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Purpose: The objective of this investigation is to provide a comprehensive analysis of state-of-the-art methods for video-based assessment of surgical skill in the operating room. Methods: Using a data set of 99 videos of capsulorhexis, a…

Computer Vision and Pattern Recognition · Computer Science 2022-05-16 Sanchit Hira , Digvijay Singh , Tae Soo Kim , Shobhit Gupta , Gregory Hager , Shameema Sikder , S. Swaroop Vedula

With introduction of new technologies in the operating room like the da Vinci Surgical System, training surgeons to use them effectively and efficiently is crucial in the delivery of better patient care. Coaching by an expert surgeon is…

Robotics · Computer Science 2020-04-08 Anand Malpani , S. Swaroop Vedula , Henry C. Lin , Gregory D. Hager , Russell H. Taylor

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

We present a method to analyze images taken from a passive egocentric wearable camera along with the contextual information, such as time and day of week, to learn and predict everyday activities of an individual. We collected a dataset of…

Computer Vision and Pattern Recognition · Computer Science 2015-10-07 Daniel Castro , Steven Hickson , Vinay Bettadapura , Edison Thomaz , Gregory Abowd , Henrik Christensen , Irfan Essa

In surgical training for medical students, proficiency development relies on expert-led skill assessment, which is costly, time-limited, difficult to scale, and its expertise remains confined to institutions with available specialists.…

Computer Vision and Pattern Recognition · Computer Science 2026-03-30 Le Ma , Thiago Freitas dos Santos , Nadia Magnenat-Thalmann , Katarzyna Wac

Student engagement is an important factor in meeting the goals of virtual learning programs. Automatic measurement of student engagement provides helpful information for instructors to meet learning program objectives and individualize…

Computer Vision and Pattern Recognition · Computer Science 2023-02-07 Ali Abedi , Shehroz S. Khan

Recent advances in computer vision have made it possible to automatically assess from videos the manipulation skills of humans in performing a task, which breeds many important applications in domains such as health rehabilitation and…

Computer Vision and Pattern Recognition · Computer Science 2019-04-11 Zhenqiang Li , Yifei Huang , Minjie Cai , Yoichi Sato

Assessing human skill levels in complex activities is a challenging problem with applications in sports, rehabilitation, and training. In this work, we present SkillFormer, a parameter-efficient architecture for unified multi-view…

Computer Vision and Pattern Recognition · Computer Science 2025-10-06 Edoardo Bianchi , Antonio Liotta

This paper describes our solution for the video recognition task of ActivityNet Kinetics challenge that ranked the 1st place. Most of existing state-of-the-art video recognition approaches are in favor of an end-to-end pipeline. One…

Computer Vision and Pattern Recognition · Computer Science 2017-08-15 Yunlong Bian , Chuang Gan , Xiao Liu , Fu Li , Xiang Long , Yandong Li , Heng Qi , Jie Zhou , Shilei Wen , Yuanqing Lin

Due to burdensome data requirements, learning from demonstration often falls short of its promise to allow users to quickly and naturally program robots. Demonstrations are inherently ambiguous and incomplete, making correct generalization…

Machine Learning · Computer Science 2019-04-29 Wonjoon Goo , Scott Niekum

Learning action models from real-world human-centric interaction datasets is important towards building general-purpose intelligent assistants with efficiency. However, most existing datasets only offer specialist interaction category and…

Computer Vision and Pattern Recognition · Computer Science 2025-08-07 Liang Xu , Chengqun Yang , Zili Lin , Fei Xu , Yifan Liu , Congsheng Xu , Yiyi Zhang , Jie Qin , Xingdong Sheng , Yunhui Liu , Xin Jin , Yichao Yan , Wenjun Zeng , Xiaokang Yang

During surgical training, real-time feedback from trainers to trainees is important for preventing errors and enhancing long-term skill acquisition. Accurately predicting the effectiveness of this feedback, specifically whether it leads to…

Facial expression spotting is the preliminary step for micro- and macro-expression analysis. The task of reliably spotting such expressions in video sequences is currently unsolved. The current best systems depend upon optical flow methods…

Computer Vision and Pattern Recognition · Computer Science 2022-05-30 Chuin Hong Yap , Moi Hoon Yap , Adrian K. Davison , Connah Kendrick , Jingting Li , Sujing Wang , Ryan Cunningham

Deep visual recognition models are usually trained and evaluated using metrics such as loss and accuracy. While these measures show whether a model is improving, they reveal very little about how its internal representations change during…

Computer Vision and Pattern Recognition · Computer Science 2026-04-14 Hai La Quang , Hassan Ugail , Newton Howard , Cong Tran Tien , Nam Vu Hoai , Hung Nguyen Viet

There has been significant amount of research work on human activity classification relying either on Inertial Measurement Unit (IMU) data or data from static cameras providing a third-person view. Using only IMU data limits the variety and…

Computer Vision and Pattern Recognition · Computer Science 2019-06-03 Yantao Lu , Senem Velipasalar

Facial action units (AUs) are essential to decode human facial expressions. Researchers have focused on training AU detectors with a variety of features and classifiers. However, several issues remain. These are spatial representation,…

Computer Vision and Pattern Recognition · Computer Science 2016-08-03 Wen-Sheng Chu , Fernando De la Torre , Jeffrey F. Cohn

Egocentric videos capture how humans manipulate objects and tools, providing diverse motion cues for learning object manipulation. Unlike the costly, expert-driven manual teleoperation commonly used in training Vision-Language-Action models…

Robotics · Computer Science 2025-09-29 Tomoya Yoshida , Shuhei Kurita , Taichi Nishimura , Shinsuke Mori

We collected a new dataset that includes approximately eight hours of audiovisual recordings of a group of students and their self-evaluation scores for classroom engagement. The dataset and data analysis scripts are available on our…

Human-Computer Interaction · Computer Science 2023-04-19 Alpay Sabuncuoglu , T. Metin Sezgin

Human action recognition plays a critical role in healthcare and medicine, supporting applications such as patient behavior monitoring, fall detection, surgical robot supervision, and procedural skill assessment. While traditional models…

Computer Vision and Pattern Recognition · Computer Science 2025-08-01 Utkarsh Shandilya , Marsha Mariya Kappan , Sanyam Jain , Vijeta Sharma