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Training a neural network with a large labeled dataset is still a dominant paradigm in computational histopathology. However, obtaining such exhaustive manual annotations is often expensive, laborious, and prone to inter and Intra-observer…

Computer Vision and Pattern Recognition · Computer Science 2021-11-03 Chetan L. Srinidhi , Seung Wook Kim , Fu-Der Chen , Anne L. Martel

Temporal action segmentation in videos has drawn much attention recently. Timestamp supervision is a cost-effective way for this task. To obtain more information to optimize the model, the existing method generated pseudo frame-wise labels…

Computer Vision and Pattern Recognition · Computer Science 2022-12-14 Yang Zhao , Yan Song

Pixel-wise segmentation is one of the most data and annotation hungry tasks in our field. Providing representative and accurate annotations is often mission-critical especially for challenging medical applications. In this paper, we propose…

Computer Vision and Pattern Recognition · Computer Science 2021-04-28 Simon Reiß , Constantin Seibold , Alexander Freytag , Erik Rodner , Rainer Stiefelhagen

Various convolutional neural network (CNN) based concepts have been introduced for the prostate's automatic segmentation and its coarse subdivision into transition zone (TZ) and peripheral zone (PZ). However, when targeting a fine-grained…

Image and Video Processing · Electrical Eng. & Systems 2021-04-09 Anneke Meyer , Suhita Ghosh , Daniel Schindele , Martin Schostak , Sebastian Stober , Christian Hansen , Marko Rak

For robotic surgical videos, instrument presence annotations are typically recorded with video streams, which offering the potential to reduce the manually annotated costs for segmentation. However, weakly supervised surgical instrument…

Computer Vision and Pattern Recognition · Computer Science 2026-03-18 Qiyuan Wang , Yanzhe Liu , Shang Zhao , Rong Liu , S. Kevin Zhou

Deep learning has greatly advanced medical image segmentation, but its success relies heavily on fully supervised learning, which requires dense annotations that are costly and time-consuming for 3D volumetric scans. Barely-supervised…

Computer Vision and Pattern Recognition · Computer Science 2026-04-14 Shuang Zeng , Boxu Xie , Lei Zhu , Xinliang Zhang , Jiakui Hu , Zhengjian Yao , Yuanwei Li , Yuxing Lu , Yanye Lu

Surgical data science is a new research field that aims to observe all aspects of the patient treatment process in order to provide the right assistance at the right time. Due to the breakthrough successes of deep learning-based solutions…

Medical image segmentation typically necessitates a large and precisely annotated dataset. However, obtaining pixel-wise annotation is a labor-intensive task that requires significant effort from domain experts, making it challenging to…

Computer Vision and Pattern Recognition · Computer Science 2023-08-01 Heng Cai , Lei Qi , Qian Yu , Yinghuan Shi , Yang Gao

Active learning (AL) can reduce annotation costs in surgical video analysis while maintaining model performance. However, traditional AL methods, developed for images or short video clips, are suboptimal for surgical step recognition due to…

Computer Vision and Pattern Recognition · Computer Science 2025-07-30 Nisarg A. Shah , Bardia Safaei , Shameema Sikder , S. Swaroop Vedula , Vishal M. Patel

Scribble supervision, a common form of weakly supervised learning, involves annotating pixels using hand-drawn curve lines, which helps reduce the cost of manual labelling. This technique has been widely used in medical image segmentation…

Computer Vision and Pattern Recognition · Computer Science 2024-08-27 Jing Yuan , Tania Stathaki

Automated surgical workflow analysis is crucial for education, research, and clinical decision-making, but the lack of annotated datasets hinders the development of accurate and comprehensive workflow analysis solutions. We introduce a…

Computer Vision and Pattern Recognition · Computer Science 2025-03-17 David Gastager , Ghazal Ghazaei , Constantin Patsch

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

Surgical triplet detection is a critical task in surgical video analysis. However, existing datasets like CholecT50 lack precise spatial bounding box annotations, rendering triplet classification at the image level insufficient for…

Computer Vision and Pattern Recognition · Computer Science 2025-09-30 Yiliang Chen , Zhixi Li , Cheng Xu , Alex Qinyang Liu , Ruize Cui , Xuemiao Xu , Jeremy Yuen-Chun Teoh , Shengfeng He , Jing Qin

Automatic medical image segmentation plays a critical role in scientific research and medical care. Existing high-performance deep learning methods typically rely on large training datasets with high-quality manual annotations, which are…

Image and Video Processing · Electrical Eng. & Systems 2021-11-17 Shanshan Wang , Cheng Li , Rongpin Wang , Zaiyi Liu , Meiyun Wang , Hongna Tan , Yaping Wu , Xinfeng Liu , Hui Sun , Rui Yang , Xin Liu , Jie Chen , Huihui Zhou , Ismail Ben Ayed , Hairong Zheng

Phase recognition in surgical videos is crucial for enhancing computer-aided surgical systems as it enables automated understanding of sequential procedural stages. Existing methods often rely on fixed temporal windows for video analysis to…

Computer Vision and Pattern Recognition · Computer Science 2024-07-25 Alejandra Pérez , Santiago Rodríguez , Nicolás Ayobi , Nicolás Aparicio , Eugénie Dessevres , Pablo Arbeláez

3D image segmentation is one of the most important and ubiquitous problems in medical image processing. It provides detailed quantitative analysis for accurate disease diagnosis, abnormal detection, and classification. Currently deep…

Computer Vision and Pattern Recognition · Computer Science 2019-06-19 Zhenxi Zhang , Jie Li , Zhusi Zhong , Zhicheng Jiao , Xinbo Gao

Manual annotation of 3D medical images for segmentation tasks is tedious and time-consuming. Moreover, data privacy limits the applicability of crowd sourcing to perform data annotation in medical domains. As a result, training deep neural…

Computer Vision and Pattern Recognition · Computer Science 2024-10-15 Ruitong Sun , Mohammad Rostami

The great progress of 3D object detectors relies on large-scale data and 3D annotations. The annotation cost for 3D bounding boxes is extremely expensive while the 2D ones are easier and cheaper to collect. In this paper, we introduce a…

Computer Vision and Pattern Recognition · Computer Science 2022-11-16 Jinrong Yang , Tiancai Wang , Zheng Ge , Weixin Mao , Xiaoping Li , Xiangyu Zhang

Universal lesion detection has great value for clinical practice as it aims to detect various types of lesions in multiple organs on medical images. Deep learning methods have shown promising results, but demanding large volumes of…

Computer Vision and Pattern Recognition · Computer Science 2023-09-26 Xiaoyu Bai , Benteng Ma , Changyang Li , Yong Xia

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