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Manual labeling of gestures in robot-assisted surgery is labor intensive, prone to errors, and requires expertise or training. We propose a method for automated and explainable generation of gesture transcripts that leverages the abundance…

Computer Vision and Pattern Recognition · Computer Science 2023-03-17 Kay Hutchinson , Zongyu Li , Ian Reyes , Homa Alemzadeh

Automatic recognition and classification of tasks in robotic surgery is an important stepping stone toward automated surgery and surgical training. Recently, technical breakthroughs in gathering data make data-driven model development…

Robotics · Computer Science 2017-08-01 Mehrdad J. Bani , Shoele Jamali

This paper describes the design of a multi-camera optical tactile sensor that provides information about the contact force distribution applied to its soft surface. This information is contained in the motion of spherical particles spread…

Robotics · Computer Science 2020-06-24 Camill Trueeb , Carmelo Sferrazza , Raffaello D'Andrea

This paper presents a data-efficient approach to learning transferable forward models for robotic push manipulation. Our approach extends our previous work on contact-based predictors by leveraging information on the pushed object's local…

Robotics · Computer Science 2019-05-10 Jochen Stüber , Marek Kopicki , Claudio Zito

Counting objects in crowded scenes remains a challenge to computer vision. The current deep learning based approach often formulate it as a Gaussian density regression problem. Such a brute-force regression, though effective, may not…

Computer Vision and Pattern Recognition · Computer Science 2023-11-09 Yuehai Chen , Jing Yang , Badong Chen , Hua Gang , Shaoyi Du

Tissue manipulation is a frequently used fundamental subtask of any surgical procedures, and in some cases it may require the involvement of a surgeon's assistant. The complex dynamics of soft tissue as an unstructured environment is one of…

Human pose estimation is a major computer vision problem with applications ranging from augmented reality and video capture to surveillance and movement tracking. In the medical context, the latter may be an important biomarker for…

Computer Vision and Pattern Recognition · Computer Science 2021-05-11 Luca Schmidtke , Athanasios Vlontzos , Simon Ellershaw , Anna Lukens , Tomoki Arichi , Bernhard Kainz

Despite significant algorithmic advances in vision-based positioning, a comprehensive probabilistic framework to study its performance has remained unexplored. The main objective of this paper is to develop such a framework using ideas from…

Information Theory · Computer Science 2024-09-17 Haozhou Hu , Harpreet S. Dhillon , R. Michael Buehrer

During social interactions, people use auditory, visual, and haptic cues to convey their thoughts, emotions, and intentions. Due to weight, energy, and other hardware constraints, it is difficult to create devices that completely capture…

Human-Computer Interaction · Computer Science 2021-12-01 M. Salvato , Sophia R. Williams , Cara M. Nunez , Xin Zhu , Ali Israr , Frances Lau , Keith Klumb , Freddy Abnousi , Allison M. Okamura , Heather Culbertson

Fine-grained activity recognition enables explainable analysis of procedures for skill assessment, autonomy, and error detection in robot-assisted surgery. However, existing recognition models suffer from the limited availability of…

Robotics · Computer Science 2023-08-09 Kay Hutchinson , Ian Reyes , Zongyu Li , Homa Alemzadeh

In this thesis, we propose a pioneering work on sparse keypoints tracking across images using transformer networks. While deep learning-based keypoints matching have been widely investigated using graph neural networks - and more recently…

Computer Vision and Pattern Recognition · Computer Science 2022-03-25 Oleksii Nasypanyi , Francois Rameau

Lesion segmentation is inherently influenced by imaging uncertainty, arising from ill-defined lesion boundaries and inter-observer variability in diagnosis. To address this challenge, previous works formulated the multi-rater medical image…

Computer Vision and Pattern Recognition · Computer Science 2026-05-05 Ke Liu , Shangde Gao , Yichao Fu , Shuaike Shen , Shangqi Gao , Chunhua Shen

Multi-pedestrian trajectory prediction is an indispensable element of autonomous systems that safely interact with crowds in unstructured environments. Many recent efforts in trajectory prediction algorithms have focused on understanding…

Robotics · Computer Science 2022-02-04 Zhe Huang , Ruohua Li , Kazuki Shin , Katherine Driggs-Campbell

Most of the current inference techniques rely upon Bayesian inference on Probabilistic Graphical Models of observations and do predictions and classification on observations. However, there is very little literature on the mining of…

Machine Learning · Computer Science 2022-05-24 Sue Sin Chong

Tactile sensing in soft robots remains particularly challenging because of the coupling between contact and deformation information which the sensor is subject to during actuation and interaction with the environment. This often results in…

Robotics · Computer Science 2023-05-03 Delin Hu , Zhou Chen , Paul Baisamy , Zhe Liu , Francesco Giorgio-Serchi , Yunjie Yang

This work presents an approach for modelling and tracking previously unseen objects for robotic grasping tasks. Using the motion of objects in a scene, our approach segments rigid entities from the scene and continuously tracks them to…

Robotics · Computer Science 2022-08-24 Christian Rauch , Ran Long , Vladimir Ivan , Sethu Vijayakumar

Logic-Geometric Programming (LGP) is a powerful motion and manipulation planning framework, which represents hierarchical structure using logic rules that describe discrete aspects of problems, e.g., touch, grasp, hit, or push, and solves…

Robotics · Computer Science 2020-03-10 Jung-Su Ha , Danny Driess , Marc Toussaint

In this paper, we study weakly-supervised laparoscopic image segmentation with sparse annotations. We introduce a novel Bayesian deep learning approach designed to enhance both the accuracy and interpretability of the model's segmentation,…

Computer Vision and Pattern Recognition · Computer Science 2024-10-14 Zhou Zheng , Yuichiro Hayashi , Masahiro Oda , Takayuki Kitasaka , Kensaku Mori

Human motion prediction is an essential step for efficient and safe human-robot collaboration. Current methods either purely rely on representing the human joints in some form of neural network-based architecture or use regression models…

Robotics · Computer Science 2023-10-06 Aadi Kothari , Tony Tohme , Xiaotong Zhang , Kamal Youcef-Toumi

Dynamical System (DS) based Learning from Demonstration (LfD) allows learning of reactive motion policies with stability and convergence guarantees from a few trajectories. Yet, current DS learning techniques lack the flexibility to…

Robotics · Computer Science 2023-09-06 Tianyu Li , Nadia Figueroa