Search Results for author: Matthew Johnson-Roberson

Found 37 papers, 23 papers with code

Unifying Scene Representation and Hand-Eye Calibration with 3D Foundation Models

no code implementations17 Apr 2024 Weiming Zhi, Haozhan Tang, Tianyi Zhang, Matthew Johnson-Roberson

We demonstrate that JCR can build effective scene representations using a low-cost RGB camera attached to a manipulator, without prior calibration.

Decision Making

DarkGS: Learning Neural Illumination and 3D Gaussians Relighting for Robotic Exploration in the Dark

1 code implementation16 Mar 2024 Tianyi Zhang, Kaining Huang, Weiming Zhi, Matthew Johnson-Roberson

Humans have the remarkable ability to construct consistent mental models of an environment, even under limited or varying levels of illumination.

Customizable Perturbation Synthesis for Robust SLAM Benchmarking

1 code implementation12 Feb 2024 Xiaohao Xu, Tianyi Zhang, Sibo Wang, Xiang Li, Yongqi Chen, Ye Li, Bhiksha Raj, Matthew Johnson-Roberson, Xiaonan Huang

To this end, we propose a novel, customizable pipeline for noisy data synthesis, aimed at assessing the resilience of multi-modal SLAM models against various perturbations.

Benchmarking Simultaneous Localization and Mapping

Toward General-Purpose Robots via Foundation Models: A Survey and Meta-Analysis

no code implementations14 Dec 2023 Yafei Hu, Quanting Xie, Vidhi Jain, Jonathan Francis, Jay Patrikar, Nikhil Keetha, Seungchan Kim, Yaqi Xie, Tianyi Zhang, Shibo Zhao, Yu Quan Chong, Chen Wang, Katia Sycara, Matthew Johnson-Roberson, Dhruv Batra, Xiaolong Wang, Sebastian Scherer, Zsolt Kira, Fei Xia, Yonatan Bisk

Motivated by the impressive open-set performance and content generation capabilities of web-scale, large-capacity pre-trained models (i. e., foundation models) in research fields such as Natural Language Processing (NLP) and Computer Vision (CV), we devote this survey to exploring (i) how these existing foundation models from NLP and CV can be applied to the field of robotics, and also exploring (ii) what a robotics-specific foundation model would look like.

Learning Orbitally Stable Systems for Diagrammatically Teaching

no code implementations19 Sep 2023 Weiming Zhi, Tianyi Zhang, Matthew Johnson-Roberson

In this work, we tackle the problem of teaching a robot to approach a surface and then follow cyclic motion on it, where the cycle of the motion can be arbitrarily specified by a single user-provided sketch over an image from the robot's camera.

MORPH

Reasoning about the Unseen for Efficient Outdoor Object Navigation

1 code implementation18 Sep 2023 Quanting Xie, Tianyi Zhang, Kedi Xu, Matthew Johnson-Roberson, Yonatan Bisk

We introduce a new task OUTDOOR, a new mechanism for Large Language Models (LLMs) to accurately hallucinate possible futures, and a new computationally aware success metric for pushing research forward in this more complex domain.

Navigate Object

Instructing Robots by Sketching: Learning from Demonstration via Probabilistic Diagrammatic Teaching

no code implementations7 Sep 2023 Weiming Zhi, Tianyi Zhang, Matthew Johnson-Roberson

Diagrammatic Teaching aims to teach robots novel skills by prompting the user to sketch out demonstration trajectories on 2D images of the scene, these are then synthesised as a generative model of motion trajectories in 3D task space.

Hyperspherical Embedding for Point Cloud Completion

1 code implementation CVPR 2023 Junming Zhang, Haomeng Zhang, Ram Vasudevan, Matthew Johnson-Roberson

Most real-world 3D measurements from depth sensors are incomplete, and to address this issue the point cloud completion task aims to predict the complete shapes of objects from partial observations.

