover on the earth's surface. The achievements of image semantic segmentation and deep…

Computer Vision and Pattern Recognition · Computer Science 2020-02-10 Divinah Nyasaka , Jing Wang , Haron Tinega

Single image super-resolution traditionally assumes spatially-invariant degradation models, yet real-world imaging systems exhibit complex distance-dependent effects including atmospheric scattering, depth-of-field variations, and…

Computer Vision and Pattern Recognition · Computer Science 2025-10-30 Tianhao Guo , Bingjie Lu , Feng Wang , Zhengyang Lu

Hyperspectral Image (HSI) classification is an important issue in remote sensing field with extensive applications in earth science. In recent years, a large number of deep learning-based HSI classification methods have been proposed.…

Computer Vision and Pattern Recognition · Computer Science 2023-09-04 Ning Chen , Jun Yue , Leyuan Fang , Shaobo Xia

Hyperspectral compressive imaging takes advantage of compressive sensing theory to achieve coded aperture snapshot measurement without temporal scanning, and the entire three-dimensional spatial-spectral data is captured by a…

Image and Video Processing · Electrical Eng. & Systems 2021-08-03 Yubao Sun , Ying Yang , Qingshan Liu , Mohan Kankanhalli

Transformer-based approaches have revolutionized image super-resolution by modeling long-range dependencies. However, the quadratic computational complexity of vanilla self-attention mechanisms poses significant challenges, often leading to…

Computer Vision and Pattern Recognition · Computer Science 2026-04-13 Dinh Phu Tran , Thao Do , Saad Wazir , Seongah Kim , Seon Kwon Kim , Daeyoung Kim

As a new machine learning approach, extreme learning machine (ELM) has received wide attentions due to its good performances. However, when directly applied to the hyperspectral image (HSI) classification, the recognition rate is too low.…

Computer Vision and Pattern Recognition · Computer Science 2017-11-17 Faxian Cao , Zhijing Yang , Jinchang Ren , Mengying Jiang , Wing-Kuen Ling

Fusion-based hyperspectral image (HSI) super-resolution aims to produce a high-spatial-resolution HSI by fusing a low-spatial-resolution HSI and a high-spatial-resolution multispectral image. Such a HSI super-resolution process can be…

Computer Vision and Pattern Recognition · Computer Science 2024-09-10 Jianjun Liu , Zebin Wu , Liang Xiao

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

In recent years, Vision Transformer-based approaches for low-level vision tasks have achieved widespread success. Unlike CNN-based models, Transformers are more adept at capturing long-range dependencies, enabling the reconstruction of…

Computer Vision and Pattern Recognition · Computer Science 2024-11-26 Chih-Chung Hsu , Chia-Ming Lee , Yi-Shiuan Chou

Deep convolutional neural networks have been demonstrated to be effective for SISR in recent years. On the one hand, residual connections and dense connections have been used widely to ease forward information and backward gradient flows to…

Image and Video Processing · Electrical Eng. & Systems 2022-10-31 Bin-Cheng Yang , Gangshan Wu

Enormous efforts have been recently made to super-resolve hyperspectral (HS) images with the aid of high spatial resolution multispectral (MS) images. Most prior works usually perform the fusion task by means of multifarious pixel-level…

Image and Video Processing · Electrical Eng. & Systems 2022-05-10 Danfeng Hong , Jing Yao , Deyu Meng , Naoto Yokoya , Jocelyn Chanussot

Convolutional neural networks (CNNs) have achieved remarkable performance in hyperspectral image (HSI) classification over the last few years. Despite the progress that has been made, rich and informative spectral information of HSI has…

Computer Vision and Pattern Recognition · Computer Science 2024-07-09 Huiling Wang

The progress on Hyperspectral image (HSI) super-resolution (SR) is still lagging behind the research of RGB image SR. HSIs usually have a high number of spectral bands, so accurately modeling spectral band interaction for HSI SR is hard.…

Computer Vision and Pattern Recognition · Computer Science 2024-09-16 Ke Li , Luc Van Gool , Dengxin Dai

The estimation of large and extreme image rotation plays a key role in multiple computer vision domains, where the rotated images are related by a limited or a non-overlapping field of view. Contemporary approaches apply convolutional…

Computer Vision and Pattern Recognition · Computer Science 2024-03-12 Shay Dekel , Yosi Keller , Martin Cadik

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
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