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Daniel Adolfsson

7 accepted papers

2026

CFEAR-Teach-And-Repeat: Fast and Accurate Radar-Only Localization

ICRA 2026poster

Reliable localization in prior maps is essential for autonomous navigation, particularly under adverse weather, where optical sensors may fail. We present CFEAR-TR, a teach-and-repeat localization pipeline using a single spinning radar, which is designed for easily deployable, lightweight, and robus…

2025

Introspective Loop Closure for SLAM with 4D Imaging Radar

ICRA 2025

Simultaneous Localization and Mapping (SLAM) allows mobile robots to navigate without external positioning systems or pre-existing maps. Radar is emerging as a valuable sensing tool, especially in vision-obstructed environments, as it is less affected by particles than lidars or cameras. Modern 4D i

Cited by 2SourceScholar
2023

TBV Radar SLAM - Trust but Verify Loop Candidates

RA-L 2023

Robust SLAM in large-scale environments requires fault resilience and awareness at multiple stages, from sensing and odometry estimation to loop closure. In this work, we present TBV (Trust But Verify) Radar SLAM, a method for radar SLAM that introspectively verifies loop closure candidates. TBV Rad

Cited by 23SourcecodeScholar
2021

CFEAR Radarodometry - Conservative Filtering for Efficient and Accurate Radar Odometry

IROS 2021poster

This paper presents an accurate, highly efficient and learning free method for large-scale radar odometry estimation. By using a simple filtering technique that keeps the strongest returns, we produce a clean radar data representation and reconstruct surface normals for efficient and accurate scan m…

Cited by 53SourceScholar
2021

NDT-Transformer: Large-Scale 3D Point Cloud Localisation using the Normal Distribution Transform Representation

ICRA 2021poster

3D point cloud-based place recognition is highly demanded by autonomous driving in GPS-challenged environments and serves as an essential component (i.e. loop-closure detection) in lidar-based SLAM systems. This paper proposes a novel approach, named NDT-Transformer, for real-time and large-scale pl…

Cited by 117SourcecodeScholar
2020

Localising Faster: Efficient and precise lidar-based robot localisation in large-scale environments

ICRA 2020poster

This paper proposes a novel approach for global localisation of mobile robots in large-scale environments. Our method leverages learning-based localisation and filtering-based localisation, to localise the robot efficiently and precisely through seeding Monte Carlo Localisation (MCL) with a deeplear…

Cited by 51SourceScholar
2017

Incorporating ego-motion uncertainty estimates in range data registration

IROS 2017poster

Local scan registration approaches commonly only utilize ego-motion estimates (e.g. odometry) as an initial pose guess in an iterative alignment procedure. This paper describes a new method to incorporate ego-motion estimates, including uncertainty, into the objective function of a registration algo…

Cited by 7SourceScholar