Multi-Task Learning Point Cloud Completion

Beyond NeRF Underwater: Learning Neural Reflectance Fields for True Color Correction of Marine Imagery

1 code implementation6 Apr 2023 Tianyi Zhang, Matthew Johnson-Roberson

The proposed technique integrates underwater light effects into a volume rendering framework with end-to-end differentiability.

LiSnowNet: Real-time Snow Removal for LiDAR Point Cloud

1 code implementation18 Nov 2022 Ming-Yuan Yu, Ram Vasudevan, Matthew Johnson-Roberson

LiDARs have been widely adopted to modern self-driving vehicles, providing 3D information of the scene and surrounding objects.

Snow Removal

Energy-optimal Three-dimensional Path-following Control of Autonomous Underwater Vehicles under Ocean Currents

no code implementations22 Mar 2022 Niankai Yang, Chao Shen, Matthew Johnson-Roberson, Jing Sun

In the first stage, the surge velocity, heave velocity, and pitch angle setpoints are optimized by minimizing the required vehicle propulsion energy under currents, and the line-of-sight (LOS) guidance law is used to generate the yaw angle setpoint that ensures path following.

Learning Rotation-Invariant Representations of Point Clouds Using Aligned Edge Convolutional Neural Networks

no code implementations2 Jan 2021 Junming Zhang, Ming-Yuan Yu, Ram Vasudevan, Matthew Johnson-Roberson

Point cloud analysis is an area of increasing interest due to the development of 3D sensors that are able to rapidly measure the depth of scenes accurately.

Data Augmentation Point Cloud Classification

BiTraP: Bi-directional Pedestrian Trajectory Prediction with Multi-modal Goal Estimation

1 code implementation29 Jul 2020 Yu Yao, Ella Atkins, Matthew Johnson-Roberson, Ram Vasudevan, Xiaoxiao Du

BiTraP estimates the goal (end-point) of trajectories and introduces a novel bi-directional decoder to improve longer-term trajectory prediction accuracy.

Autonomous Driving Collision Avoidance +4

Point Set Voting for Partial Point Cloud Analysis

1 code implementation9 Jul 2020 Jun-ming Zhang, Weijia Chen, Yu-Ping Wang, Ram Vasudevan, Matthew Johnson-Roberson

This paper illustrates that this proposed method achieves state-of-the-art performance on shape classification, part segmentation and point cloud completion.

Point Cloud Classification Point Cloud Completion

Pixel-Wise Motion Deblurring of Thermal Videos

1 code implementation8 Jun 2020 Manikandasriram Srinivasan Ramanagopal, Zixu Zhang, Ram Vasudevan, Matthew Johnson-Roberson

To address this problem, this paper formulates reversing the effect of thermal inertia at a single pixel as a Least Absolute Shrinkage and Selection Operator (LASSO) problem which we can solve rapidly using a quadratic programming solver.

Deblurring

Parametric Design of Underwater Optical Systems

1 code implementation14 Apr 2020 Gideon Billings, Eduardo Iscar, Matthew Johnson-Roberson

The design of optical systems for underwater vehicles is a complex process where the selection of cameras, lenses, housings, and operational parameters greatly influence the performance of the complete system.

Reachable Sets for Safe, Real-Time Manipulator Trajectory Design

1 code implementation5 Feb 2020 Patrick Holmes, Shreyas Kousik, Bohao Zhang, Daphna Raz, Corina Barbalata, Matthew Johnson-Roberson, Ram Vasudevan

At runtime, in each receding-horizon planning iteration, ARMTD constructs a reachable set of the entire arm in workspace and intersects it with obstacles to generate sub-differentiable and provably-conservative collision-avoidance constraints on the trajectory parameters.

Robotics

Shadow Transfer: Single Image Relighting For Urban Road Scenes

no code implementations23 Sep 2019 Alexandra Carlson, Ram Vasudevan, Matthew Johnson-Roberson

There have been impressive advances in the realm of image to image translation in transferring previously unseen visual effects into a dataset, specifically in day to night translation.

