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Occlusion-free video generation is challenging due to surgeons' obstructions in the camera field of view. Prior work has addressed this issue by installing multiple cameras on a surgical light, hoping some cameras will observe the surgical…

Computer Vision and Pattern Recognition · Computer Science 2025-03-06 Yuna Kato , Mariko Isogawa , Shohei Mori , Hideo Saito , Hiroki Kajita , Yoshifumi Takatsume

Learning to predict scene depth from RGB inputs is a challenging task both for indoor and outdoor robot navigation. In this work we address unsupervised learning of scene depth and robot ego-motion where supervision is provided by monocular…

Computer Vision and Pattern Recognition · Computer Science 2018-11-16 Vincent Casser , Soeren Pirk , Reza Mahjourian , Anelia Angelova

Deep learning models have achieved state-of-the- art performance in recognizing human activities, but often rely on utilizing background cues present in typical computer vision datasets that predominantly have a stationary camera. If these…

Robotics · Computer Science 2017-09-20 Fahimeh Rezazadegan , Sareh Shirazi , Ben Upcroft , Michael Milford

The dominant visual servoing approaches in Minimally Invasive Surgery (MIS) follow single points or adapt the endoscope's field of view based on the surgical tools' distance. These methods rely on point positions with respect to the camera…

Image and Video Processing · Electrical Eng. & Systems 2022-02-22 Martin Huber , John Bason Mitchell , Ross Henry , Sébastien Ourselin , Tom Vercauteren , Christos Bergeles

This paper introduces a novel deep-learning approach for human-to-robot motion retargeting, enabling robots to mimic human poses accurately. Contrary to prior deep-learning-based works, our method does not require paired human-to-robot…

Robotics · Computer Science 2024-04-09 Yashuai Yan , Esteve Valls Mascaro , Dongheui Lee

In this paper, we introduce a new framework for unsupervised deep homography estimation. Our contributions are 3 folds. First, unlike previous methods that regress 4 offsets for a homography, we propose a homography flow representation,…

Computer Vision and Pattern Recognition · Computer Science 2021-08-19 Nianjin Ye , Chuan Wang , Haoqiang Fan , Shuaicheng Liu

Some recent visual-based relocalization algorithms rely on deep learning methods to perform camera pose regression from image data. This paper focuses on the loss functions that embed the error between two poses to perform deep learning…

Computer Vision and Pattern Recognition · Computer Science 2022-05-05 Clémentin Boittiaux , Ricard Marxer , Claire Dune , Aurélien Arnaubec , Vincent Hugel

Estimating 2D camera motion is a fundamental computer vision task that models the projection of 3D camera movements onto the 2D image plane. Current methods rely on either homography-based approaches, limited to planar scenes, or meshflow…

Computer Vision and Pattern Recognition · Computer Science 2025-07-31 Haipeng Li , Tianhao Zhou , Zhanglei Yang , Yi Wu , Yan Chen , Zijing Mao , Shen Cheng , Bing Zeng , Shuaicheng Liu

Markerless motion capture has become an active field of research in computer vision in recent years. Its extensive applications are known in a great variety of fields, including computer animation, human motion analysis, biomedical…

Computer Vision and Pattern Recognition · Computer Science 2022-01-10 Doan Duy Vo , Russell Butler

Objective: Probe-based confocal endomicroscopy is an emerging high-magnification optical imaging technique that provides in vivo and in situ cellular-level imaging for real-time assessment of tissue pathology. Endomicroscopy could…

Registering images from different modalities is an active area of research in computer aided medical interventions. Several registration algorithms have been developed, many of which achieve high accuracy. However, these results are…

Computer Vision and Pattern Recognition · Computer Science 2018-06-29 Ayushi Sinha , Masaru Ishii , Russell H. Taylor , Gregory D. Hager , Austin Reiter

We design a new approach that allows robot learning of new activities from unlabeled human example videos. Given videos of humans executing the same activity from a human's viewpoint (i.e., first-person videos), our objective is to make the…

Robotics · Computer Science 2017-07-25 Jangwon Lee , Michael S. Ryoo

Deep homography estimation has broad applications in computer vision and robotics. Remarkable progresses have been achieved while the existing methods typically treat it as a direct regression or iterative refinement problem and often…

Computer Vision and Pattern Recognition · Computer Science 2026-01-27 Mengfan He , Liangzheng Sun , Chunyu Li , Ziyang Meng

Open, or non-laparoscopic surgery, represents the vast majority of all operating room procedures, but few tools exist to objectively evaluate these techniques at scale. Current efforts involve human expert-based visual assessment. We…

Computer Vision and Pattern Recognition · Computer Science 2020-12-15 Michael Zhang , Xiaotian Cheng , Daniel Copeland , Arjun Desai , Melody Y. Guan , Gabriel A. Brat , Serena Yeung

Reconstructing the scene of robotic surgery from the stereo endoscopic video is an important and promising topic in surgical data science, which potentially supports many applications such as surgical visual perception, robotic surgery…

Computer Vision and Pattern Recognition · Computer Science 2021-07-02 Yonghao Long , Zhaoshuo Li , Chi Hang Yee , Chi Fai Ng , Russell H. Taylor , Mathias Unberath , Qi Dou

The ability to successfully grasp objects is crucial in robotics, as it enables several interactive downstream applications. To this end, most approaches either compute the full 6D pose for the object of interest or learn to predict a set…

There are a multitude of emerging imaging technologies that could benefit robotics. However the need for bespoke models, calibration and low-level processing represents a key barrier to their adoption. In this work we present NOCaL, Neural…

Robotics · Computer Science 2022-10-19 Ryan Griffiths , Jack Naylor , Donald G. Dansereau

We present a novel method for intraoperative patient-to-image registration by learning Expected Appearances. Our method uses preoperative imaging to synthesize patient-specific expected views through a surgical microscope for a predicted…

Computer Vision and Pattern Recognition · Computer Science 2023-10-04 Nazim Haouchine , Reuben Dorent , Parikshit Juvekar , Erickson Torio , William M. Wells , Tina Kapur , Alexandra J. Golby , Sarah Frisken

Robot-assisted surgical systems have demonstrated significant potential in enhancing surgical precision and minimizing human errors. However, existing systems cannot accommodate individual surgeons' unique preferences and requirements.…

Robotics · Computer Science 2024-08-13 Amr Gomaa , Bilal Mahdy , Niko Kleer , Antonio Krüger

Surveillance videos and images are used for a broad set of applications, ranging from traffic analysis to crime detection. Extrinsic camera calibration data is important for most analysis applications. However, security cameras are…

Computer Vision and Pattern Recognition · Computer Science 2023-08-03 Giacomo D'Amicantonio , Egor Bondarau , Peter H. N. De With