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The ability to segment objects based on open-ended language prompts remains a critical challenge, requiring models to ground textual semantics into precise spatial masks while handling diverse and unseen categories. We present OpenWorldSAM,…

Computer Vision and Pattern Recognition · Computer Science 2026-02-03 Shiting Xiao , Rishabh Kabra , Yuhang Li , Donghyun Lee , Joao Carreira , Priyadarshini Panda

Surgical video segmentation is critical for AI to interpret spatial-temporal dynamics in surgery, yet model performance is constrained by limited annotated data. The SAM2 model, pretrained on natural videos, offers potential for zero-shot…

Computer Vision and Pattern Recognition · Computer Science 2025-11-27 Cheng Yuan , Jian Jiang , Kunyi Yang , Lv Wu , Rui Wang , Zi Meng , Haonan Ping , Ziyu Xu , Yifan Zhou , Wanli Song , Hesheng Wang , Yueming Jin , Qi Dou , Yutong Ban

Automated feature detection in historical maps can significantly accelerate the reconstruction of the geospatial past. However, this process is often constrained by the time-consuming task of manually digitizing sufficient high-quality…

Computer Vision and Pattern Recognition · Computer Science 2024-11-12 Xue Xia , Daiwei Zhang , Wenxuan Song , Wei Huang , Lorenz Hurni

Medical image segmentation often faces the challenge of prohibitively expensive annotation costs. While few-shot learning offers a promising solution to alleviate this burden, conventional approaches still rely heavily on pre-training with…

Computer Vision and Pattern Recognition · Computer Science 2024-11-27 Jie Xu , Xiaokang Li , Chengyu Yue , Yuanyuan Wang , Yi Guo

Amodal instance segmentation, which aims to detect and segment both visible and invisible parts of objects in images, plays a crucial role in various applications including autonomous driving, robotic manipulation, and scene understanding.…

Computer Vision and Pattern Recognition · Computer Science 2025-03-11 Wei-En Tai , Yu-Lin Shih , Cheng Sun , Yu-Chiang Frank Wang , Hwann-Tzong Chen

Recently, the powerful generalization ability exhibited by foundation models has brought forth new solutions for zero-shot anomaly segmentation tasks. However, guiding these foundation models correctly to address downstream tasks remains a…

Computer Vision and Pattern Recognition · Computer Science 2025-10-14 Yanning Hou , Ke Xu , Junfa Li , Yanran Ruan , Jianfeng Qiu

We introduce Grounded SAM, which uses Grounding DINO as an open-set object detector to combine with the segment anything model (SAM). This integration enables the detection and segmentation of any regions based on arbitrary text inputs and…

Computer Vision and Pattern Recognition · Computer Science 2024-01-26 Tianhe Ren , Shilong Liu , Ailing Zeng , Jing Lin , Kunchang Li , He Cao , Jiayu Chen , Xinyu Huang , Yukang Chen , Feng Yan , Zhaoyang Zeng , Hao Zhang , Feng Li , Jie Yang , Hongyang Li , Qing Jiang , Lei Zhang

Semantic segmentation is an important topic in computer vision with many relevant application in Earth observation. While supervised methods exist, the constraints of limited annotated data has encouraged development of unsupervised…

Computer Vision and Pattern Recognition · Computer Science 2024-08-15 Pratik Vora , Sudipan Saha

In this paper, we explore the zero-shot capability of the Segment Anything Model (SAM) for food image segmentation. To address the lack of class-specific information in SAM-generated masks, we propose a novel framework, called FoodSAM. This…

Computer Vision and Pattern Recognition · Computer Science 2023-11-10 Xing Lan , Jiayi Lyu , Hanyu Jiang , Kun Dong , Zehai Niu , Yi Zhang , Jian Xue

Online zero-shot 3D instance segmentation of a progressively reconstructed scene is both a critical and challenging task for embodied applications. With the success of visual foundation models (VFMs) in the image domain, leveraging 2D…

