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Although active learning (AL) in segmentation tasks enables experts to annotate selected regions of interest (ROIs) instead of entire images, it remains highly challenging, labor-intensive, and cognitively demanding due to the blurry and…

计算机视觉与模式识别 · 计算机科学 2025-11-19 Md Shazid Islam , Shreyangshu Bera , Sudipta Paul , Amit K. Roy-Chowdhury

We present a novel confidence refinement scheme that enhances pseudo labels in semi-supervised semantic segmentation. Unlike existing methods, which filter pixels with low-confidence predictions in isolation, our approach leverages the…

计算机视觉与模式识别 · 计算机科学 2024-07-04 Moshe Kimhi , Shai Kimhi , Evgenii Zheltonozhskii , Or Litany , Chaim Baskin

This paper addresses semi-supervised semantic segmentation by exploiting a small set of images with pixel-level annotations (strong supervisions) and a large set of images with only image-level annotations (weak supervisions). Most existing…

计算机视觉与模式识别 · 计算机科学 2022-01-12 Rumeng Yi , Yaping Huang , Qingji Guan , Mengyang Pu , Runsheng Zhang

Compared with expensive pixel-wise annotations, image-level labels make it possible to learn semantic segmentation in a weakly-supervised manner. Within this pipeline, the class activation map (CAM) is obtained and further processed to…

计算机视觉与模式识别 · 计算机科学 2022-01-06 Jiawei Liu , Jing Zhang , Yicong Hong , Nick Barnes

Training of convolutional neural networks for semantic segmentation requires accurate pixel-wise labeling which requires large amounts of human effort. The human-in-the-loop method reduces labeling effort; however, it requires human…

计算机视觉与模式识别 · 计算机科学 2021-08-10 Keenan Granland , Rhys Newbury , David Ting , Chao Chen

Acquiring labelled training data remains a costly task in real world machine learning projects to meet quantity and quality requirements. Recently Large Language Models (LLMs), notably GPT-4, have shown great promises in labelling data with…

计算与语言 · 计算机科学 2025-01-22 Thomas Walshe , Sae Young Moon , Chunyang Xiao , Yawwani Gunawardana , Fran Silavong

Active learning aims to address the paucity of labeled data by finding the most informative samples. However, when applying to semantic segmentation, existing methods ignore the segmentation difficulty of different semantic areas, which…

计算机视觉与模式识别 · 计算机科学 2020-10-20 Shuai Xie , Zunlei Feng , Ying Chen , Songtao Sun , Chao Ma , Mingli Song

Semantic scene completion aims to infer the 3D geometric structures with semantic classes from camera or LiDAR, which provide essential occupancy information in autonomous driving. Prior endeavors concentrate on constructing the network or…

计算机视觉与模式识别 · 计算机科学 2024-05-27 Song Wang , Jiawei Yu , Wentong Li , Hao Shi , Kailun Yang , Junbo Chen , Jianke Zhu

Labeled data is a fundamental component in training supervised deep learning models for computer vision tasks. However, the labeling process, especially for ordinal image classification where class boundaries are often ambiguous, is prone…

计算机视觉与模式识别 · 计算机科学 2026-05-19 Alireza Sedighi Moghaddam , Mohammad Reza Mohammadi

Developed to alleviate prohibitive labeling costs, active learning (AL) methods aim to reduce label complexity in supervised learning. While recent work has demonstrated the benefit of using AL in combination with large pre-trained language…

机器学习 · 计算机科学 2023-10-24 Josip Jukić , Jan Šnajder

Training a real-time gesture recognition model heavily relies on annotated data. However, manual data annotation is costly and demands substantial human effort. In order to address this challenge, we propose a framework that can…

计算机视觉与模式识别 · 计算机科学 2024-10-08 Junxiao Shen , Xuhai Xu , Ran Tan , Amy Karlson , Evan Strasnick

Active Learning (AL) is a human-in-the-loop framework to interactively and adaptively label data instances, thereby enabling significant gains in model performance compared to random sampling. AL approaches function by selecting the hardest…

机器学习 · 计算机科学 2023-06-05 Nathan Beck , Krishnateja Killamsetty , Suraj Kothawade , Rishabh Iyer

Vision-Language Models (VLMs), with their powerful content generation capabilities, have been successfully applied to data annotation processes. However, the VLM-generated labels exhibit dual limitations: low quality (i.e., label noise) and…

机器学习 · 计算机科学 2025-11-17 Zhongnian Li , Lan Chen , Yixin Xu , Shi Xu , Xinzheng Xu

High-quality annotated images are significant to deep facial expression recognition (FER) methods. However, uncertain labels, mostly existing in large-scale public datasets, often mislead the training process. In this paper, we achieve…

计算机视觉与模式识别 · 计算机科学 2023-01-02 Yang Liu , Xingming Zhang , Janne Kauttonen , Guoying Zhao

Node classification on graphs is an important task in many practical domains. It usually requires labels for training, which can be difficult or expensive to obtain in practice. Given a budget for labelling, active learning aims to improve…

机器学习 · 计算机科学 2022-07-21 Juncheng Liu , Yiwei Wang , Bryan Hooi , Renchi Yang , Xiaokui Xiao

In the realm of practical Anomaly Detection (AD) tasks, manual labeling of anomalous pixels proves to be a costly endeavor. Consequently, many AD methods are crafted as one-class classifiers, tailored for training sets completely devoid of…

计算机视觉与模式识别 · 计算机科学 2024-07-08 Hanxi Li , Jingqi Wu , Lin Yuanbo Wu , Hao Chen , Deyin Liu , Chunhua Shen

The labor-intensive annotation process of semantic segmentation datasets is often prone to errors, since humans struggle to label every pixel correctly. We study algorithms to automatically detect such annotation errors, in particular…

机器学习 · 计算机科学 2023-07-12 Vedang Lad , Jonas Mueller

Weakly supervised semantic segmentation with only image-level labels aims to reduce annotation costs for the segmentation task. Existing approaches generally leverage class activation maps (CAMs) to locate the object regions for pseudo…

计算机视觉与模式识别 · 计算机科学 2022-06-22 Tao Chen , Yazhou Yao , Lei Zhang , Qiong Wang , Guo-Sen Xie , Fumin Shen

In this paper, an automatic labelling process is presented for automotive datasets, leveraging on complementary information from LiDAR and camera. The generated labels are then used as ground truth with the corresponding 4D radar data as…

计算机视觉与模式识别 · 计算机科学 2025-01-22 Botao Sun , Ignacio Roldan , Francesco Fioranelli

Remote sensing image segmentation is crucial for environmental monitoring, disaster assessment, and resource management, but its performance largely depends on the quality of the dataset. Although several high-quality datasets are broadly…

计算机视觉与模式识别 · 计算机科学 2025-09-23 Jianhao Yang , Wenshuo Yu , Yuanchao Lv , Jiance Sun , Bokang Sun , Mingyang Liu