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Patrick Grady

7 accepted papers

2024

The Un-Kidnappable Robot: Acoustic Localization of Sneaking People

ICRA 2024poster

How easy is it to sneak up on a robot? We examine whether we can detect people using only the incidental sounds they produce as they move, even when they try to be quiet. To do so, we first collect a robotic dataset of high-quality 4-channel audio paired with 360° RGB data of people moving in differ…

Cited by 0SourceScholar
2023

Force/Torque Sensing for Soft Grippers using an External Camera

ICRA 2023poster

Robotic manipulation can benefit from wrist-mounted force/torque (F/T) sensors, but conventional F/T sensors can be expensive, difficult to install, and damaged by high loads. We present Visual Force/Torque Sensing (VFTS), a method that visually estimates the 6-axis F/T measurement that would be rep…

Cited by 7SourcecodeScholar
2023

Visual Contact Pressure Estimation for Grippers in the Wild

IROS 2023poster

Sensing contact pressure applied by a gripper can benefit autonomous and teleoperated robotic manipulation, but adding tactile sensors to a gripper's surface can be difficult or impractical. If a gripper visibly deforms, contact pressure can be visually estimated using images from an external camera…

Cited by 1SourcecodeScholar
2022

PressureVision: Estimating Hand Pressure from a Single RGB Image

ECCV 2022poster

"People often interact with their surroundings by applying pressure with their hands. While hand pressure can be measured by placing pressure sensors between the hand and the environment, doing so can alter contact mechanics, interfere with human tactile perception, require costly sensors, and scale…

2022

Visual Pressure Estimation and Control for Soft Robotic Grippers

IROS 2022poster

Soft robotic grippers facilitate contact-rich manipulation, including robust grasping of varied objects. Yet the beneficial compliance of a soft gripper also results in significant deformation that can make precision manipulation challenging. We present visual pressure estimation & control (VPEC), a…

Cited by 6SourcecodeScholar
2021

ContactOpt: Optimizing Contact To Improve Grasps

CVPR 2021poster

Physical contact between hands and objects plays a critical role in human grasps. We show that optimizing the pose of a hand to achieve expected contact with an object can improve hand poses inferred via image-based methods. Given a hand mesh and an object mesh, a deep model trained on ground truth…

Cited by 147PDFcodeScholar
2020

Learning to Collaborate From Simulation for Robot-Assisted Dressing

RA-L 2020

We investigated the application of haptic feedback control and deep reinforcement learning (DRL) to robot-assisted dressing. Our method uses DRL to simultaneously train human and robot control policies as separate neural networks using physics simulations. In addition, we modeled variations in human

Cited by 58SourceScholar