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Generalising deep models to new data from new centres (termed here domains) remains a challenge. This is largely attributed to shifts in data statistics (domain shifts) between source and unseen domains. Recently, gradient-based…

Computer Vision and Pattern Recognition · Computer Science 2021-10-05 Xiao Liu , Spyridon Thermos , Alison O'Neil , Sotirios A. Tsaftaris

Understanding the intricate workflows of cataract surgery requires modeling complex interactions between surgical tools, anatomical structures, and procedural techniques. Existing datasets primarily address isolated aspects of surgical…

Computer Vision and Pattern Recognition · Computer Science 2025-06-30 Felix Holm , Gözde Ünver , Ghazal Ghazaei , Nassir Navab

Surgical video understanding is crucial for facilitating Computer-Assisted Surgery (CAS) systems. Despite significant progress in existing studies, two major limitations persist, including inadequate visual content perception and…

Computer Vision and Pattern Recognition · Computer Science 2025-09-03 Zhen Chen , Xingjian Luo , Kun Yuan , Jinlin Wu , Danny T. M. Chan , Nassir Navab , Hongbin Liu , Zhen Lei , Jiebo Luo

Surgical tool segmentation in endoscopic images is the first step towards pose estimation and (sub-)task automation in challenging minimally invasive surgical operations. While many approaches in the literature have shown great results…

Robotics · Computer Science 2019-02-14 Cristian da Costa Rocha , Nicolas Padoy , Benoit Rosa

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

Medical image segmentation is a fundamental and critical step in many image-guided clinical approaches. Recent success of deep learning-based segmentation methods usually relies on a large amount of labeled data, which is particularly…

Computer Vision and Pattern Recognition · Computer Science 2023-11-15 Rushi Jiao , Yichi Zhang , Le Ding , Rong Cai , Jicong Zhang

The automatic summarization of surgical videos is essential for enhancing procedural documentation, supporting surgical training, and facilitating post-operative analysis. This paper presents a novel method at the intersection of artificial…

Computer Vision and Pattern Recognition · Computer Science 2025-04-29 Hugo Georgenthum , Cristian Cosentino , Fabrizio Marozzo , Pietro Liò

Robot-assisted surgery (RAS) has become a critical paradigm in modern surgery, promoting patient recovery and reducing the burden on surgeons through minimally invasive approaches. To fully realize its potential, however, a precise…

Computer Vision and Pattern Recognition · Computer Science 2026-03-17 Garam Kim , Tae Kyeong Jeong , Juyoun Park

Analyzing surgical workflow is crucial for surgical assistance robots to understand surgeries. With the understanding of the complete surgical workflow, the robots are able to assist the surgeons in intra-operative events, such as by giving…

Computer Vision and Pattern Recognition · Computer Science 2021-05-12 Yutong Ban , Guy Rosman , Thomas Ward , Daniel Hashimoto , Taisei Kondo , Hidekazu Iwaki , Ozanan Meireles , Daniela Rus

Surgical phase recognition is a critical component for context-aware decision support in intelligent operating rooms, yet training robust models is hindered by limited annotated clinical videos and large domain gaps between synthetic and…

Computer Vision and Pattern Recognition · Computer Science 2026-02-09 Yuxin He , An Li , Cheng Xue

Capitalizing on image-level pre-trained models for various downstream tasks has recently emerged with promising performance. However, the paradigm of "image pre-training followed by video fine-tuning" for high-dimensional video data…

Computer Vision and Pattern Recognition · Computer Science 2024-10-01 Shu Yang , Zhiyuan Cai , Luyang Luo , Ning Ma , Shuchang Xu , Hao Chen

Automated endoscopy video analysis is a challenging task in medical computer vision, with the primary objective of assisting surgeons during procedures. The difficulty arises from the complexity of surgical scenes and the lack of a…

Computer Vision and Pattern Recognition · Computer Science 2023-04-03 Dominik Batić , Felix Holm , Ege Özsoy , Tobias Czempiel , Nassir Navab

Surgical videos captured from microscopic or endoscopic imaging devices are rich but complex sources of information, depicting different tools and anatomical structures utilized during an extended amount of time. Despite containing crucial…

Computer Vision and Pattern Recognition · Computer Science 2023-10-25 Felix Holm , Ghazal Ghazaei , Tobias Czempiel , Ege Özsoy , Stefan Saur , Nassir Navab

While data-driven approaches excel at many image analysis tasks, the performance of these approaches is often limited by a shortage of annotated data available for training. Recent work in semi-supervised learning has shown that meaningful…

Computer Vision and Pattern Recognition · Computer Science 2021-01-22 Mayank Golhar , Taylor L. Bobrow , MirMilad Pourmousavi Khoshknab , Simran Jit , Saowanee Ngamruengphong , Nicholas J. Durr

Supervised machine learning provides state-of-the-art solutions to a wide range of computer vision problems. However, the need for copious labelled training data limits the capabilities of these algorithms in scenarios where such input is…

Computer Vision and Pattern Recognition · Computer Science 2022-09-02 András Kalapos , Bálint Gyires-Tóth

Supervised learning in large discriminative models is a mainstay for modern computer vision. Such an approach necessitates investing in large-scale human-annotated datasets for achieving state-of-the-art results. In turn, the efficacy of…

Computer Vision and Pattern Recognition · Computer Science 2020-07-21 Liang-Chieh Chen , Raphael Gontijo Lopes , Bowen Cheng , Maxwell D. Collins , Ekin D. Cubuk , Barret Zoph , Hartwig Adam , Jonathon Shlens

The performance of supervised deep learning methods for medical image segmentation is often limited by the scarcity of labeled data. As a promising research direction, semi-supervised learning addresses this dilemma by leveraging unlabeled…

Image and Video Processing · Electrical Eng. & Systems 2024-05-13 Zihang Liu , Chunhui Zhao

Video is an essential imaging modality for diagnostics, e.g. in ultrasound imaging, for endoscopy, or movement assessment. However, video hasn't received a lot of attention in the medical image analysis community. In the clinical practice,…

Computer Vision and Pattern Recognition · Computer Science 2020-05-20 Tianrui Liu , Qingjie Meng , Athanasios Vlontzos , Jeremy Tan , Daniel Rueckert , Bernhard Kainz

Surgical video understanding is essential for computer-assisted interventions, yet existing surgical foundation models remain constrained by limited data scale, procedural diversity, and inconsistent evaluation, often lacking a reproducible…

Computer Vision and Pattern Recognition · Computer Science 2026-04-03 Sicheng Lu , Zikai Xiao , Jianhui Wei , Danyu Sun , Qi Lu , Keli Hu , Yang Feng , Jian Wu , Zongxin Yang , Zuozhu Liu

Automated tracking of surgical tool keypoints in robotic surgery videos is an essential task for various downstream use cases such as skill assessment, expertise assessment, and the delineation of safety zones. In recent years, the…

Computer Vision and Pattern Recognition · Computer Science 2025-01-31 Bhargav Ghanekar , Lianne R. Johnson , Jacob L. Laughlin , Marcia K. O'Malley , Ashok Veeraraghavan