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Multitemporal hyperspectral unmixing (MTHU) is a fundamental tool in the analysis of hyperspectral image sequences. It reveals the dynamical evolution of the materials (endmembers) and of their proportions (abundances) in a given scene.…

Image and Video Processing · Electrical Eng. & Systems 2023-05-03 Ricardo Augusto Borsoi , Tales Imbiriba , Pau Closas

Currently, this paper is under review in IEEE. Transformers have intrigued the vision research community with their state-of-the-art performance in natural language processing. With their superior performance, transformers have found their…

Computer Vision and Pattern Recognition · Computer Science 2022-10-05 Preetam Ghosh , Swalpa Kumar Roy , Bikram Koirala , Behnood Rasti , Paul Scheunders

Hyperspectral image unmixing is an inverse problem aiming at recovering the spectral signatures of pure materials of interest (called endmembers) and estimating their proportions (called abundances) in every pixel of the image. However, in…

Image and Video Processing · Electrical Eng. & Systems 2019-11-28 Lucas Drumetz , Mauro Dalla Mura , Guillaume Tochon , Ronan Fablet

In this paper, we present Uformer, an effective and efficient Transformer-based architecture for image restoration, in which we build a hierarchical encoder-decoder network using the Transformer block. In Uformer, there are two core…

Computer Vision and Pattern Recognition · Computer Science 2021-11-29 Zhendong Wang , Xiaodong Cun , Jianmin Bao , Wengang Zhou , Jianzhuang Liu , Houqiang Li

Restoring images captured under adverse weather conditions is a fundamental task for many computer vision applications. However, most existing weather restoration approaches are only capable of handling a specific type of degradation, which…

Computer Vision and Pattern Recognition · Computer Science 2024-11-27 Ruoxi Zhu , Zhengzhong Tu , Jiaming Liu , Alan C. Bovik , Yibo Fan

Multitemporal spectral unmixing (SU) is a powerful tool to process hyperspectral image (HI) sequences due to its ability to reveal the evolution of materials over time and space in a scene. However, significant spectral variability is often…

Image and Video Processing · Electrical Eng. & Systems 2022-11-28 Ricardo Augusto Borsoi , Tales Imbiriba , José Carlos Moreira Bermudez , Cédric Richard

In recent years, transformer-based deep learning networks have gained popularity in Hyperspectral (HS) unmixing applications due to their superior performance. The attention mechanism within transformers facilitates input-dependent…

Though U-Net has achieved tremendous success in medical image segmentation tasks, it lacks the ability to explicitly model long-range dependencies. Therefore, Vision Transformers have emerged as alternative segmentation structures recently,…

Image and Video Processing · Electrical Eng. & Systems 2021-11-12 Hongyi Wang , Shiao Xie , Lanfen Lin , Yutaro Iwamoto , Xian-Hua Han , Yen-Wei Chen , Ruofeng Tong

We consider the problem of video snapshot compressive imaging (SCI), where sequential high-speed frames are modulated by different masks and captured by a single measurement. The underlying principle of reconstructing multi-frame images…

Computer Vision and Pattern Recognition · Computer Science 2023-06-21 Siming Zheng , Xin Yuan

Recently, deep-learning-based approaches have been widely studied for deformable image registration task. However, most efforts directly map the composite image representation to spatial transformation through the convolutional neural…

Image and Video Processing · Electrical Eng. & Systems 2022-07-08 Jiashun Chen , Donghuan Lu , Yu Zhang , Dong Wei , Munan Ning , Xinyu Shi , Zhe Xu , Yefeng Zheng

Human state recognition is a critical topic with pervasive and important applications in human-machine systems. Multi-modal fusion, the combination of metrics from multiple data sources, has been shown as a sound method for improving the…

Human-Computer Interaction · Computer Science 2023-04-12 Ruiqi Wang , Wonse Jo , Dezhong Zhao , Weizheng Wang , Baijian Yang , Guohua Chen , Byung-Cheol Min

To benefit the complementary information between heterogeneous data, we introduce a new Multimodal Transformer (MMFormer) for Remote Sensing (RS) image classification using Hyperspectral Image (HSI) accompanied by another source of data…

Computer Vision and Pattern Recognition · Computer Science 2023-03-24 Bo Zhang , Zuheng Ming , Wei Feng , Yaqian Liu , Liang He , Kaixing Zhao

Due to the powerful ability in capturing the global information, Transformer has become an alternative architecture of CNNs for hyperspectral image classification. However, general Transformer mainly considers the global spectral…

Computer Vision and Pattern Recognition · Computer Science 2023-10-31 Zhiqiang Gong , Xian Zhou , Wen Yao

Hyperspectral unmixing (HU) targets to decompose each mixed pixel in remote sensing images into a set of endmembers and their corresponding abundances. Despite significant progress in this field using deep learning, most methods fail to…

Computer Vision and Pattern Recognition · Computer Science 2025-09-04 Hui Chen , Liangyu Liu , Xianchao Xiu , Wanquan Liu

In the remote sensing context spectral unmixing is a technique to decompose a mixed pixel into two fundamental representatives: endmembers and abundances. In this paper, a novel architecture is proposed to perform blind unmixing on…

Computer Vision and Pattern Recognition · Computer Science 2020-11-19 Yasiru Ranasinghe , Sanjaya Herath , Kavinga Weerasooriya , Mevan Ekanayake , Roshan Godaliyadda , Parakrama Ekanayake , Vijitha Herath

Hyperspectral unmixing is a blind source separation problem which consists in estimating the reference spectral signatures contained in a hyperspectral image, as well as their relative contribution to each pixel according to a given mixture…

Data Analysis, Statistics and Probability · Physics 2017-11-21 Pierre-Antoine Thouvenin , Nicolas Dobigeon , Jean-Yves Tourneret

Multi-modality image fusion is a technique that combines information from different sensors or modalities, enabling the fused image to retain complementary features from each modality, such as functional highlights and texture details.…

Computer Vision and Pattern Recognition · Computer Science 2024-04-17 Zixiang Zhao , Haowen Bai , Jiangshe Zhang , Yulun Zhang , Kai Zhang , Shuang Xu , Dongdong Chen , Radu Timofte , Luc Van Gool

Despite recent strides made by AI in image processing, the issue of mixed exposure, pivotal in many real-world scenarios like surveillance and photography, remains inadequately addressed. Traditional image enhancement techniques and current…

Computer Vision and Pattern Recognition · Computer Science 2026-01-27 Eashan Adhikarla , Kai Zhang , Rosaura G. VidalMata , Manjushree Aithal , Nikhil Ambha Madhusudhana , John Nicholson , Lichao Sun , Brian D. Davison

Transformers have shown significant success in hyperspectral unmixing (HU). However, challenges remain. While multi-scale and long-range spatial correlations are essential in unmixing tasks, current Transformer-based unmixing networks,…

Computer Vision and Pattern Recognition · Computer Science 2025-03-07 ChenTong Wang , Jincheng Gao , Fei Zhu , Abderrahim Halimi , Cédric Richard

Multi-modality image fusion enhances scene perception by combining complementary information. Unified models aim to share parameters across modalities for multi-modality image fusion, but large modality differences often cause gradient…

Computer Vision and Pattern Recognition · Computer Science 2025-11-18 Xilai Li , Xiaosong Li , Weijun Jiang
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