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This paper introduces Video2MR, a mixed reality system that automatically generates 3D sports and exercise instructions from 2D videos. Mixed reality instructions have great potential for physical training, but existing works require…

Human-Computer Interaction · Computer Science 2024-05-30 Keiichi Ihara , Kyzyl Monteiro , Mehrad Faridan , Rubaiat Habib Kazi , Ryo Suzuki

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

Camera-controlled video generation has made substantial progress, enabling generated videos to follow prescribed viewpoint trajectories. However, existing methods usually learn camera-specific conditioning through camera encoders, control…

Computer Vision and Pattern Recognition · Computer Science 2026-05-15 Yifan Wang , Tong He

Surgical instrument segmentation in robot-assisted surgery (RAS) - especially that using learning-based models - relies on the assumption that training and testing videos are sampled from the same domain. However, it is impractical and…

Computer Vision and Pattern Recognition · Computer Science 2021-03-25 Zixu Zhao , Yueming Jin , Bo Lu , Chi-Fai Ng , Qi Dou , Yun-Hui Liu , Pheng-Ann Heng

We present AlignNet, a model that synchronizes videos with reference audios under non-uniform and irregular misalignments. AlignNet learns the end-to-end dense correspondence between each frame of a video and an audio. Our method is…

Computer Vision and Pattern Recognition · Computer Science 2020-02-13 Jianren Wang , Zhaoyuan Fang , Hang Zhao

In collaborative tasks where humans work alongside machines, the robot's movements and behaviour can have a significant impact on the operator's safety, health, and comfort. To address this issue, we present a multi-stereo camera system…

Image and Video Processing · Electrical Eng. & Systems 2024-04-17 Gerasimos Arvanitis , Nikos Piperigkos , Christos Anagnostopoulos , Aris S. Lalos , Konstantinos Moustakas

Slow motion videos are becoming increasingly popular, but capturing high-resolution videos at extremely high frame rates requires professional high-speed cameras. To mitigate this problem, current techniques increase the frame rate of…

Computer Vision and Pattern Recognition · Computer Science 2020-04-22 Avinash Paliwal , Nima Khademi Kalantari

Learning to localize temporal boundaries of procedure steps in instructional videos is challenging due to the limited availability of annotated large-scale training videos. Recent works focus on learning the cross-modal alignment between…

Computer Vision and Pattern Recognition · Computer Science 2024-09-25 Yuxiao Chen , Kai Li , Wentao Bao , Deep Patel , Yu Kong , Martin Renqiang Min , Dimitris N. Metaxas

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

Surgical video segmentation is critical for AI to interpret spatial-temporal dynamics in surgery, yet model performance is constrained by limited annotated data. The SAM2 model, pretrained on natural videos, offers potential for zero-shot…

Computer Vision and Pattern Recognition · Computer Science 2025-11-27 Cheng Yuan , Jian Jiang , Kunyi Yang , Lv Wu , Rui Wang , Zi Meng , Haonan Ping , Ziyu Xu , Yifan Zhou , Wanli Song , Hesheng Wang , Yueming Jin , Qi Dou , Yutong Ban

We propose a Few-shot Learning pipeline for 3D skeleton-based action recognition by Joint tEmporal and cAmera viewpoiNt alIgnmEnt (JEANIE). To factor out misalignment between query and support sequences of 3D body joints, we propose an…

Computer Vision and Pattern Recognition · Computer Science 2022-11-01 Lei Wang , Piotr Koniusz

We present a novel approach for action recognition in UAV videos. Our formulation is designed to handle occlusion and viewpoint changes caused by the movement of a UAV. We use the concept of mutual information to compute and align the…

Computer Vision and Pattern Recognition · Computer Science 2023-11-17 Ruiqi Xian , Xijun Wang , Dinesh Manocha

Shared autonomy methods, where a human operator and a robot arm work together, have enabled robots to complete a range of complex and highly variable tasks. Existing work primarily focuses on one human sharing autonomy with a single robot.…

Autonomous driving systems require huge amounts of data to train. Manual annotation of this data is time-consuming and prohibitively expensive since it involves human resources. Therefore, active learning emerged as an alternative to ease…

Computer Vision and Pattern Recognition · Computer Science 2019-09-02 Javad Zolfaghari Bengar , Abel Gonzalez-Garcia , Gabriel Villalonga , Bogdan Raducanu , Hamed H. Aghdam , Mikhail Mozerov , Antonio M. Lopez , Joost van de Weijer

Ultrasound (US) is widely used for its advantages of real-time imaging, radiation-free and portability. In clinical practice, analysis and diagnosis often rely on US sequences rather than a single image to obtain dynamic anatomical…

Computer Vision and Pattern Recognition · Computer Science 2022-07-04 Jiamin Liang , Xin Yang , Yuhao Huang , Kai Liu , Xinrui Zhou , Xindi Hu , Zehui Lin , Huanjia Luo , Yuanji Zhang , Yi Xiong , Dong Ni

Traditional visual servoing methods suffer from serving between scenes from multiple perspectives, which humans can complete with visual signals alone. In this paper, we investigated how multi-perspective visual servoing could be solved…

Robotics · Computer Science 2023-12-27 Lei Zhang , Jiacheng Pei , Kaixin Bai , Zhaopeng Chen , Jianwei Zhang

Research in unpaired video translation has mainly focused on short-term temporal consistency by conditioning on neighboring frames. However for transfer from simulated to photorealistic sequences, available information on the underlying…

Computer Vision and Pattern Recognition · Computer Science 2021-08-20 Dominik Rivoir , Micha Pfeiffer , Reuben Docea , Fiona Kolbinger , Carina Riediger , Jürgen Weitz , Stefanie Speidel

Minimally invasive surgery is highly operator dependant with a lengthy procedural time causing fatigue to surgeon and risks to patients such as injury to organs, infection, bleeding, and complications of anesthesia. To mitigate such risks,…

Computer Vision and Pattern Recognition · Computer Science 2023-01-16 Mansoor Ali , Rafael Martinez Garcia Pena , Gilberto Ochoa Ruiz , Sharib Ali

Despite significant advancements in video generation and editing using diffusion models, achieving accurate and localized video editing remains a substantial challenge. Additionally, most existing video editing methods primarily focus on…

Computer Vision and Pattern Recognition · Computer Science 2024-05-24 Chong Mou , Mingdeng Cao , Xintao Wang , Zhaoyang Zhang , Ying Shan , Jian Zhang

Autonomous laparoscopic camera control must maintain a stable and safe surgical view under rapid tool-tissue interactions while remaining interpretable to surgeons. We present a strategy-grounded framework that couples high-level…

Robotics · Computer Science 2026-02-25 Keyu Zhou , Peisen Xu , Yahao Wu , Jiming Chen , Gaofeng Li , Shunlei Li