no code implementations • 14 Oct 2024 • Adam Lilja, Erik Wallin, Junsheng Fu, Lars Hammarstrand
The performance gap to using all labels is reduced from 29. 6 to 3. 4 mIoU on Argoverse, and from 12 to 3. 4 mIoU on NuScenes utilising only 10% of the labelled data.
1 code implementation • 16 Jul 2024 • Erik Wallin, Lennart Svensson, Fredrik Kahl, Lars Hammarstrand
Moreover, we propose an approach to estimate the conditional distributions of scores given ID or OOD data, enabling probabilistic predictions of data being ID or OOD.
no code implementations • 24 Mar 2024 • Carl Lindström, Georg Hess, Adam Lilja, Maryam Fatemi, Lars Hammarstrand, Christoffer Petersson, Lennart Svensson
Specifically, we evaluate object detectors and an online mapping model on real and simulated data, and study the effects of different fine-tuning strategies. Our results show notable improvements in model robustness to simulated data, even improving real-world performance in some cases.
1 code implementation • CVPR 2024 • Adam Lilja, Junsheng Fu, Erik Stenborg, Lars Hammarstrand
Specifically, over $80$% of nuScenes and $40$% of Argoverse 2 validation and test samples are less than $5$ m from a training sample.
1 code implementation • 24 Jan 2023 • Erik Wallin, Lennart Svensson, Fredrik Kahl, Lars Hammarstrand
Open-set semi-supervised learning (OSSL) embodies a practical scenario within semi-supervised learning, wherein the unlabeled training set encompasses classes absent from the labeled set.
1 code implementation • 11 May 2022 • Erik Wallin, Lennart Svensson, Fredrik Kahl, Lars Hammarstrand
Following the success of supervised learning, semi-supervised learning (SSL) is now becoming increasingly popular.
no code implementations • 2 Sep 2021 • Jakob Sjudin, Martin Marcusson, Lennart Svensson, Lars Hammarstrand
PHD filtering is a common and effective multiple object tracking (MOT) algorithm used in scenarios where the number of objects and their states are unknown.
2 code implementations • CVPR 2021 • Paul-Edouard Sarlin, Ajaykumar Unagar, Måns Larsson, Hugo Germain, Carl Toft, Viktor Larsson, Marc Pollefeys, Vincent Lepetit, Lars Hammarstrand, Fredrik Kahl, Torsten Sattler
In this paper, we go Back to the Feature: we argue that deep networks should focus on learning robust and invariant visual features, while the geometric estimation should be left to principled algorithms.
1 code implementation • 18 Aug 2019 • Måns Larsson, Erik Stenborg, Carl Toft, Lars Hammarstrand, Torsten Sattler, Fredrik Kahl
In this paper, we propose a new neural network, the Fine-Grained Segmentation Network (FGSN), that can be used to provide image segmentations with a larger number of labels and can be trained in a self-supervised fashion.
1 code implementation • 16 Mar 2019 • Måns Larsson, Erik Stenborg, Lars Hammarstrand, Torsten Sattler, Mark Pollefeys, Fredrik Kahl
We show that adding the correspondences as extra supervision during training improves the segmentation performance of the convolutional neural network, making it more robust to seasonal changes and weather conditions.
no code implementations • 7 Nov 2018 • Maryam Fatemi, Karl Granström, Lennart Svensson, Francisco J. R. Ruiz, Lars Hammarstrand
The proposed method can handle uncertainties in the data associations and the cardinality of the set of landmarks, and is parallelizable, making it suitable for large-scale problems.
no code implementations • ECCV 2018 • Carl Toft, Erik Stenborg, Lars Hammarstrand, Lucas Brynte, Marc Pollefeys, Torsten Sattler, Fredrik Kahl
Robust and accurate visual localization across large appearance variations due to changes in time of day, seasons, or changes of the environment is a challenging problem which is of importance to application areas such as navigation of autonomous robots.
no code implementations • 16 Jan 2018 • Erik Stenborg, Carl Toft, Lars Hammarstrand
Robust cross-seasonal localization is one of the major challenges in long-term visual navigation of autonomous vehicles.
2 code implementations • CVPR 2018 • Torsten Sattler, Will Maddern, Carl Toft, Akihiko Torii, Lars Hammarstrand, Erik Stenborg, Daniel Safari, Masatoshi Okutomi, Marc Pollefeys, Josef Sivic, Fredrik Kahl, Tomas Pajdla
Visual localization enables autonomous vehicles to navigate in their surroundings and augmented reality applications to link virtual to real worlds.