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Semantic segmentation is a key computer vision task that has been actively researched for decades. In recent years, supervised methods have reached unprecedented accuracy, however they require many pixel-level annotations for every new…

Computer Vision and Pattern Recognition · Computer Science 2021-12-07 Nir Zabari , Yedid Hoshen

Developing an AI-assisted gland segmentation method from histology images is critical for automatic cancer diagnosis and prognosis; however, the high cost of pixel-level annotations hinders its applications to broader diseases. Existing…

Computer Vision and Pattern Recognition · Computer Science 2022-06-28 Yi Li , Yiduo Yu , Yiwen Zou , Tianqi Xiang , Xiaomeng Li

The use of Deep Learning techniques for classification in Hyperspectral Imaging (HSI) is rapidly growing and achieving improved performances. Due to the nature of the data captured by sensors that produce HSI images, a common issue is the…

Computer Vision and Pattern Recognition · Computer Science 2023-10-17 Aryan Vats , Manan Suri

The demand for accurate food quantification has increased in the recent years, driven by the needs of applications in dietary monitoring. At the same time, computer vision approaches have exhibited great potential in automating tasks within…

Computer Vision and Pattern Recognition · Computer Science 2023-08-23 Valasia Vlachopoulou , Ioannis Sarafis , Alexandros Papadopoulos

Challenging computer vision tasks, in particular semantic image segmentation, require large training sets of annotated images. While obtaining the actual images is often unproblematic, creating the necessary annotation is a tedious and…

Computer Vision and Pattern Recognition · Computer Science 2015-04-29 Alexander Kolesnikov , Christoph H. Lampert

The reasoning segmentation task involves segmenting objects within an image by interpreting implicit user instructions, which may encompass subtleties such as contextual cues and open-world knowledge. Despite significant advancements made…

Computer Vision and Pattern Recognition · Computer Science 2025-08-14 Weihuang Lin , Yiwei Ma , Xiaoshuai Sun , Shuting He , Jiayi Ji , Liujuan Cao , Rongrong Ji

Due to the large footprint of pixels in remote sensing imagery, hyperspectral unmixing (HU) has become an important and necessary procedure in hyperspectral image analysis. Traditional HU methods rely on a prior spectral mixing model,…

Computer Vision and Pattern Recognition · Computer Science 2026-04-02 Maofeng Tang , Hairong Qi

Hyperspectral image classification (HIC) is an important but challenging task, and a problem that limits the algorithmic development in this field is that the ground truths of hyperspectral images (HSIs) are extremely hard to obtain.…

Computer Vision and Pattern Recognition · Computer Science 2020-12-22 Hao Zeng , Qingjie Liu , Mingming Zhang , Xiaoqing Han , Yunhong Wang

Robust detection of AI-generated images in the wild remains challenging due to the rapid evolution of generative models and varied real-world distortions. We argue that relying on a single training regime, resolution, or backbone is…

Computer Vision and Pattern Recognition · Computer Science 2026-04-07 Fei Wu , Dagong Lu , Mufeng Yao , Xinlei Xu , Fengjun Guo

High-quality pixel-level annotations are essential for the semantic segmentation of remote sensing imagery. However, such labels are expensive to obtain and often affected by noise due to the labor-intensive and time-consuming nature of…

Deep Learning (DL) models have been successfully applied to many applications including biomedical cell segmentation and classification in histological images. These models require large amounts of annotated data which might not always be…

Image and Video Processing · Electrical Eng. & Systems 2024-06-04 Roberto Basla , Loris Giulivi , Luca Magri , Giacomo Boracchi

Denoising is the essential step for distant supervision based named entity recognition. Previous denoising methods are mostly based on instance-level confidence statistics, which ignore the variety of the underlying noise distribution on…

Computation and Language · Computer Science 2021-06-18 Wenkai Zhang , Hongyu Lin , Xianpei Han , Le Sun , Huidan Liu , Zhicheng Wei , Nicholas Jing Yuan

Graph-based semi-supervised learning methods, which deal well with the situation of limited labeled data, have shown dominant performance in practical applications. However, the high dimensionality of hyperspectral images (HSI) makes it…

Computer Vision and Pattern Recognition · Computer Science 2021-03-26 Yanling Miao , Qi Wang , Mulin Chen , Xuelong Li

This paper investigates the problem of image classification with limited or no annotations, but abundant unlabeled data. The setting exists in many tasks such as semi-supervised image classification, image clustering, and image retrieval.…

Computer Vision and Pattern Recognition · Computer Science 2016-02-05 Dengxin Dai , Luc Van Gool

Change detection in heterogeneous multitemporal satellite images is an emerging and challenging topic in remote sensing. In particular, one of the main challenges is to tackle the problem in an unsupervised manner. In this paper we propose…

Computer Vision and Pattern Recognition · Computer Science 2020-01-08 Luigi T. Luppino , Filippo M. Bianchi , Gabriele Moser , Stian N. Anfinsen

Semantic segmentation has innately relied on extensive pixel-level annotated data, leading to the emergence of unsupervised methodologies. Among them, leveraging self-supervised Vision Transformers for unsupervised semantic segmentation…

Computer Vision and Pattern Recognition · Computer Science 2024-04-08 Chanyoung Kim , Woojung Han , Dayun Ju , Seong Jae Hwang

Deep learning-based histopathology image classification is a key technique to help physicians in improving the accuracy and promptness of cancer diagnosis. However, the noisy labels are often inevitable in the complex manual annotation…

Image and Video Processing · Electrical Eng. & Systems 2021-12-08 Chuang Zhu , Wenkai Chen , Ting Peng , Ying Wang , Mulan Jin

Hyperspectral image (HSI) classification is a cornerstone of remote sensing, enabling precise material and land-cover identification through rich spectral information. While deep learning has driven significant progress in this task, small…

Computer Vision and Pattern Recognition · Computer Science 2025-02-19 Weilian Zhou , Weixuan Xie , Sei-ichiro Kamata , Man Sing Wong , Huiying , Hou , Haipeng Wang

Unsupervised semantic segmentation aims to discover groupings within and across images that capture object and view-invariance of a category without external supervision. Grouping naturally has levels of granularity, creating ambiguity in…

Computer Vision and Pattern Recognition · Computer Science 2022-04-26 Tsung-Wei Ke , Jyh-Jing Hwang , Yunhui Guo , Xudong Wang , Stella X. Yu

Inspired by the recently remarkable successes of Sparse Representation (SR), Collaborative Representation (CR) and sparse graph, we present a novel hypergraph model named Regression-based Hypergraph (RH) which utilizes the regression models…

Computer Vision and Pattern Recognition · Computer Science 2016-03-15 Sheng Huang , Dan Yang , Bo Liu , Xiaohong Zhang