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Convolutional sparse coding (CSC) can learn representative shift-invariant patterns from multiple kinds of data. However, existing CSC methods can only model noises from Gaussian distribution, which is restrictive and unrealistic. In this…

机器学习 · 计算机科学 2020-04-22 Yaqing Wang , James T. Kwok , Lionel M. Ni

Due to the limitations of optical lens focal length and detector resolution, distant clustered infrared small targets often appear as mixed spots. The Close Small Object Unmixing (CSOU) task aims to recover the number, sub-pixel positions,…

计算机视觉与模式识别 · 计算机科学 2026-03-24 Zhiyang Tang , Yiming Zhu , Ruimin Huang , Meng Yang , Yong Ma , Jun Huang , Fan Fan

Hyperspectral imaging is an important tool in remote sensing, allowing for accurate analysis of vast areas. Due to a low spatial resolution, a pixel of a hyperspectral image rarely represents a single material, but rather a mixture of…

计算机视觉与模式识别 · 计算机科学 2017-02-28 Jürgen Hahn , Abdelhak M. Zoubir

This paper presents a semi-supervised hyperspectral unmixing solution that integrate the spatial information in the abundance estimation procedure. The proposed method is applied on a nonlinear model based on polynomial postnonlinear mixing…

信号处理 · 电气工程与系统科学 2018-03-05 Fahime Amiri , Mohammad Hossein. Kahaei

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…

图像与视频处理 · 电气工程与系统科学 2022-05-10 Danfeng Hong , Jing Yao , Deyu Meng , Naoto Yokoya , Jocelyn Chanussot

Pansharpening is a fundamental issue in remote sensing field. This paper proposes a side information partially guided convolutional sparse coding (SCSC) model for pansharpening. The key idea is to split the low resolution multispectral…

计算机视觉与模式识别 · 计算机科学 2021-03-11 Shuang Xu , Jiangshe Zhang , Kai Sun , Zixiang Zhao , Lu Huang , Junmin Liu , Chunxia Zhang

Hyperspectral remote sensing is a prominent research topic in data processing. Most of the spectral unmixing algorithms are developed by adopting the linear mixing models. Nonnegative matrix factorization (NMF) and its developments are used…

计算机视觉与模式识别 · 计算机科学 2018-12-31 Sara Khoshsokhan , Roozbeh Rajabi , Hadi Zayyani

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…

计算机视觉与模式识别 · 计算机科学 2018-08-14 Qiangqiang Yuan , Qiang Zhang , Jie Li , Huanfeng Shen , Liangpei Zhang

Hyperspectral unmixing (HU) is crucial for analyzing hyperspectral imagery, yet achieving accurate unmixing remains challenging. While traditional methods struggle to effectively model complex spectral-spatial features, deep learning…

计算机视觉与模式识别 · 计算机科学 2026-04-14 Chentong Wang , Jincheng Gao , Fei Zhu , Jie Chen

The recent advancement of deep learning techniques has made great progress on hyperspectral image super-resolution (HSI-SR). Yet the development of unsupervised deep networks remains challenging for this task. To this end, we propose a…

图像与视频处理 · 电气工程与系统科学 2020-08-04 Jing Yao , Danfeng Hong , Jocelyn Chanussot , Deyu Meng , Xiaoxiang Zhu , Zongben Xu

Hyperspectral unmixing is a critical yet challenging task in hyperspectral image interpretation. Recently, great efforts have been made to solve the hyperspectral unmixing task via deep autoencoders. However, existing networks mainly focus…

图像与视频处理 · 电气工程与系统科学 2023-08-09 Lin Qi , Xuewen Qin , Feng Gao , Junyu Dong , Xinbo Gao

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…

计算机视觉与模式识别 · 计算机科学 2020-02-10 Divinah Nyasaka , Jing Wang , Haron Tinega

Unsupervised spectral unmixing consists of representing each observed pixel as a combination of several pure materials called endmembers with their corresponding abundance fractions. Beyond the linear assumption, various nonlinear unmixing…

计算机视觉与模式识别 · 计算机科学 2023-03-16 Tingting Fang , Fei Zhu , Jie Chen

Hyperspectral unmixing remains one of the most challenging tasks in the analysis of such data. Deep learning has been blooming in the field and proved to outperform other classic unmixing techniques, and can be effectively deployed onboard…

计算机视觉与模式识别 · 计算机科学 2022-08-05 Lukasz Tulczyjew , Michal Kawulok , Nicolas Longépé , Bertrand Le Saux , Jakub Nalepa

Several approaches have been proposed to solve the spectral unmixing problem in hyperspectral image analysis. Among them the use of sparse regression techniques aims to characterize the abundances in pixels based on a large library of…

图像与视频处理 · 电气工程与系统科学 2021-02-12 L. C. Ayres , S. J. M. de Almeida , J. C. M. Bermudez , R. A. Borsoi

Unregistered hyperspectral image (HSI) super-resolution (SR) typically aims to enhance a low-resolution HSI using an unregistered high-resolution reference image. In this paper, we propose an unmixing-based fusion framework that decouples…

计算机视觉与模式识别 · 计算机科学 2026-03-10 Yingkai Zhang , Tao Zhang , Jing Nie , Ying Fu

The hyperspectral unmixing method is an algorithm that extracts material (usually called endmember) data from hyperspectral data cube pixels along with their abundances. Due to a lower spatial resolution of hyperspectral sensors data in…

图像与视频处理 · 电气工程与系统科学 2024-10-01 Vytautas Paura , Virginijus Marcinkevičius

Through spectral unmixing, hyperspectral imaging (HSI) in fluorescence-guided brain tumor surgery has enabled detection and classification of tumor regions invisible to the human eye. Prior unmixing work has focused on determining a minimal…

图像与视频处理 · 电气工程与系统科学 2024-02-01 David Black , Benoit Liquet , Sadahiro Kaneko , Antonio Di leva , Walter Stummer , Eric Suero Molina

Hyperspectral unmixing involves separating a pixel as a weighted combination of its constituent endmembers and corresponding fractional abundances, with the current state of the art results achieved by neural models on benchmark datasets.…

机器学习 · 计算机科学 2021-10-29 Gurpreet Singh , Soumyajit Gupta , Clint Dawson

The hyperspectral pixel unmixing aims to find the underlying materials (endmembers) and their proportions (abundances) in pixels of a hyperspectral image. This work extends the Latent Dirichlet Variational Autoencoder (LDVAE) pixel unmixing…

计算机视觉与模式识别 · 计算机科学 2024-05-27 Soham Chitnis , Kiran Mantripragada , Faisal Z. Qureshi