Search Results for author: Patrik Persson

Found 7 papers, 5 papers with code

The LuViRA Dataset: Synchronized Vision, Radio, and Audio Sensors for Indoor Localization

1 code implementation10 Feb 2023 Ilayda Yaman, Guoda Tian, Martin Larsson, Patrik Persson, Michiel Sandra, Alexander Dürr, Erik Tegler, Nikhil Challa, Henrik Garde, Fredrik Tufvesson, Kalle Åström, Ove Edfors, Steffen Malkowsky, Liang Liu

The dataset includes color images, corresponding depth maps, inertial measurement unit (IMU) readings, channel response between a 5G massive multiple-input and multiple-output (MIMO) testbed and user equipment, audio recorded by 12 microphones, and accurate six degrees of freedom (6DOF) pose ground truth of 0. 5 mm.

Image Classification Indoor Localization +1

Quadrotor Control on $SU(2)\times R^3$ with SLAM Integration

no code implementations3 Oct 2021 Marcus Greiff, Patrik Persson, Zhiyong Sun, Karl Åström, Anders Robertsson

We present a trajectory tracking controller for a quadrotor unmanned aerial vehicle (UAV) configured on $SU(2)\times R^3$, and relate this result to a family of geometric tracking controllers on $SO(3)\times R^3$.

Simultaneous Localization and Mapping

Generic Merging of Structure from Motion Maps with a Low Memory Footprint

no code implementations24 Mar 2021 Gabrielle Flood, David Gillsjö, Patrik Persson, Anders Heyden, Kalle Åström

We use these representations to perform map merging so that the algorithm is invariant to the merging order and independent of the choice of coordinate system.

Trust Your IMU: Consequences of Ignoring the IMU Drift

2 code implementations15 Mar 2021 Marcus Valtonen Örnhag, Patrik Persson, Mårten Wadenbäck, Kalle Åström, Anders Heyden

In this paper, we argue that modern pre-integration methods for inertial measurement units (IMUs) are accurate enough to ignore the drift for short time intervals.

Monocular Depth Parameterizing Networks

1 code implementation21 Dec 2020 Patrik Persson, Linn Öström, Carl Olsson

For this purpose we propose a network structure that given an image provides a parameterization of a set of depth maps with feasible shapes.

Monocular Depth Estimation

Efficient Real-Time Radial Distortion Correction for UAVs

1 code implementation8 Oct 2020 Marcus Valtonen Örnhag, Patrik Persson, Mårten Wadenbäck, Kalle Åström, Anders Heyden

In this paper we present a novel algorithm for onboard radial distortion correction for unmanned aerial vehicles (UAVs) equipped with an inertial measurement unit (IMU), that runs in real-time.

Minimal Solvers for Indoor UAV Positioning

1 code implementation16 Mar 2020 Marcus Valtonen Örnhag, Patrik Persson, Mårten Wadenbäck, Kalle Åström, Anders Heyden

In this paper we consider a collection of relative pose problems which arise naturally in applications for visual indoor UAV navigation.

Motion Estimation Navigate

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