Computer Vision and Pattern Recognition · Computer Science 2025-04-01 Yijie Tang , Jiazhao Zhang , Yuqing Lan , Yulan Guo , Dezun Dong , Chenyang Zhu , Kai Xu

As the successor to the Segment Anything Model (SAM), the Segment Anything Model 2 (SAM2) not only improves performance in image segmentation but also extends its capabilities to video segmentation. However, its effectiveness in segmenting…

Computer Vision and Pattern Recognition · Computer Science 2024-12-30 Leiping Jie

Purpose: The Segment Anything Model (SAM) promises to ease the annotation bottleneck in medical segmentation, but overlapping anatomy and blurred boundaries make its point prompts ambiguous, leading to cycles of manual refinement to achieve…

Computer Vision and Pattern Recognition · Computer Science 2026-05-25 Adrien Meyer , Lorenzo Arboit , Giuseppe Massimiani , Shih-Min Yin , Didier Mutter , Nicolas Padoy

With the proposal of the Segment Anything Model (SAM), fine-tuning SAM for medical image segmentation (MIS) has become popular. However, due to the large size of the SAM model and the significant domain gap between natural and medical…

Computer Vision and Pattern Recognition · Computer Science 2024-10-01 Jinfeng Wang , Sifan Song , Xinkun Wang , Yiyi Wang , Yiyi Miao , Jionglong Su , S. Kevin Zhou

3D instance segmentation is fundamental to geometric understanding of the world around us. Existing methods for instance segmentation of 3D scenes rely on supervision from expensive, manual 3D annotations. We propose UnScene3D, the first…

Computer Vision and Pattern Recognition · Computer Science 2024-05-01 David Rozenberszki , Or Litany , Angela Dai

The Segment Anything Model 2 (SAM2), a prompt-guided video foundation model, has remarkably performed in video object segmentation, drawing significant attention in the community. Due to the high similarity between camouflaged objects and…

Computer Vision and Pattern Recognition · Computer Science 2025-04-02 Xin Zhang , Keren Fu , Qijun Zhao

Segment Anything Model (SAM) is a foundation model for semantic segmentation and shows excellent generalization capability with the prompts. In this empirical study, we investigate the robustness and zero-shot generalizability of the SAM in…

Image and Video Processing · Electrical Eng. & Systems 2023-05-01 An Wang , Mobarakol Islam , Mengya Xu , Yang Zhang , Hongliang Ren

3D semantic scene understanding tasks have achieved great success with the emergence of deep learning, but often require a huge amount of manually annotated training data. To alleviate the annotation cost, we propose the first…

Computer Vision and Pattern Recognition · Computer Science 2023-08-04 Shichao Dong , Guosheng Lin

In this paper, we explore a principal way to enhance the quality of widely pre-existing coarse masks, enabling them to serve as reliable training data for segmentation models to reduce the annotation cost. In contrast to prior refinement…

Computer Vision and Pattern Recognition · Computer Science 2025-03-18 Yuqi Lin , Hengjia Li , Wenqi Shao , Zheng Yang , Jun Zhao , Xiaofei He , Ping Luo , Kaipeng Zhang

Advances in machine learning, especially the introduction of transformer architectures and vision transformers, have led to the development of highly capable computer vision foundation models. The segment anything model (known colloquially…

Computer Vision and Pattern Recognition · Computer Science 2025-05-29 Kenneth Ball , Erin Taylor , Nirav Patel , Andrew Bartels , Gary Koplik , James Polly , Jay Hineman

We show that it is possible to learn semantic segmentation from very limited amounts of manual annotations, by enforcing geometric 3D constraints between multiple views. More exactly, image locations corresponding to the same physical 3D…

Computer Vision and Pattern Recognition · Computer Science 2019-01-10 Sinisa Stekovic , Friedrich Fraundorfer , Vincent Lepetit