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In surgical procedures, correct instrument counting is essential. Instance segmentation is a location method that locates not only an object's bounding box but also each pixel's specific details. However, obtaining mask-level annotations is…

Computer Vision and Pattern Recognition · Computer Science 2023-11-17 Zhen Sun , Huan Xu , Jinlin Wu , Zhen Chen , Zhen Lei , Hongbin Liu

The task of parsing subcutaneous vessels in clinical images is often hindered by the high cost and limited availability of ground truth data, as well as the challenge of low contrast and noisy vessel appearances across different patients…

Computer Vision and Pattern Recognition · Computer Science 2026-05-11 Ayaan Nooruddin Siddiqui , Mahnoor Zaidi , Ayesha Nazneen Shahbaz , Priyadarshini Chatterjee , Krishnan Menon Iyer

Scribble annotations significantly reduce the cost and labor required for dense labeling in large medical datasets with complex anatomical structures. However, current scribble-supervised learning methods are limited in their ability to…

Computer Vision and Pattern Recognition · Computer Science 2025-03-04 Luyi Qiu , Tristan Till , Xiaobao Guo , Adams Wai-Kin Kong

Prompt tuning has shown promising results, but its robustness and generalization to unseen categories remain limited. Through our experiments, we demonstrate that the complete removal of semantic noise is a key factor restricting…

Computer Vision and Pattern Recognition · Computer Science 2025-10-03 Yansheng Gao , Yufei Zheng , Shengsheng Wang

3D medical image segmentation is a challenging task with crucial implications for disease diagnosis and treatment planning. Recent advances in deep learning have significantly enhanced fully supervised medical image segmentation. However,…

Image and Video Processing · Electrical Eng. & Systems 2025-06-23 Runmin Jiang , Zhaoxin Fan , Junhao Wu , Lenghan Zhu , Xin Huang , Tianyang Wang , Heng Huang , Min Xu

Accurate segmentation of organelle instances, e.g., mitochondria, is essential for electron microscopy analysis. Despite the outstanding performance of fully supervised methods, they highly rely on sufficient per-pixel annotated data and…

Computer Vision and Pattern Recognition · Computer Science 2022-11-01 Dafei Qiu , Jiajin Yi , Jialin Peng

While there are novel point cloud semantic segmentation schemes that continuously surpass state-of-the-art results, the success of learning an effective model usually rely on the availability of abundant labeled data. However, data…

Computer Vision and Pattern Recognition · Computer Science 2021-10-07 Puzuo Wang , Wei Yao

In weakly-supervised semantic segmentation (WSSS) using only image-level class labels, a problem with CNN-based Class Activation Maps (CAM) is that they tend to activate the most discriminative local regions of objects. On the other hand,…

Computer Vision and Pattern Recognition · Computer Science 2024-04-10 Izumi Fujimori , Masaki Oono , Masami Shishibori

Medical image segmentation is a crucial task in medical image analysis, but it can be very challenging especially when there are less labeled data but with large unlabeled data. Contrastive learning has proven to be effective for medical…

Computer Vision and Pattern Recognition · Computer Science 2025-02-11 Shihuan He , Zhihui Lai , Ruxin Wang , Heng Kong

Current methods for 3D semantic segmentation propose training models with limited annotations to address the difficulty of annotating large, irregular, and unordered 3D point cloud data. They usually focus on the 3D domain only, without…

Computer Vision and Pattern Recognition · Computer Science 2025-08-28 Lechun You , Zhonghua Wu , Weide Liu , Xulei Yang , Jun Cheng , Wei Zhou , Bharadwaj Veeravalli , Guosheng Lin

The fine-grained annotations in whole slide images (WSIs) show the boundaries of various pathological regions. However, generating such detailed annotation is often costly, whereas the coarse annotations are relatively simpler to produce.…

Computer Vision and Pattern Recognition · Computer Science 2025-03-26 Bingjian Yao , Weiping Lin , Yan He , Zheng Wang , Liangsheng Wang

Creating fully annotated labels for medical image segmentation is prohibitively time-intensive and costly, emphasizing the necessity for innovative approaches that minimize reliance on detailed annotations. Scribble annotations offer a more…

Computer Vision and Pattern Recognition · Computer Science 2024-12-30 Xiao Zhang , Shaoxuan Wu , Peilin Zhang , Zhuo Jin , Xiaosong Xiong , Qirong Bu , Jingkun Chen , Jun Feng

Interactive segmentation models such as the Segment Anything Model (SAM) have demonstrated remarkable generalization on natural images, but they perform suboptimally on remote sensing imagery (RSI) due to severe domain shifts and the…

Computer Vision and Pattern Recognition · Computer Science 2026-03-31 M. Naseer Subhani

Weak supervision (WS) is a rich set of techniques that produce pseudolabels by aggregating easily obtained but potentially noisy label estimates from a variety of sources. WS is theoretically well understood for binary classification, where…

Machine Learning · Computer Science 2022-11-28 Harit Vishwakarma , Nicholas Roberts , Frederic Sala

Weakly supervised instance segmentation (WSIS) using only image-level labels is a challenging task due to the difficulty of aligning coarse annotations with the finer task. However, with the advancement of deep neural networks (DNNs), WSIS…

Computer Vision and Pattern Recognition · Computer Science 2024-02-13 Zecheng Li , Zening Zeng , Yuqi Liang , Jin-Gang Yu

The performance of object detection, to a great extent, depends on the availability of large annotated datasets. To alleviate the annotation cost, the research community has explored a number of ways to exploit unlabeled or weakly labeled…

Computer Vision and Pattern Recognition · Computer Science 2021-05-25 Shijie Fang , Yuhang Cao , Xinjiang Wang , Kai Chen , Dahua Lin , Wayne Zhang

Weakly Supervised Semantic Segmentation (WSSS) with image-level labels has gained attention for its cost-effectiveness. Most existing methods emphasize inter-class separation, often neglecting the shared semantics among related categories…

Computer Vision and Pattern Recognition · Computer Science 2025-09-03 Wangyu Wu , Zhenhong Chen , Xiaowen Ma , Wenqiao Zhang , Xianglin Qiu , Siqi Song , Xiaowei Huang , Fei Ma , Jimin Xiao

Obtaining pixel-level annotations over large spatial extents remains a major bottleneck for deploying machine learning in ecological applications. Here we present a multi-scale weakly supervised semantic segmentation (WSSS) framework that…

Computer Vision and Pattern Recognition · Computer Science 2026-05-25 Matteo Contini , Victor Illien , Sylvain Poulain , Serge Bernard , Julien Barde , Sylvain Bonhommeau , Alexis Joly

The costly process of obtaining semantic segmentation labels has driven research towards weakly supervised semantic segmentation (WSSS) methods, using only image-level, point, or box labels. The lack of dense scene representation requires…

Computer Vision and Pattern Recognition · Computer Science 2021-06-29 Peri Akiva , Kristin Dana

Universal models for medical image segmentation, such as interactive and in-context learning (ICL) models, offer strong generalization but require extensive annotations. Interactive models need repeated user prompts for each image, while…

Computer Vision and Pattern Recognition · Computer Science 2025-10-09 Jiesi Hu , Yanwu Yang , Zhiyu Ye , Jinyan Zhou , Jianfeng Cao , Hanyang Peng , Ting Ma