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Eric Dexheimer

7 accepted papers

2022

GPS-Denied Global Visual-Inertial Ground Vehicle State Estimation via Image Registration

ICRA 2022poster

Robotic systems such as unmanned ground vehicles (UGVs) often depend on GPS for navigation in outdoor environments. In GPS-denied environments, one approach to maintain a global state estimate is localizing based on preexisting georeferenced aerial or satellite imagery. However, this is inherently c…

Cited by 8SourceScholar
2022

Information-Theoretic Online Multi-Camera Extrinsic Calibration

RA-L 2022

Calibration of multi-camera systems is essential for lifelong use of vision-based headsets and autonomous robots. In this work, we present an information-based framework for online extrinsic calibration of multi-camera systems. While previous work largely focuses on monocular, stereo, or strictly no

Cited by 20SourcecodeScholar
2021

LEO: Learning Energy-based Models in Factor Graph Optimization

CoRL 2021poster

We address the problem of learning observation models end-to-end for estimation. Robots operating in partially observable environments must infer latent states from multiple sensory inputs using observation models that capture the joint distribution between latent states and observations. This infer…

Cited by 21SourceScholar
2020

Efficient Multiresolution Scrolling Grid for Stereo Vision-based MAV Obstacle Avoidance

IROS 2020poster

Fast, aerial navigation in cluttered environments requires a suitable map representation for path planning. In this paper, we propose the use of an efficient, structured multiresolution representation that expands the sensor range of dense local grids for memory-constrained platforms. While similar…

Cited by 0SourceScholar
2020

Efficient Trajectory Library Filtering for Quadrotor Flight in Unknown Environments

IROS 2020poster

Quadrotor flight in cluttered, unknown environments is challenging due to the limited range of perception sensors, challenging obstacles, and limited onboard computation. In this work, we directly address these challenges by proposing an efficient, reactive planning approach. We introduce the Bitwis…

Cited by 8SourceScholar