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Liao Wu

13 accepted papers

2024

Effects of fiber number and density on fiber jamming: Towards follow-the-leader deployment of a continuum robot

IROS 2024poster

Fiber jamming modules (FJMs) offer flexibility and quick stiffness variation, making them suitable for followthe-leader (FTL) motions in continuum robots, which is ideal for minimally invasive surgery (MIS). However, their potential has not been fully exploited, particularly in designing and manufac…

Cited by 1SourceScholar
2024

Hardware-Based Time Synchronization for a Multi-Sensor System

IROS 2024poster

Accurate time synchronization is crucial for multisensor fusion, which is widely used in mobile robotics, autonomous driving, and virtual reality. Despite many advancements, precise multi-sensor synchronization is still challenging due to the sensors’ internal characteristics, data filtering, disjoi…

Cited by 0SourceScholar
2021

SnakeRaven: Teleoperation of a 3D Printed Snake-like Manipulator Integrated to the RAVEN II Surgical Robot

IROS 2021poster

Telerobotic systems combined with miniaturised snake-like or elephant-trunk robotic arms can improve the ergonomics and accessibility in minimally invasive surgical tasks such as knee arthroscopy. Such systems, however, are usually designed in a specific and integral approach, making it expensive to…

Cited by 13SourceScholar
2020

A Novel Articulated Soft Robot Capable of Variable Stiffness through Bistable Structure

ICRA 2020poster

Soft robot has demonstrated promise in unstructured and dynamic environments due to unique advantages, such as safe interaction, adaptiveness, easy to actuate, and easy fabrication. However, the highly dissipative nature of elastic materials results in small stiffness of soft robot which limits cert…

Cited by 15SourceScholar
2019

Geometric interpretation of the general POE model for a serial-link robot via conversion into D-H parameterization

ICRA 2019poster

While Product of Exponentials (POE) formula has been gaining maturity in modeling the kinematics of a serial-link robot, the Denavit-Hartenberg (D-H) notation is still the most widely used due to its intuitive and concise geometric interpretation of the robot. This paper has developed an analytical…

Cited by 17SourcecodeScholar
2017

An Analytic Approach to Converting POE Parameters Into D-H Parameters for Serial-Link Robots

RA-L 2017

The Denavit-Hartenberg (D-H) model and the product of exponentials (POE) model have been two popular methods for modeling the kinematics of a serial-link robot. While these two models are equivalent in essence, no study has revealed how to convert from the POE model to the D-H model. The conversion

Cited by 35SourceScholar
2017

Dexterity Analysis of Three 6-DOF Continuum Robots Combining Concentric Tube Mechanisms and Cable-Driven Mechanisms

RA-L 2017

Continuum robots are increasingly used in minimally invasive surgeries. To date, the concentric tube mechanism and the cable-driven mechanism have been two prevalent mechanisms for constructing continuum robots. As these two mechanisms complement each other, it is worth exploring the possibility of

Cited by 61SourceScholar
2017

The ACRV picking benchmark: A robotic shelf picking benchmark to foster reproducible research

ICRA 2017poster

Robotic challenges like the Amazon Picking Challenge (APC) or the DARPA Challenges are an established and important way to drive scientific progress. They make research comparable on a well-defined benchmark with equal test conditions for all participants. However, such challenge events occur only o…

Cited by 102SourceScholar
2016

Development of a Multi-Channel Concentric Tube Robotic System With Active Vision for Transnasal Nasopharyngeal Carcinoma Procedures

RA-L 2016

Minimally invasive surgery-based nasopharyngeal cancer treatment is promising, but currently, it is not a common treatment choice because of the absence of suitable tools. In this letter, a multi-channel concentric tube robot is proposed for the treatment of nasopharyngeal cancer based on natural or

Cited by 46SourceScholar
2016

Towards hybrid control of a flexible curvilinear surgical robot with visual/haptic guidance

IROS 2016poster

Comprised of multiple telescoptic precurved tubes that can independently rotate and translate, concentric tube robots (CTRs) are favorable in minimally invasive surgeries thanks to their small size and considerable dexterity along with curvilinear accessibility. However, there is a lack of investiga…

Cited by 21SourceScholar
2015

Motion planning of continuum tubular robots based on centerlines extracted from statistical atlas

IROS 2015poster

Continuum tubular robots, which are constructed by telescoping pre-curved elastic tubes, are capable of balancing the force application and steerability during minimally invasive surgeries. These devices are able to reach the desired surgical sites in body cavities without colliding with critical bl…

Cited by 33SourceScholar