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Automated surgical gesture recognition is of great importance in robot-assisted minimally invasive surgery. However, existing methods assume that training and testing data are from the same domain, which suffers from severe performance…

Computer Vision and Pattern Recognition · Computer Science 2021-07-20 Xueying Shi , Yueming Jin , Qi Dou , Jing Qin , Pheng-Ann Heng

The purpose of gesture recognition is to recognize meaningful movements of human bodies, and gesture recognition is an important issue in computer vision. In this paper, we present a multimodal gesture recognition method based on 3D densely…

Computer Vision and Pattern Recognition · Computer Science 2020-01-17 Yi Zhang , Chong Wang , Ye Zheng , Jieyu Zhao , Yuqi Li , Xijiong Xie

Automated real-time prediction of the ergonomic risks of manipulating objects is a key unsolved challenge in developing effective human-robot collaboration systems for logistics and manufacturing applications. We present a foundational…

Our previous work classified a taxonomy of suturing gestures during a vesicourethral anastomosis of robotic radical prostatectomy in association with tissue tears and patient outcomes. Herein, we train deep-learning based computer vision…

Computer Vision and Pattern Recognition · Computer Science 2020-08-28 Francisco Luongo , Ryan Hakim , Jessica H. Nguyen , Animashree Anandkumar , Andrew J Hung

Human gesture recognition has assumed a capital role in industrial applications, such as Human-Machine Interaction. We propose an approach for segmentation and classification of dynamic gestures based on a set of handcrafted features, which…

Computer Vision and Pattern Recognition · Computer Science 2020-08-27 André Brás , Miguel Simão , Pedro Neto

Spatio-temporal feature learning is of central importance for action recognition in videos. Existing deep neural network models either learn spatial and temporal features independently (C2D) or jointly with unconstrained parameters (C3D).…

Computer Vision and Pattern Recognition · Computer Science 2019-03-05 Chao Li , Qiaoyong Zhong , Di Xie , Shiliang Pu

Recently, spatiotemporal graphs have emerged as a concise and elegant manner of representing video clips in an object-centric fashion, and have shown to be useful for downstream tasks such as action recognition. In this work, we investigate…

Computer Vision and Pattern Recognition · Computer Science 2023-12-13 Aditya Murali , Deepak Alapatt , Pietro Mascagni , Armine Vardazaryan , Alain Garcia , Nariaki Okamoto , Didier Mutter , Nicolas Padoy

Purpose: We study the relationship between surgical gestures and motion primitives in dry-lab surgical exercises towards a deeper understanding of surgical activity at fine-grained levels and interpretable feedback in skill assessment.…

Robotics · Computer Science 2023-11-13 Kay Hutchinson , Katherina Chen , Homa Alemzadeh

Five billion people in the world lack access to quality surgical care. Surgeon skill varies dramatically, and many surgical patients suffer complications and avoidable harm. Improving surgical training and feedback would help to reduce the…

Computer Vision and Pattern Recognition · Computer Science 2018-07-25 Amy Jin , Serena Yeung , Jeffrey Jopling , Jonathan Krause , Dan Azagury , Arnold Milstein , Li Fei-Fei

Fine-grained action detection is an important task with numerous applications in robotics and human-computer interaction. Existing methods typically utilize a two-stage approach including extraction of local spatio-temporal features…

Computer Vision and Pattern Recognition · Computer Science 2019-11-11 Khoi-Nguyen C. Mac , Dhiraj Joshi , Raymond A. Yeh , Jinjun Xiong , Rogerio S. Feris , Minh N. Do

Hand gesture recognition using multichannel surface electromyography (sEMG) is challenging due to unstable predictions and inefficient time-varying feature enhancement. To overcome the lack of signal based time-varying feature problems, we…

Computer Vision and Pattern Recognition · Computer Science 2025-04-07 Jungpil Shin , Abu Saleh Musa Miah , Sota Konnai , Shu Hoshitaka , Pankoo Kim

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

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

Online continuous action recognition has emerged as a critical research area due to its practical implications in real-world applications, such as human-computer interaction, healthcare, and robotics. Among various modalities,…

Computer Vision and Pattern Recognition · Computer Science 2025-02-24 Rim Slama , Wael Rabah , Hazem Wannous

We introduce specialized diffusion-based generative models that capture the spatiotemporal dynamics of fine-grained robotic surgical sub-stitch actions through supervised learning on annotated laparoscopic surgery footage. The proposed…

Computer Vision and Pattern Recognition · Computer Science 2025-03-18 Mehmet Kerem Turkcan , Mattia Ballo , Filippo Filicori , Zoran Kostic

In this paper, we address the open research problem of surgical gesture recognition using motion cues from video data only. We adapt Optical flow ConvNets initially proposed by Simonyan et al.. While Simonyan uses both RGB frames and dense…

Computer Vision and Pattern Recognition · Computer Science 2020-05-19 Duygu Sarikaya , Pierre Jannin

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

In recent times there is a growing development of video based applications for surgical purposes. Part of these applications can work offline after the end of the procedure, other applications must react immediately. However, there are…

Computer Vision and Pattern Recognition · Computer Science 2022-10-07 Adam Goldbraikh , Netanell Avisdris , Carla M. Pugh , Shlomi Laufer

Skeleton-aware sign language recognition (SLR) has gained popularity due to its ability to remain unaffected by background information and its lower computational requirements. Current methods utilize spatial graph modules and temporal…

Computer Vision and Pattern Recognition · Computer Science 2024-03-20 Lianyu Hu , Liqing Gao , Zekang Liu , Wei Feng

Analyzing temporal developments is crucial for the accurate prognosis of many medical conditions. Temporal changes that occur over short time scales are key to assessing the health of physiological functions, such as the cardiac cycle.…

Computer Vision and Pattern Recognition · Computer Science 2024-10-29 Chengzhi Shen , Martin J. Menten , Hrvoje Bogunović , Ursula Schmidt-Erfurth , Hendrik Scholl , Sobha Sivaprasad , Andrew Lotery , Daniel Rueckert , Paul Hager , Robbie Holland