activity
20162023
most citedNeBula: Quest for Robotic Autonomy in Challenging Environments; TEAM CoSTAR at the DARPA Subterranean Challenge

20 citations · 59 across the 18 of their papers we have counts for

collaborators

23 papers

cs.RO2023★ 1 cited

Direct LiDAR-Inertial Odometry and Mapping: Perceptive and Connective SLAM

Kenny Chen, Ryan Nemiroff, Brett T. Lopez

This paper presents Direct LiDAR-Inertial Odometry and Mapping (DLIOM), a robust SLAM algorithm with an explicit focus on computational efficiency, operational reliability, and rea…

cs.RO2023★ 3 cited

A Contracting Hierarchical Observer for Pose-Inertial Fusion

Brett T. Lopez

This work presents a contracting hierarchical observer that fuses position and orientation measurements with an IMU to generate smooth position, linear velocity, orientation, and I…

cs.RO2023

Joint On-Manifold Gravity and Accelerometer Intrinsics Estimation for Inertially Aligned Mapping

Ryan Nemiroff, Kenny Chen, Brett T. Lopez

Aligning a robot's trajectory or map to the inertial frame is a critical capability that is often difficult to do accurately even though inertial measurement units (IMUs) can obser…

cs.RO2023

Adaptive Coverage Path Planning for Efficient Exploration of Unknown Environments

Amanda Bouman, Joshua Ott, Sung-Kyun Kim +5

We present a method for solving the coverage problem with the objective of autonomously exploring an unknown environment under mission time constraints. Here, the robot is tasked w…

eess.SY2022

Unmatched Control Barrier Functions: Certainty Equivalence Adaptive Safety

Brett T. Lopez, Jean-Jacques Slotine

This work applies universal adaptive control to control barrier functions to achieve forward invariance of a safe set despite the presence of unmatched parametric uncertainties. Th…

cs.RO2022★ 3 cited

Direct LiDAR-Inertial Odometry: Lightweight LIO with Continuous-Time Motion Correction

Kenny Chen, Ryan Nemiroff, Brett T. Lopez

Aggressive motions from agile flights or traversing irregular terrain induce motion distortion in LiDAR scans that can degrade state estimation and mapping. Some methods exist to m…