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Hyperspectral (HS) unmixing is the process of decomposing an HS image into material-specific spectra (endmembers) and their spatial distributions (abundance maps). Existing unmixing methods have two limitations with respect to noise…

图像与视频处理 · 电气工程与系统科学 2024-03-20 Kazuki Naganuma , Shunsuke Ono

A novel general formalism for the maximal symetrization and reduction of fields (MSRF) is proposed and applied to wavefunctions in solid state nanostructures. Its primary target is to provide an essential tool for the study and analysis of…

介观与纳米尺度物理 · 物理学 2015-05-14 S. Dalessi , M. -A. Dupertuis

We describe a fully-automatic 3D-segmentation technique for brain MR images. Using Markov random fields the segmentation algorithm captures three important MR features, i.e. non-parametric distributions of tissue intensities, neighborhood…

计算机视觉与模式识别 · 计算机科学 2009-03-20 Karsten Held , Elena Rota Kops , Bernd J. Krause , William M. Wells , Ron Kikinis , Hans-Wilhelm Mueller-Gaertner

In a semi-supervised learning scenario, (possibly noisy) partially observed labels are used as input to train a classifier, in order to assign labels to unclassified samples. In this paper, we study this classifier learning problem from a…

机器学习 · 计算机科学 2017-07-21 Gene Cheung , Weng-Tai Su , Yu Mao , Chia-Wen Lin

Within the statistical and machine learning literature, regularization techniques are often used to construct sparse (predictive) models. Most regularization strategies only work for data where all predictors are treated identically, such…

统计计算 · 统计学 2020-12-16 Sander Devriendt , Katrien Antonio , Tom Reynkens , Roel Verbelen

Recently, low-rank matrix recovery theory has been emerging as a significant progress for various image processing problems. Meanwhile, the group sparse coding (GSC) theory has led to great successes in image restoration (IR) problem with…

图像与视频处理 · 电气工程与系统科学 2020-05-26 Yunyi Li , Guan Gui , Xiefeng Cheng

Noisy labels can significantly affect the performance of deep neural networks (DNNs). In medical image segmentation tasks, annotations are error-prone due to the high demand in annotation time and in the annotators' expertise. Existing…

图像与视频处理 · 电气工程与系统科学 2023-08-08 Jiachen Yao , Yikai Zhang , Songzhu Zheng , Mayank Goswami , Prateek Prasanna , Chao Chen

Magnetic resonance fingerprinting (MRF) is a technique for quantitative estimation of spin-relaxation parameters from magnetic-resonance data. Most current MRF approaches assume that only one tissue is present in each voxel, which neglects…

We build a collaborative filtering recommender system to restore images with impulse noise for which the noisy pixels have been previously identified. We define this recommender system in terms of a new color image representation using…

计算机视觉与模式识别 · 计算机科学 2017-02-27 Alfredo Nava-Tudela

The aim of this study is to implement a method to remove ambient noise in biomedical sounds captured in auscultation. We propose an incremental approach based on multichannel non-negative matrix partial co-factorization (NMPCF) for ambient…

In this paper we present a combined strategy for the retrieval of atmospheric profiles from infrared sounders. The approach considers the spatial information and a noise-dependent dimensionality reduction approach. The extracted features…

信号处理 · 电气工程与系统科学 2020-12-11 David Malmgren-Hansen , Valero Laparra , Allan Aasbjerg Nielsen , Gustau Camps-Valls

Recovering jointly sparse signals in the multiple measurement vectors (MMV) setting is a fundamental problem in machine learning, but traditional methods often require careful parameter tuning or prior knowledge of the sparsity of the…

机器学习 · 计算机科学 2026-02-02 Lakshmi Jayalal , Sheetal Kalyani

Among the patch-based image denoising processing methods, smooth ordering of local patches (patch ordering) has been shown to give state-of-art results. For image denoising the patch ordering method forms two large TSPs (Traveling Salesman…

计算机视觉与模式识别 · 计算机科学 2017-04-27 Badre Munir

Color image segmentation is an important topic in the image processing field. MRF-MAP is often adopted in the unsupervised segmentation methods, but their performance are far behind recent interactive segmentation tools supervised by user…

计算机视觉与模式识别 · 计算机科学 2012-02-21 Qiyang Zhao

High-resolution imagery is often hindered by limitations in sensor technology, atmospheric conditions, and costs. Such challenges occur in satellite remote sensing, but also with handheld cameras, such as our smartphones. Hence,…

计算机视觉与模式识别 · 计算机科学 2026-05-15 Sander Riisøen Jyhne , Christian Igel , Morten Goodwin , Per-Arne Andersen , Serge Belongie , Nico Lang

In this paper, we propose an efficient and discriminative model for salient object detection. Our method is carried out in a stepwise mechanism based on both divergence background and compact foreground cues. In order to effectively enhance…

计算机视觉与模式识别 · 计算机科学 2017-12-01 Chenxing Xia , Hanling Zhang , Keqin Li

One image processing application that is very helpful for humans is to improve image quality, poor image quality makes the image more difficult to interpret because the information conveyed by the image is reduced. In the process of the…

图像与视频处理 · 电气工程与系统科学 2019-02-19 Rini Mayasari , Nono Heryana

We present a Mixed Integer Linear Program (MILP) approach in order to model the nonlinear problem of minimizing the tire noise. We first take more industrial constraints into account than in a former work of the authors. Then, we associate…

数据结构与算法 · 计算机科学 2018-09-14 Matthias Becker , Nicolas Ginoux , Sebastien Martin , Zsuzsanna Roka

Video semantic segmentation aims to generate accurate semantic maps for each video frame. To this end, many works dedicate to integrate diverse information from consecutive frames to enhance the features for prediction, where a feature…

计算机视觉与模式识别 · 计算机科学 2023-01-11 Jiafan Zhuang , Zilei Wang , Junjie Li

Poisson noise suppression is an important preprocessing step in several applications, such as medical imaging, microscopy, and astronomical imaging. In this work, we propose a novel patch-wise Poisson noise removal strategy, in which the…

计算机视觉与模式识别 · 计算机科学 2015-12-03 Stanislav Pyatykh , Jürgen Hesser