no code implementations • 20 Nov 2024 • Erik Tegler, Magnus Oskarsson, Kalle Åström
Time delay estimation or Time-Difference-Of-Arrival estimates is a critical component for multiple localization applications such as multilateration, direction of arrival, and self-calibration.
2 code implementations • 11 Apr 2024 • William Ljungbergh, Adam Tonderski, Joakim Johnander, Holger Caesar, Kalle Åström, Michael Felsberg, Christoffer Petersson
We present a versatile NeRF-based simulator for testing autonomous driving (AD) software systems, designed with a focus on sensor-realistic closed-loop evaluation and the creation of safety-critical scenarios.
no code implementations • 28 Dec 2023 • Olivier Moliner, Sangxia Huang, Kalle Åström
We address the challenges in estimating 3D human poses from multiple views under occlusion and with limited overlapping views.
Ranked #5 on
3D Multi-Person Pose Estimation
on Panoptic
1 code implementation • 21 Jun 2023 • David Gillsjö, Gabrielle Flood, Kalle Åström
This paper presents a neural network based semantic plane detection method utilizing polygon representations.
1 code implementation • 10 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.
1 code implementation • CVPR 2023 • Yaqing Ding, Jian Yang, Viktor Larsson, Carl Olsson, Kalle Åström
One of the classical multi-view geometry problems is the so called P3P problem, where the absolute pose of a calibrated camera is determined from three 2D-to-3D correspondences.
1 code implementation • 13 Dec 2022 • Georg Hess, Adam Tonderski, Christoffer Petersson, Kalle Åström, Lennart Svensson
We also explore zero-shot classification and show that LidarCLIP outperforms existing attempts to use CLIP for point clouds by a large margin.
1 code implementation • 8 Sep 2022 • Aleksis Pirinen, Anton Samuelsson, John Backsund, Kalle Åström
To further mimic the situation on an actual UAV, the agent is not able to observe the search area in its entirety, not even at low resolution, and thus it has to operate solely based on partial glimpses when navigating towards the goal.
1 code implementation • 9 Aug 2022 • Axel Berg, Mark O'Connor, Kalle Åström, Magnus Oskarsson
Speaker localization using microphone arrays depends on accurate time delay estimation techniques.
1 code implementation • 1 Jun 2022 • David Gillsjö, Gabrielle Flood, Kalle Åström
Reconstruction of indoor surfaces with limited texture information or with repeated textures, a situation common in walls and ceilings, may be difficult with a monocular Structure from Motion system.
1 code implementation • 21 Apr 2022 • Adam Tonderski, Joakim Johnander, Christoffer Petersson, Kalle Åström
In order to make accurate predictions about the future, it is necessary to capture the dynamics in the scene, both object motion and the movement of the ego-camera.
no code implementations • 4 Feb 2022 • Olivier Moliner, Sangxia Huang, Kalle Åström
In this work, we study self-supervised representation learning for 3D skeleton-based action recognition.
no code implementations • 24 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.
2 code implementations • 15 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.
1 code implementation • 16 Oct 2020 • David Gillsjö, Kalle Åström
This work studies Semantic Scene Completion which aims to predict a 3D semantic segmentation of our surroundings, even though some areas are occluded.
1 code implementation • 8 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.
1 code implementation • Proceedings of the ACM on Computer Graphics and Interactive Techniques 2020 • Pontus Andersson, Jim Nilsson, Tomas Akenine-Möller, Magnus Oskarsson, Kalle Åström, Mark D. Fairchild
Image quality measures are becoming increasingly important in the field of computer graphics.
no code implementations • 20 May 2020 • Luca Ferranti, Kalle Åström, Magnus Oskarsson, Jani Boutellier, Juho Kannala
Given a network of receivers and transmitters, the process of determining their positions from measured pseudoranges is known as network self-calibration.
1 code implementation • 16 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.
no code implementations • 12 Mar 2018 • Viktor Larsson, Magnus Oskarsson, Kalle Åström, Alge Wallis, Zuzana Kukelova, Tomas Pajdla
In this paper we show how we can make polynomial solvers based on the action matrix method faster, by careful selection of the monomial bases.