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Manual annotation of volumetric medical images, such as magnetic resonance imaging (MRI) and computed tomography (CT), is a labor-intensive and time-consuming process. Recent advancements in foundation models for video object segmentation,…

Image and Video Processing · Electrical Eng. & Systems 2025-11-04 Yuwen Chen , Zafer Yildiz , Qihang Li , Yaqian Chen , Haoyu Dong , Hanxue Gu , Nicholas Konz , Maciej A. Mazurowski

Present-day deep neural networks for video semantic segmentation require a large number of fine-grained pixel-level annotations to achieve the best possible results. Obtaining such annotations, however, is very expensive. On the other hand,…

Computer Vision and Pattern Recognition · Computer Science 2026-03-31 Samik Some , Vinay P. Namboodiri

Creating annotations for 3D medical data is time-consuming and often requires highly specialized expertise. Various tools have been implemented to aid this process. Segment Anything Model 2 (SAM 2) offers a general-purpose prompt-based…

Image and Video Processing · Electrical Eng. & Systems 2024-08-28 Zafer Yildiz , Yuwen Chen , Maciej A. Mazurowski

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

Curating annotations for medical image segmentation is a labor-intensive and time-consuming task that requires domain expertise, resulting in "narrowly" focused deep learning (DL) models with limited translational utility. Recently,…

Computer Vision and Pattern Recognition · Computer Science 2024-03-25 Pranav Kulkarni , Adway Kanhere , Dharmam Savani , Andrew Chan , Devina Chatterjee , Paul H. Yi , Vishwa S. Parekh

Manual annotation of medical images is highly subjective, leading to inevitable and huge annotation biases. Deep learning models may surpass human performance on a variety of tasks, but they may also mimic or amplify these biases. Although…

Computer Vision and Pattern Recognition · Computer Science 2022-03-23 Zehui Liao , Shishuai Hu , Yutong Xie , Yong Xia

Few-shot video object segmentation aims to reduce annotation costs; however, existing methods still require abundant dense frame annotations for training, which are scarce in the medical domain. We investigate an extremely low-data regime…

Computer Vision and Pattern Recognition · Computer Science 2025-03-20 Zixuan Zheng , Yilei Shi , Chunlei Li , Jingliang Hu , Xiao Xiang Zhu , Lichao Mou

To efficiently establish training databases for machine learning methods, collaborative and crowdsourcing platforms have been investigated to collectively tackle the annotation effort. However, when this concept is ported to the medical…

Computer Vision and Pattern Recognition · Computer Science 2017-08-22 Martin Rajchl , Lisa M. Koch , Christian Ledig , Jonathan Passerat-Palmbach , Kazunari Misawa , Kensaku Mori , Daniel Rueckert

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…

Computer Vision and Pattern Recognition · Computer Science 2025-09-23 Jianhao Yang , Wenshuo Yu , Yuanchao Lv , Jiance Sun , Bokang Sun , Mingyang Liu

Scarcity of high quality annotated images remains a limiting factor for training accurate image segmentation models. While more and more annotated datasets become publicly available, the number of samples in each individual database is…

Computer Vision and Pattern Recognition · Computer Science 2021-07-14 Gregory Filbrandt , Konstantinos Kamnitsas , David Bernstein , Alexandra Taylor , Ben Glocker

We present CataractSAM-2, a domain-adapted extension of Meta's Segment Anything Model 2, designed for real-time semantic segmentation of cataract ophthalmic surgery videos with high accuracy. Positioned at the intersection of computer…

The development of machine learning models for CT imaging depends on the availability of large, high-quality, and diverse annotated datasets. Although large volumes of CT images and reports are readily available in clinical picture…

Computer Vision and Pattern Recognition · Computer Science 2026-02-03 Samuel Church , Joshua D. Warner , Danyal Maqbool , Xin Tie , Junjie Hu , Meghan G. Lubner , Tyler J. Bradshaw

Multi-rater annotations commonly occur when medical images are independently annotated by multiple experts (raters). In this paper, we tackle two challenges arisen in multi-rater annotations for medical image segmentation (called ambiguous…

Computer Vision and Pattern Recognition · Computer Science 2024-08-26 Jinhong Wang , Yi Cheng , Jintai Chen , Hongxia Xu , Danny Chen , Jian Wu

Surgical tool segmentation in endoscopic images is an important problem: it is a crucial step towards full instrument pose estimation and it is used for integration of pre- and intra-operative images into the endoscopic view. While many…

Computer Vision and Pattern Recognition · Computer Science 2020-07-10 Daniil Pakhomov , Wei Shen , Nassir Navab

As deep learning methods continue to improve medical image segmentation performance, data annotation is still a big bottleneck due to the labor-intensive and time-consuming burden on medical experts, especially for 3D images. To…

Computer Vision and Pattern Recognition · Computer Science 2023-09-26 Yixuan Wu , Bo Zheng , Jintai Chen , Danny Z. Chen , Jian Wu

Deep learning models for semantic segmentation rely on expensive, large-scale, manually annotated datasets. Labelling is a tedious process that can take hours per image. Automatically annotating video sequences by propagating sparsely…

Computer Vision and Pattern Recognition · Computer Science 2021-09-29 Aditya Ganeshan , Alexis Vallet , Yasunori Kudo , Shin-ichi Maeda , Tommi Kerola , Rares Ambrus , Dennis Park , Adrien Gaidon

Acquiring per-frame video annotations remains a primary bottleneck for deploying computer vision in specialized domains such as medical imaging, where expert labeling is slow and costly. Label propagation offers a natural solution, yet…

Computer Vision and Pattern Recognition · Computer Science 2026-03-18 Zhuorui Zhang , Roger Pallarès-López , Praneeth Namburi , Brian W. Anthony

Surgical tool segmentation in endoscopic videos is an important component of computer assisted interventions systems. Recent success of image-based solutions using fully-supervised deep learning approaches can be attributed to the…

Computer Vision and Pattern Recognition · Computer Science 2020-07-23 Manish Sahu , Ronja Strömsdörfer , Anirban Mukhopadhyay , Stefan Zachow

Purpose: Segmentation of surgical instruments in endoscopic videos is essential for automated surgical scene understanding and process modeling. However, relying on fully supervised deep learning for this task is challenging because manual…

Computer Vision and Pattern Recognition · Computer Science 2021-03-03 Manish Sahu , Anirban Mukhopadhyay , Stefan Zachow

As the area of application of deep neural networks expands to areas requiring expertise, e.g., in medicine and law, more exquisite annotation processes for expert knowledge training are required. In particular, it is difficult to guarantee…

Computer Vision and Pattern Recognition · Computer Science 2021-10-25 Seungbum Hong , Jiwon Lee , Bokyung Park , Ahmed A. Alwusaibie , Anwar H. Alfadhel , SungHyun Park , Woo Jin Hyung , Min-Kook Choi
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