no code implementations • 24 Nov 2022 • David Schubert, Pritha Gupta, Marcel Wever
In anomaly detection, a prominent task is to induce a model to identify anomalies learned solely based on normal data.
1 code implementation • CVPR 2022 • Christiane Sommer, Lu Sang, David Schubert, Daniel Cremers
We present Gradient-SDF, a novel representation for 3D geometry that combines the advantages of implict and explicit representations.
no code implementations • ICCV 2021 • Nikolaus Demmel, David Schubert, Christiane Sommer, Daniel Cremers, Vladyslav Usenko
The square root formulation pervades three major aspects of our optimization-based sliding-window estimator: for bundle adjustment we eliminate landmark variables with nullspace projection; to store the marginalization prior we employ a matrix square root of the Hessian; and when marginalizing old poses we avoid forming normal equations and update the square root prior directly with a specialized QR decomposition.
6 code implementations • CVPR 2020 • Christiane Sommer, Vladyslav Usenko, David Schubert, Nikolaus Demmel, Daniel Cremers
Continuous-time trajectory representation has recently gained popularity for tasks where the fusion of high-frame-rate sensors and multiple unsynchronized devices is required.
no code implementations • 4 Nov 2019 • David Schubert, Nikolaus Demmel, Lukas von Stumberg, Vladyslav Usenko, Daniel Cremers
The visual part of the system performs a photometric bundle adjustment on a sparse set of points.
7 code implementations • 13 Apr 2019 • Vladyslav Usenko, Nikolaus Demmel, David Schubert, Jörg Stückler, Daniel Cremers
We reconstruct a set of non-linear factors that make an optimal approximation of the information on the trajectory accumulated by VIO.
no code implementations • ECCV 2018 • David Schubert, Nikolaus Demmel, Vladyslav Usenko, Jörg Stückler, Daniel Cremers
Neglecting the effects of rolling-shutter cameras for visual odometry (VO) severely degrades accuracy and robustness.
4 code implementations • 17 Apr 2018 • David Schubert, Thore Goll, Nikolaus Demmel, Vladyslav Usenko, Jörg Stückler, Daniel Cremers
For trajectory evaluation, we also provide accurate pose ground truth from a motion capture system at high frequency (120 Hz) at the start and end of the sequences which we accurately aligned with the camera and IMU measurements.