Image Relighting Image-to-Image Translation +1

On-Demand Trajectory Predictions for Interaction Aware Highway Driving

1 code implementation11 Sep 2019 Cyrus Anderson, Ram Vasudevan, Matthew Johnson-Roberson

Highway driving places significant demands on human drivers and autonomous vehicles (AVs) alike due to high speeds and the complex interactions in dense traffic.

Robotics Signal Processing

Stochastic Sampling Simulation for Pedestrian Trajectory Prediction

1 code implementation5 Mar 2019 Cyrus Anderson, Xiaoxiao Du, Ram Vasudevan, Matthew Johnson-Roberson

Our work demonstrates the effectiveness and potential of using simulation as a substitution for human annotation efforts to train high-performing prediction algorithms such as the DNNs.

Robotics

Guaranteed Safe Reachability-based Trajectory Design for a High-Fidelity Model of an Autonomous Passenger Vehicle

1 code implementation5 Feb 2019 Sean Vaskov, Utkarsh Sharma, Shreyas Kousik, Matthew Johnson-Roberson, Ramanarayan Vasudevan

Trajectory planning is challenging for autonomous cars since they operate in unpredictable environments with limited sensor horizons.

Systems and Control

SilhoNet: An RGB Method for 6D Object Pose Estimation

2 code implementations18 Sep 2018 Gideon Billings, Matthew Johnson-Roberson

Autonomous robot manipulation involves estimating the translation and orientation of the object to be manipulated as a 6-degree-of-freedom (6D) pose.

3D Pose Estimation 6D Pose Estimation +4

Bridging the Gap Between Safety and Real-Time Performance in Receding-Horizon Trajectory Design for Mobile Robots

1 code implementation18 Sep 2018 Shreyas Kousik, Sean Vaskov, Fan Bu, Matthew Johnson-Roberson, Ram Vasudevan

At runtime, the FRS is used to map obstacles to the space of parameterized trajectories, which allows RTD to select a safe trajectory at every planning iteration.

Robotics Systems and Control

Bio-LSTM: A Biomechanically Inspired Recurrent Neural Network for 3D Pedestrian Pose and Gait Prediction

no code implementations11 Sep 2018 Xiaoxiao Du, Ram Vasudevan, Matthew Johnson-Roberson

In applications such as autonomous driving, it is important to understand, infer, and anticipate the intention and future behavior of pedestrians.

Autonomous Driving

Modeling Camera Effects to Improve Visual Learning from Synthetic Data

1 code implementation21 Mar 2018 Alexandra Carlson, Katherine A. Skinner, Ram Vasudevan, Matthew Johnson-Roberson

Recent work has focused on generating synthetic imagery to increase the size and variability of training data for learning visual tasks in urban scenes.

object-detection Object Detection

Failing to Learn: Autonomously Identifying Perception Failures for Self-driving Cars

1 code implementation30 Jun 2017 Manikandasriram Srinivasan Ramanagopal, Cyrus Anderson, Ram Vasudevan, Matthew Johnson-Roberson

We show that a state-of-the-art detector, tracker, and our classifier trained only on synthetic data can identify valid errors on KITTI tracking dataset with an average precision of 0. 94.

Autonomous Driving Navigate +4

Safe Trajectory Synthesis for Autonomous Driving in Unforeseen Environments

2 code implementations28 Apr 2017 Shreyas Kousik, Sean Vaskov, Matthew Johnson-Roberson, Ramanarayan Vasudevan

Path planning for autonomous vehicles in arbitrary environments requires a guarantee of safety, but this can be impractical to ensure in real-time when the vehicle is described with a high-fidelity model.

Systems and Control Robotics

WaterGAN: Unsupervised Generative Network to Enable Real-time Color Correction of Monocular Underwater Images

1 code implementation23 Feb 2017 Jie Li, Katherine A. Skinner, Ryan M. Eustice, Matthew Johnson-Roberson

Due to the depth-dependent water column effects inherent to underwater environments, we show that our end-to-end network implicitly learns a coarse depth estimate of the underwater scene from monocular underwater images.

Generative Adversarial Network

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