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An often overlooked problem in medical image segmentation research is the effective selection of training subsets to annotate from a complete set of unlabelled data. Many studies select their training sets at random, which may lead to…

Computer Vision and Pattern Recognition · Computer Science 2025-03-24 Stephen Lloyd-Brown , Susan Francis , Caroline Hoad , Penny Gowland , Karen Mullinger , Andrew French , Xin Chen

In medical imaging, the heterogeneity of multi-centre data impedes the applicability of deep learning-based methods and results in significant performance degradation when applying models in an unseen data domain, e.g. a new centreor a new…

Computer Vision and Pattern Recognition · Computer Science 2020-08-12 Hongwei Li , Timo Loehr , Anjany Sekuboyina , Jianguo Zhang , Benedikt Wiestler , Bjoern Menze

It has been widely known that CAM (Class Activation Map) usually only activates discriminative object regions and falsely includes lots of object-related backgrounds. As only a fixed set of image-level object labels are available to the…

Computer Vision and Pattern Recognition · Computer Science 2022-03-28 Jinheng Xie , Xianxu Hou , Kai Ye , Linlin Shen

Weakly supervised landslide extraction aims to identify landslide regions from remote sensing data using models trained with weak labels, particularly image-level labels. However, it is often challenged by the imprecise boundaries of the…

Computer Vision and Pattern Recognition · Computer Science 2025-05-23 Jian Wang , Xiaokang Zhang , Xianping Ma , Weikang Yu , Pedram Ghamisi

Instance-level image classification tasks have traditionally relied on single-instance labels to train models, e.g., few-shot learning and transfer learning. However, set-level coarse-grained labels that capture relationships among…

Machine Learning · Computer Science 2023-11-21 Renyu Zhang , Aly A. Khan , Yuxin Chen , Robert L. Grossman

Image segmentation, the process of partitioning an image into meaningful regions, plays a pivotal role in computer vision and medical imaging applications. Unsupervised segmentation, particularly in the absence of labeled data, remains a…

Computer Vision and Pattern Recognition · Computer Science 2024-05-13 Kovvuri Sai Gopal Reddy , Bodduluri Saran , A. Mudit Adityaja , Saurabh J. Shigwan , Nitin Kumar

Semi-supervised semantic segmentation in computational pathology remains challenging due to scarce pixel-level annotations and unreliable pseudo-label supervision. We propose UniSemAlign, a dual-modal semantic alignment framework that…

Computer Vision and Pattern Recognition · Computer Science 2026-04-13 Le-Van Thai , Tien Dat Nguyen , Hoai Nhan Pham , Lan Anh Dinh Thi , Duy-Dong Nguyen , Ngoc Lam Quang Bui

An instance with a bad mask might make a composite image that uses it look fake. This encourages us to learn segmentation by generating realistic composite images. To achieve this, we propose a novel framework that exploits a new proposed…

Computer Vision and Pattern Recognition · Computer Science 2018-11-14 Songmin Dai , Xiaoqiang Li , Lu Wang , Pin Wu , Weiqin Tong , Yimin Chen

Deep Convolutional Neural Networks have proven effective in solving the task of semantic segmentation. However, their efficiency heavily relies on the pixel-level annotations that are expensive to get and often require domain expertise,…

Computer Vision and Pattern Recognition · Computer Science 2020-07-03 Ostap Viniavskyi , Mariia Dobko , Oles Dobosevych

In this paper, we investigate the impact of segmentation algorithms as a preprocessing step for classification of remote sensing images in a deep learning framework. Especially, we address the issue of segmenting the image into regions to…

Computer Vision and Pattern Recognition · Computer Science 2016-09-23 Nicolas Audebert , Bertrand Le Saux , Sébastien Lefèvre

Image segmentation is the process of partitioning an image into a set of meaningful regions according to some criteria. Hierarchical segmentation has emerged as a major trend in this regard as it favors the emergence of important regions at…

Machine Learning · Statistics 2018-02-21 Amin Fehri , Santiago Velasco-Forero , Fernand Meyer

In most scenarios, conditional image generation can be thought of as an inversion of the image understanding process. Since generic image understanding involves solving multiple tasks, it is natural to aim at generating images via…

Computer Vision and Pattern Recognition · Computer Science 2022-07-15 Ritika Chakraborty , Nikola Popovic , Danda Pani Paudel , Thomas Probst , Luc Van Gool

The success of supervised deep learning models in medical image segmentation relies on detailed annotations. However, labor-intensive manual labeling is costly and inefficient, especially in dense object segmentation. To this end, we…

Computer Vision and Pattern Recognition · Computer Science 2022-10-17 Pingyi Chen , Chenglu Zhu , Zhongyi Shui , Jiatong Cai , Sunyi Zheng , Shichuan Zhang , Lin Yang

Weakly supervised semantic segmentation (WSSS) with image-level labels is a challenging task. Mainstream approaches follow a multi-stage framework and suffer from high training costs. In this paper, we explore the potential of Contrastive…

Computer Vision and Pattern Recognition · Computer Science 2023-03-24 Yuqi Lin , Minghao Chen , Wenxiao Wang , Boxi Wu , Ke Li , Binbin Lin , Haifeng Liu , Xiaofei He

Weakly supervised segmentation is an important problem in medical image analysis due to the high cost of pixelwise annotation. Prior methods, while often focusing on weak labels of 2D images, exploit few structural cues of volumetric…

Computer Vision and Pattern Recognition · Computer Science 2021-05-07 Qian He , Shuailin Li , Xuming He

Unsupervised semantic segmentation aims to obtain high-level semantic representation on low-level visual features without manual annotations. Most existing methods are bottom-up approaches that try to group pixels into regions based on…

Computer Vision and Pattern Recognition · Computer Science 2022-07-26 Zhaoyuan Yin , Pichao Wang , Fan Wang , Xianzhe Xu , Hanling Zhang , Hao Li , Rong Jin

Histopathological image classification is an important task in medical image analysis. Recent approaches generally rely on weakly supervised learning due to the ease of acquiring case-level labels from pathology reports. However,…

Computer Vision and Pattern Recognition · Computer Science 2024-11-14 Bodong Zhang , Hamid Manoochehri , Man Minh Ho , Fahimeh Fooladgar , Yosep Chong , Beatrice S. Knudsen , Deepika Sirohi , Tolga Tasdizen

Visual anomaly detection in multi-class settings poses significant challenges due to the diversity of object categories, the scarcity of anomalous examples, and the presence of camouflaged defects. In this paper, we propose PromptMAD, a…

Computer Vision and Pattern Recognition · Computer Science 2026-02-02 Duncan McCain , Hossein Kashiani , Fatemeh Afghah

Assigning meaning to parts of image data is the goal of semantic image segmentation. Machine learning methods, specifically supervised learning is commonly used in a variety of tasks formulated as semantic segmentation. One of the major…

Computer Vision and Pattern Recognition · Computer Science 2021-12-20 Lu Yin , Vlado Menkovski , Shiwei Liu , Mykola Pechenizkiy

Recently, machine learning-based semantic segmentation algorithms have demonstrated their potential to accurately segment regions and contours in medical images, allowing the precise location of anatomical structures and abnormalities.…

Computer Vision and Pattern Recognition · Computer Science 2024-03-26 Yifei Wang , Chuhong Zhu