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Partially-supervised multi-organ medical image segmentation aims to develop a unified semantic segmentation model by utilizing multiple partially-labeled datasets, with each dataset providing labels for a single class of organs. However,…

计算机视觉与模式识别 · 计算机科学 2024-09-06 Xixi Jiang , Dong Zhang , Xiang Li , Kangyi Liu , Kwang-Ting Cheng , Xin Yang

Incorporating spatial information into hyperspectral unmixing procedures has been shown to have positive effects, due to the inherent spatial-spectral duality in hyperspectral scenes. Current research works that consider spatial information…

机器学习 · 统计学 2013-11-01 Jie Chen , Cédric Richard , Alfred O. Hero

Semi-supervised semantic segmentation requires the model to effectively propagate the label information from limited annotated images to unlabeled ones. A challenge for such a per-pixel prediction task is the large intra-class variation,…

计算机视觉与模式识别 · 计算机科学 2022-10-11 Hai-Ming Xu , Lingqiao Liu , Qiuchen Bian , Zhen Yang

This paper studies a fully Bayesian algorithm for endmember extraction and abundance estimation for hyperspectral imagery. Each pixel of the hyperspectral image is decomposed as a linear combination of pure endmember spectra following the…

数据分析、统计与概率 · 物理学 2010-08-30 Nicolas Dobigeon , Said Moussaoui , Martial Coulon , Jean-Yves Tourneret , Alfred O. Hero

This paper focuses on semi-supervised crowd counting, where only a small portion of the training data are labeled. We formulate the pixel-wise density value to regress as a probability distribution, instead of a single deterministic value.…

计算机视觉与模式识别 · 计算机科学 2024-02-26 Hui Lin , Zhiheng Ma , Rongrong Ji , Yaowei Wang , Zhou Su , Xiaopeng Hong , Deyu Meng

This paper presents a multi-band image fusion algorithm based on unsupervised spectral unmixing for combining a high-spatial low-spectral resolution image and a low-spatial high-spectral resolution image. The widely used linear observation…

计算机视觉与模式识别 · 计算机科学 2016-11-03 Qi Wei , Jose Bioucas-Dias , Nicolas Dobigeon , Jean-Yves Tourneret , Marcus Chen , Simon Godsill

This paper presents a new linear hyperspectral unmixing method of the minimum volume class, termed \emph{simplex identification via split augmented Lagrangian} (SISAL). Following Craig's seminal ideas, hyperspectral linear unmixing amounts…

最优化与控制 · 数学 2016-11-17 Jose Bioucas-Dias

This study proposes a novel framework for spectral unmixing by using 1D convolution kernels and spectral uncertainty. High-level representations are computed from data, and they are further modeled with the Multinomial Mixture Model to…

计算机视觉与模式识别 · 计算机科学 2020-12-15 Savas Ozkan , Gozde Bozdagi Akar

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

Semi-supervised regression (SSR), which aims to predict continuous scores for samples while reducing the reliance on large-scale labeled data, has recently attracted considerable attention across various applications, including computer…

机器学习 · 计算机科学 2026-05-28 Ye Su , Hezhe Qiao , Wei Huang , Lin Chen

Densely annotating LiDAR point clouds is costly, which restrains the scalability of fully-supervised learning methods. In this work, we study the underexplored semi-supervised learning (SSL) in LiDAR segmentation. Our core idea is to…

计算机视觉与模式识别 · 计算机科学 2023-09-04 Lingdong Kong , Jiawei Ren , Liang Pan , Ziwei Liu

We introduce a new approach to probabilistic unsupervised learning based on the recognition-parametrised model (RPM): a normalised semi-parametric hypothesis class for joint distributions over observed and latent variables. Under the key…

机器学习 · 计算机科学 2023-04-21 William I. Walker , Hugo Soulat , Changmin Yu , Maneesh Sahani

This paper proposes a novel pixel-level distribution regularization scheme (DRSL) for self-supervised domain adaptation of semantic segmentation. In a typical setting, the classification loss forces the semantic segmentation model to…

计算机视觉与模式识别 · 计算机科学 2022-06-22 Javed Iqbal , Hamza Rawal , Rehan Hafiz , Yu-Tseh Chi , Mohsen Ali

Deep learning methodologies have been employed in several different fields, with an outstanding success in image recognition applications, such as material quality control, medical imaging, autonomous driving, etc. Deep learning models rely…

计算机视觉与模式识别 · 计算机科学 2022-03-11 Saul Calderon-Ramirez , Shengxiang Yang , David Elizondo

In this paper, spatial modulation (SM) is introduced to layered division multiplexing (LDM) systems for enlarging the spectral efficiency over broadcasting transmission. Firstly, the SM aided LDM (SM-LDM) system is proposed, in which…

信息论 · 计算机科学 2018-01-16 Yue Sun , Jintao Wang , Changyong Pan , Longzhuang He , Bo Ai

Improving a semi-supervised image segmentation task has the option of adding more unlabelled images, labelling the unlabelled images or combining both, as neither image acquisition nor expert labelling can be considered trivial in most…

图像与视频处理 · 电气工程与系统科学 2019-08-23 Yunguan Fu , Maria R. Robu , Bongjin Koo , Crispin Schneider , Stijn van Laarhoven , Danail Stoyanov , Brian Davidson , Matthew J. Clarkson , Yipeng Hu

Subspace clustering is a powerful unsupervised approach for hyperspectral image (HSI) analysis, but its high computational and memory costs limit scalability. Superpixel segmentation can improve efficiency by reducing the number of data…

计算机视觉与模式识别 · 计算机科学 2025-09-30 Xianlu Li , Nicolas Nadisic , Shaoguang Huang , Aleksandra Pizurica

Sparse annotation in remote sensing object detection poses significant challenges due to dense object distributions and category imbalances. Although existing Dense Pseudo-Label methods have demonstrated substantial potential in…

计算机视觉与模式识别 · 计算机科学 2025-09-23 Wei Liao , Chunyan Xu , Chenxu Wang , Zhen Cui

While making a tremendous impact in various fields, deep neural networks usually require large amounts of labeled data for training which are expensive to collect in many applications, especially in the medical domain. Unlabeled data, on…

计算机视觉与模式识别 · 计算机科学 2020-02-25 Yingda Xia , Fengze Liu , Dong Yang , Jinzheng Cai , Lequan Yu , Zhuotun Zhu , Daguang Xu , Alan Yuille , Holger Roth

End member analysis (EMA) unmixes grain size distribution (GSD) data into a mixture of end members (EMs), thus helping understand sediment provenance and depositional regimes and processes. In highly mixed data sets, however, many EMA…

统计方法学 · 统计学 2026-01-05 Qianqian Qi , Zhongming Chen , Peter G. M. van der Heijden