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Interactive segmentation allows efficient label generation by leveraging user-provided clicks to progressively refine predictions, which is critical when fully supervised labels are costly or generalization to unseen classes is needed.…

Computer Vision and Pattern Recognition · Computer Science 2026-05-19 Xueyang Kang , Zijian Yu , Kourosh Khoshelham , Liangliang Nan

Semi-supervised instance segmentation poses challenges due to limited labeled data, causing difficulties in accurately localizing distinct object instances. Current teacher-student frameworks still suffer from performance constraints due to…

Computer Vision and Pattern Recognition · Computer Science 2025-04-08 Heeji Yoon , Heeseong Shin , Eunbeen Hong , Hyunwook Choi , Hansang Cho , Daun Jeong , Seungryong Kim

Obtaining human per-pixel labels for semantic segmentation is incredibly laborious, often making labeled dataset construction prohibitively expensive. Here, we endeavor to overcome this problem with a novel algorithm that combines…

Computer Vision and Pattern Recognition · Computer Science 2022-10-18 Aneesh Rangnekar , Christopher Kanan , Matthew Hoffman

The Reference Remote Sensing Image Segmentation (RRSIS) task generates segmentation masks for specified objects in images based on textual descriptions, which has attracted widespread attention and research interest. Current RRSIS methods…

Computer Vision and Pattern Recognition · Computer Science 2025-06-13 Shuyang Li , Shuang Wang , Zhuangzhuang Sun , Jing Xiao

Since the preparation of labeled data for training semantic segmentation networks of point clouds is a time-consuming process, weakly supervised approaches have been introduced to learn from only a small fraction of data. These methods are…

Computer Vision and Pattern Recognition · Computer Science 2022-09-16 Gengxin Liu , Oliver van Kaick , Hui Huang , Ruizhen Hu

Semantic segmentation is essential for analyzing highdefinition remote sensing images (HRSIs) because it allows the precise classification of objects and regions at the pixel level. However, remote sensing data present challenges owing to…

Computer Vision and Pattern Recognition · Computer Science 2025-03-12 Sachin Verma , Frank Lindseth , Gabriel Kiss

A central challenge for the task of semantic segmentation is the prohibitive cost of obtaining dense pixel-level annotations to supervise model training. In this work, we show that in order to achieve a good level of segmentation…

Computer Vision and Pattern Recognition · Computer Science 2021-04-16 Gyungin Shin , Weidi Xie , Samuel Albanie

Open-vocabulary semantic segmentation aims to assign pixel-level labels to images across an unlimited range of classes. Traditional methods address this by sequentially connecting a powerful mask proposal generator, such as the Segment…

Computer Vision and Pattern Recognition · Computer Science 2025-04-01 Minhyeok Lee , Suhwan Cho , Jungho Lee , Sunghun Yang , Heeseung Choi , Ig-Jae Kim , Sangyoun Lee

Most existing point cloud instance and semantic segmentation methods rely heavily on strong supervision signals, which require point-level labels for every point in the scene. However, such strong supervision suffers from large annotation…

Computer Vision and Pattern Recognition · Computer Science 2022-07-26 An Tao , Yueqi Duan , Yi Wei , Jiwen Lu , Jie Zhou

Label scarcity has been a long-standing issue for biomedical image segmentation, due to high annotation costs and professional requirements. Recently, active learning (AL) strategies strive to reduce annotation costs by querying a small…

Image and Video Processing · Electrical Eng. & Systems 2022-11-02 Ziyuan Zhao , Wenjing Lu , Zeng Zeng , Kaixin Xu , Bharadwaj Veeravalli , Cuntai Guan

Image-level weakly-supervised semantic segmentation (WSSS) reduces the usually vast data annotation cost by surrogate segmentation masks during training. The typical approach involves training an image classification network using global…

Computer Vision and Pattern Recognition · Computer Science 2024-06-10 Arvi Jonnarth , Yushan Zhang , Michael Felsberg

Whilst the availability of 3D LiDAR point cloud data has significantly grown in recent years, annotation remains expensive and time-consuming, leading to a demand for semi-supervised semantic segmentation methods with application domains…

Computer Vision and Pattern Recognition · Computer Science 2023-03-29 Li Li , Hubert P. H. Shum , Toby P. Breckon

Competitive point cloud semantic segmentation results usually rely on a large amount of labeled data. However, data annotation is a time-consuming and labor-intensive task, particularly for three-dimensional point cloud data. Thus,…

Computer Vision and Pattern Recognition · Computer Science 2021-05-06 Puzuo Wang , Wei Yao

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

Segment Anything Model (SAM) is an advanced foundational model for image segmentation, which is gradually being applied to remote sensing images (RSIs). Due to the domain gap between RSIs and natural images, traditional methods typically…

Computer Vision and Pattern Recognition · Computer Science 2025-01-14 Nanqing Liu , Xun Xu , Yongyi Su , Haojie Zhang , Heng-Chao Li

Semantic segmentation of remote sensing imagery plays a pivotal role in extracting precise information for diverse down-stream applications. Recent development of the Segment Anything Model (SAM), an advanced general-purpose segmentation…

Computer Vision and Pattern Recognition · Computer Science 2023-12-21 Xianping Ma , Qianqian Wu , Xingyu Zhao , Xiaokang Zhang , Man-On Pun , Bo Huang

Semantic Segmentation (SS) is a task to assign semantic label to each pixel of the images, which is of immense significance for autonomous vehicles, robotics and assisted navigation of vulnerable road users. It is obvious that in different…

Computer Vision and Pattern Recognition · Computer Science 2019-07-30 Kaite Xiang , Kaiwei Wang , Kailun Yang

Remote sensing semantic segmentation is crucial for extracting detailed land surface information, enabling applications such as environmental monitoring, land use planning, and resource assessment. In recent years, advancements in…

Computer Vision and Pattern Recognition · Computer Science 2025-06-18 Ning Zhou , Shanxiong Chen , Mingting Zhou , Haigang Sui , Lieyun Hu , Han Li , Li Hua , Qiming Zhou

In this paper, we propose a novel active learning approach integrated with an improved semi-supervised learning framework to reduce the cost of manual annotation and enhance model performance. Our proposed approach effectively leverages…

Computer Vision and Pattern Recognition · Computer Science 2026-04-14 Wanli Ma , Oktay Karakus , Paul L. Rosin

Semantic segmentation of SAR images has garnered significant attention in remote sensing due to the immunity of SAR sensors to cloudy weather and light conditions. Nevertheless, SAR imagery lacks detailed information and is plagued by…

Computer Vision and Pattern Recognition · Computer Science 2025-04-21 Wang Liu , Zhiyu Wang , Xin Guo , Puhong Duan , Xudong Kang , Shutao Li