← Search

Alexander Hardt-Stremayr

5 accepted papers

2021

Combined System Identification and State Estimation for a Quadrotor UAV

ICRA 2021poster

Precise system identification is an important aspect of adequate control design and parameter definition to allow for accurate and reliable navigation. While this is well known in robotics, the community working with small rotorcraft Unmanned Aerial Vehicles (UAVs) has yet to discover the benefits.…

Cited by 5SourceScholar
2021

VINSEval: Evaluation Framework for Unified Testing of Consistency and Robustness of Visual-Inertial Navigation System Algorithms

ICRA 2021poster

The research community presented significant advances in many different Visual-Inertial Navigation System (VINS) algorithms to localize mobile robots or hand-held devices in a 3D environment. While authors of the algorithms of-ten do compare to, at that time, existing competing approaches, their com…

Cited by 10SourceScholar
2020

Monocular Visual-Inertial Odometry in Low-Textured Environments with Smooth Gradients: A Fully Dense Direct Filtering Approach

ICRA 2020poster

State of the art visual-inertial odometry approaches suffer from the requirement of high gradients and sufficient visual texture. Even direct photometric approaches select a subset of the image with high-gradient areas and ignore smooth gradients or generally low-textured areas. In this work, we sho…

Cited by 8SourceScholar
2018

Key-Frame Strategy During Fast Image-Scale Changes and Zero Motion in VIO Without Persistent Features

IROS 2018poster

Many of today's Visual-Inertial Odometry (VIO)frameworks work well under regular motion but have issues and need special treatment under special motion. Here, special does not imply bad or corrupted data but stands for increased difficulty to treat clean data. Common special motion for VIO are large…

Cited by 6SourceScholar