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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

Deep learning based methods often suffer from performance degradation caused by domain shift. In recent years, many sophisticated network structures have been designed to tackle this problem. However, the advent of large model trained on…

Computer Vision and Pattern Recognition · Computer Science 2024-09-20 Zhikai Wei , Wenhui Dong , Peilin Zhou , Yuliang Gu , Zhou Zhao , Yongchao Xu

Medical image segmentation has been traditionally approached by training or fine-tuning the entire model to cater to any new modality or dataset. However, this approach often requires tuning a large number of parameters during training.…

Computer Vision and Pattern Recognition · Computer Science 2024-08-14 Jay N. Paranjape , Shameema Sikder , S. Swaroop Vedula , Vishal M. Patel

Due to the inherent flexibility of prompting, foundation models have emerged as the predominant force in the fields of natural language processing and computer vision. The recent introduction of the Segment Anything Model (SAM) signifies a…

Image and Video Processing · Electrical Eng. & Systems 2024-01-09 Yichi Zhang , Zhenrong Shen , Rushi Jiao

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

The Segment Anything Model (SAM) has exhibited outstanding performance in various image segmentation tasks. Despite being trained with over a billion masks, SAM faces challenges in mask prediction quality in numerous scenarios, especially…

Computer Vision and Pattern Recognition · Computer Science 2024-01-25 Zhaozhi Xie , Bochen Guan , Weihao Jiang , Muyang Yi , Yue Ding , Hongtao Lu , Lei Zhang

Due to the scarcity of annotated data and the substantial computational costs of model, conventional tuning methods in medical image segmentation face critical challenges. Current approaches to adapting pretrained models, including…

Computer Vision and Pattern Recognition · Computer Science 2025-12-05 Chenlin Xu , Lei Zhang , Lituan Wang , Xinyu Pu , Pengfei Ma , Guangwu Qian , Zizhou Wang , Yan Wang

Zero-shot anomaly detection aims to detect and localise abnormal regions in the image without access to any in-domain training images. While recent approaches leverage vision-language models (VLMs), such as CLIP, to transfer high-level…

Computer Vision and Pattern Recognition · Computer Science 2026-04-10 Matic Fučka , Vitjan Zavrtanik , Danijel Skočaj

Foundational models such as the Segment Anything Model (SAM) are gaining traction in medical imaging segmentation, supporting multiple downstream tasks. However, such models are supervised in nature, still relying on large annotated…

Computer Vision and Pattern Recognition · Computer Science 2025-03-07 Aishik Konwer , Zhijian Yang , Erhan Bas , Cao Xiao , Prateek Prasanna , Parminder Bhatia , Taha Kass-Hout

Zero-Shot Video Anomaly Detection (ZS-VAD) requires temporally localizing anomalies without target domain training data, which is a crucial task due to various practical concerns, e.g., data privacy or new surveillance deployments.…

Computer Vision and Pattern Recognition · Computer Science 2026-04-30 Canhui Tang , Sanping Zhou , Haoyue Shi , Le Wang

Segment anything model (SAM) has emerged as the leading approach for zero-shot learning in segmentation tasks, offering the advantage of avoiding pixel-wise annotations. It is particularly appealing in medical image segmentation, where the…

Image and Video Processing · Electrical Eng. & Systems 2023-12-29 Ziyi Huang , Hongshan Liu , Haofeng Zhang , Xueshen Li , Haozhe Liu , Fuyong Xing , Andrew Laine , Elsa Angelini , Christine Hendon , Yu Gan

Recent work has shown that label-efficient few-shot learning through self-supervision can achieve promising medical image segmentation results. However, few-shot segmentation models typically rely on prototype representations of the…

Image and Video Processing · Electrical Eng. & Systems 2022-03-07 Stine Hansen , Srishti Gautam , Robert Jenssen , Michael Kampffmeyer

We present a simple and practical framework for anomaly segmentation called Maskomaly. It builds upon mask-based standard semantic segmentation networks by adding a simple inference-time post-processing step which leverages the raw mask…

Computer Vision and Pattern Recognition · Computer Science 2023-08-29 Jan Ackermann , Christos Sakaridis , Fisher Yu

Segmentation is an essential step for remote sensing image processing. This study aims to advance the application of the Segment Anything Model (SAM), an innovative image segmentation model by Meta AI, in the field of remote sensing image…

Computer Vision and Pattern Recognition · Computer Science 2023-11-02 Lucas Prado Osco , Qiusheng Wu , Eduardo Lopes de Lemos , Wesley Nunes Gonçalves , Ana Paula Marques Ramos , Jonathan Li , José Marcato Junior

The performance of image segmentation models has historically been constrained by the high cost of collecting large-scale annotated data. The Segment Anything Model (SAM) alleviates this original problem through a promptable,…

Computer Vision and Pattern Recognition · Computer Science 2026-02-04 Miguel Espinosa , Chenhongyi Yang , Linus Ericsson , Steven McDonagh , Elliot J. Crowley

Segment Anything Model (SAM) has demonstrated impressive zero-shot performance and brought a range of unexplored capabilities to natural image segmentation tasks. However, as a very important branch of image segmentation, the performance of…

Computer Vision and Pattern Recognition · Computer Science 2025-02-04 Bin Xie , Hao Tang , Dawen Cai , Yan Yan , Gady Agam

The Segment Anything Model (SAM), developed by Meta AI Research, represents a significant breakthrough in computer vision, offering a robust framework for image and video segmentation. This survey provides a comprehensive exploration of the…

Zero-shot anomaly detection (ZSAD) requires detection models trained using auxiliary data to detect anomalies without any training sample in a target dataset. It is a crucial task when training data is not accessible due to various…

Computer Vision and Pattern Recognition · Computer Science 2026-01-05 Qihang Zhou , Guansong Pang , Yu Tian , Shibo He , Jiming Chen

In this paper, we address the challenge of image resolution variation for the Segment Anything Model (SAM). SAM, known for its zero-shot generalizability, exhibits a performance degradation when faced with datasets with varying image sizes.…

Computer Vision and Pattern Recognition · Computer Science 2024-03-21 Yiran Song , Qianyu Zhou , Xiangtai Li , Deng-Ping Fan , Xuequan Lu , Lizhuang Ma

Few-shot semantic segmentation aims to segment novel-class objects in a given query image with only a few labeled support images. Most advanced solutions exploit a metric learning framework that performs segmentation through matching each…

Computer Vision and Pattern Recognition · Computer Science 2023-01-18 Jiacheng Chen , Bin-Bin Gao , Zongqing Lu , Jing-Hao Xue , Chengjie Wang , Qingmin Liao