58 citations · 133 across the 34 of their papers we have counts for
16 papers · 1 filter
Chrono-Gymnasium: An Open-Source, Gymnasium-Compatible Distributed Simulation Framework
Bocheng Zou, Harry Zhang, Khailanii Slaton +5
High-fidelity physics simulation is essential for closing the sim-to-real gap in robotics and complex mechanical systems. However, the computational overhead of high-fidelity engin…
A Physics-Based Continuum Model for Versatile, Scalable, and Fast Terramechanics Simulation
Huzaifa Unjhawala, Luning Bakke, Harry Zhang +4
This paper discusses Chrono's Continuous Representation Model (called herein Chrono::CRM), a general-purpose, scalable, and efficient simulation solution for terramechanics problem…
Instance Performance Difference: A Metric to Measure the Sim-To-Real Gap in Camera Simulation
Bo-Hsun Chen, Dan Negrut
In this contribution, we introduce the concept of Instance Performance Difference (IPD), a metric designed to measure the gap in performance that a robotics perception task experie…
A physics-based sensor simulation environment for lunar ground operations
Nevindu M. Batagoda, Bo-Hsun Chen, Harry Zhang +2
This contribution reports on a software framework that uses physically-based rendering to simulate camera operation in lunar conditions. The focus is on generating synthetic images…
Enhancing Autonomous Navigation by Imaging Hidden Objects using Single-Photon LiDAR
Aaron Young, Nevindu M. Batagoda, Harry Zhang +4
Robust autonomous navigation in environments with limited visibility remains a critical challenge in robotics. We present a novel approach that leverages Non-Line-of-Sight (NLOS) s…
A Study on the Use of Simulation in Synthesizing Path-Following Control Policies for Autonomous Ground Robots
Harry Zhang, Stefan Caldararu, Aaron Young +8
We report results obtained and insights gained while answering the following question: how effective is it to use a simulator to establish path following control policies for an au…
Quantifying the Sim2real Gap for GPS and IMU Sensors
Ishaan Mahajan, Huzaifa Unjhawala, Harry Zhang +7
Simulation can and should play a critical role in the development and testing of algorithms for autonomous agents. What might reduce its impact is the ``sim2real'' gap -- the algor…
Zero-Shot Policy Transferability for the Control of a Scale Autonomous Vehicle
Harry Zhang, Stefan Caldararu, Sriram Ashokkumar +6
We report on a study that employs an in-house developed simulation infrastructure to accomplish zero shot policy transferability for a control policy associated with a scale autono…
POLAR-Sim: Augmenting NASA's POLAR Dataset for Data-Driven Lunar Perception and Rover Simulation
Bo-Hsun Chen, Peter Negrut, Thomas Liang +3
NASA's POLAR dataset contains approximately 2,600 pairs of high dynamic range stereo photos captured across 13 varied terrain scenarios, including areas with sparse or dense rock d…
Using a Bayesian-Inference Approach to Calibrating Models for Simulation in Robotics
Huzaifa Mustafa Unjhawala, Ruochun Zhang, Wei Hu +3
In robotics, simulation has the potential to reduce design time and costs, and lead to a more robust engineered solution and a safer development process. However, the use of simula…
Using simulation to design an MPC policy for field navigation using GPS sensing
Harry Zhang, Stefan Caldararu, Ishaan Mahajan +8
Modeling a robust control system with a precise GPS-based state estimation capability in simulation can be useful in field navigation applications as it allows for testing and vali…
Camera simulation for robot simulation: how important are various camera model components?
Asher Elmquist, Radu Serban, Dan Negrut
Modeling cameras for the simulation of autonomous robotics is critical for generating synthetic images with appropriate realism to effectively evaluate a perception algorithm in si…
ART/ATK: A research platform for assessing and mitigating the sim-to-real gap in robotics and autonomous vehicle engineering
Asher Elmquist, Aaron Young, Thomas Hansen +10
We discuss a platform that has both software and hardware components, and whose purpose is to support research into characterizing and mitigating the sim-to-real gap in robotics an…
Evaluating a GAN for enhancing camera simulation for robotics
Asher Elmquist, Radu Serban, Dan Negrut
Given the versatility of generative adversarial networks (GANs), we seek to understand the benefits gained from using an existing GAN to enhance simulated images and reduce the sim…
A performance contextualization approach to validating camera models for robot simulation
Asher Elmquist, Radu Serban, Dan Negrut
The focus of this contribution is on camera simulation as it comes into play in simulating autonomous robots for their virtual prototyping. We propose a camera model validation met…
A software toolkit and hardware platform for investigating and comparing robot autonomy algorithms in simulation and reality
Asher Elmquist, Aaron Young, Ishaan Mahajan +8
We describe a software framework and a hardware platform used in tandem for the design and analysis of robot autonomy algorithms in simulation and reality. The software, which is o…