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Vision algorithms capable of interpreting scenes from a real-time video stream are necessary for computer-assisted surgery systems to achieve context-aware behavior. In laparoscopic procedures one particular algorithm needed for such…

Machine Learning · Computer Science 2020-10-01 Tong Yu , Didier Mutter , Jacques Marescaux , Nicolas Padoy

Following recent advancements in computer-aided detection and diagnosis systems for colonoscopy, the automated reporting of colonoscopy procedures is set to further revolutionize clinical practice. A crucial yet underexplored aspect in the…

Computer Vision and Pattern Recognition · Computer Science 2025-04-28 Carlo Biffi , Giorgio Roffo , Pietro Salvagnini , Andrea Cherubini

Image pre-training, the current de-facto paradigm for a wide range of visual tasks, is generally less favored in the field of video recognition. By contrast, a common strategy is to directly train with spatiotemporal convolutional neural…

Computer Vision and Pattern Recognition · Computer Science 2022-08-03 Xianhang Li , Huiyu Wang , Chen Wei , Jieru Mei , Alan Yuille , Yuyin Zhou , Cihang Xie

We present an efficient deep learning approach for the challenging task of tumor segmentation in multisequence MR images. In recent years, Convolutional Neural Networks (CNN) have achieved state-of-the-art performances in a large variety of…

Computer Vision and Pattern Recognition · Computer Science 2018-07-24 Pawel Mlynarski , Hervé Delingette , Antonio Criminisi , Nicholas Ayache

Convolutional neural networks (CNNs) have been recently used for a variety of histology image analysis. However, availability of a large dataset is a major prerequisite for training a CNN which limits its use by the computational pathology…

Computer Vision and Pattern Recognition · Computer Science 2018-03-07 Ruqayya Awan , Navid Alemi Koohbanani , Muhammad Shaban , Anna Lisowska , Nasir Rajpoot

Automatic surgical phase recognition is a challenging and crucial task with the potential to improve patient safety and become an integral part of intra-operative decision-support systems. In this paper, we propose, for the first time in…

Image and Video Processing · Electrical Eng. & Systems 2022-03-23 Tobias Czempiel , Magdalini Paschali , Matthias Keicher , Walter Simson , Hubertus Feussner , Seong Tae Kim , Nassir Navab

In the field of complex action recognition in videos, the quality of the designed model plays a crucial role in the final performance. However, artificially designed network structures often rely heavily on the researchers' knowledge and…

Computer Vision and Pattern Recognition · Computer Science 2021-04-05 Pengzhen Ren , Gang Xiao , Xiaojun Chang , Yun Xiao , Zhihui Li , Xiaojiang Chen

Purpose: Manual feedback from senior surgeons observing less experienced trainees is a laborious task that is very expensive, time-consuming and prone to subjectivity. With the number of surgical procedures increasing annually, there is an…

Machine Learning · Computer Science 2019-08-21 Hassan Ismail Fawaz , Germain Forestier , Jonathan Weber , Lhassane Idoumghar , Pierre-Alain Muller

Automatic recognition of fine-grained surgical activities, called steps, is a challenging but crucial task for intelligent intra-operative computer assistance. The development of current vision-based activity recognition methods relies…

Computer Vision and Pattern Recognition · Computer Science 2023-04-12 Sanat Ramesh , Diego Dall'Alba , Cristians Gonzalez , Tong Yu , Pietro Mascagni , Didier Mutter , Jacques Marescaux , Paolo Fiorini , Nicolas Padoy

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

This work presents a novel approach for the early recognition of the type of a laparoscopic surgery from its video. Early recognition algorithms can be beneficial to the development of 'smart' OR systems that can provide automatic…

Computer Vision and Pattern Recognition · Computer Science 2019-09-06 Siddharth Kannan , Gaurav Yengera , Didier Mutter , Jacques Marescaux , Nicolas Padoy

Video streams are utilised to guide minimally-invasive surgery and diagnostic procedures in a wide range of procedures, and many computer assisted techniques have been developed to automatically analyse them. These approaches can provide…

Computer Vision and Pattern Recognition · Computer Science 2022-04-01 Rema Daher , Francisco Vasconcelos , Danail Stoyanov

Recently, three dimensional (3D) convolutional neural networks (CNNs) have emerged as dominant methods to capture spatiotemporal representations in videos, by adding to pre-existing 2D CNNs a third, temporal dimension. Such 3D CNNs,…

Computer Vision and Pattern Recognition · Computer Science 2019-09-04 Gurkirt Singh , Fabio Cuzzolin

Estimating the remaining surgery duration (RSD) during surgical procedures can be useful for OR planning and anesthesia dose estimation. With the recent success of deep learning-based methods in computer vision, several neural network…

Computer Vision and Pattern Recognition · Computer Science 2020-02-27 Dominik Rivoir , Sebastian Bodenstedt , Felix von Bechtolsheim , Marius Distler , Jürgen Weitz , Stefanie Speidel

Surgical phase recognition from video is a technology that automatically classifies the progress of a surgical procedure and has a wide range of potential applications, including real-time surgical support, optimization of medical…

Computer Vision and Pattern Recognition · Computer Science 2025-05-21 Satoshi Kondo

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

Purpose: Real-time surgical tool tracking is a core component of the future intelligent operating room (OR), because it is highly instrumental to analyze and understand the surgical activities. Current methods for surgical tool tracking in…

Computer Vision and Pattern Recognition · Computer Science 2022-04-04 Chinedu Innocent Nwoye , Didier Mutter , Jacques Marescaux , Nicolas Padoy

It remains a challenge to efficiently extract spatialtemporal information from skeleton sequences for 3D human action recognition. Although most recent action recognition methods are based on Recurrent Neural Networks which present…

Computer Vision and Pattern Recognition · Computer Science 2017-06-08 Hong Liu , Juanhui Tu , Mengyuan Liu

Deep Convolutional Neural Networks (CNN) have exhibited superior performance in many visual recognition tasks including image classification, object detection, and scene label- ing, due to their large learning capacity and resistance to…

Computer Vision and Pattern Recognition · Computer Science 2016-10-12 Miao Sun , Tony X. Han , Xun Xu , Ming-Chang Liu , Ahmad Khodayari-Rostamabad

Convolutional neural networks (CNNs) are deep learning frameworks which are well-known for their notable performance in classification tasks. Hence, many skeleton-based action recognition and segmentation (SBARS) algorithms benefit from…

Machine Learning · Computer Science 2019-11-13 Babak Hosseini , Romain Montagne , Barbara Hammer