Search Results for author: Lukas Hoyer

Found 16 papers, 11 papers with code

DGInStyle: Domain-Generalizable Semantic Segmentation with Image Diffusion Models and Stylized Semantic Control

no code implementations5 Dec 2023 Yuru Jia, Lukas Hoyer, Shengyu Huang, Tianfu Wang, Luc van Gool, Konrad Schindler, Anton Obukhov

Large, pretrained latent diffusion models (LDMs) have demonstrated an extraordinary ability to generate creative content, specialize to user data through few-shot fine-tuning, and condition their output on other modalities, such as semantic maps.

Autonomous Driving Domain Generalization +1

2D Feature Distillation for Weakly- and Semi-Supervised 3D Semantic Segmentation

no code implementations27 Nov 2023 Ozan Unal, Dengxin Dai, Lukas Hoyer, Yigit Baran Can, Luc van Gool

As 3D perception problems grow in popularity and the need for large-scale labeled datasets for LiDAR semantic segmentation increase, new methods arise that aim to reduce the necessity for dense annotations by employing weakly-supervised training.

2D Semantic Segmentation 3D Semantic Segmentation +3

SemiVL: Semi-Supervised Semantic Segmentation with Vision-Language Guidance

1 code implementation27 Nov 2023 Lukas Hoyer, David Joseph Tan, Muhammad Ferjad Naeem, Luc van Gool, Federico Tombari

In SemiVL, we propose to integrate rich priors from VLM pre-training into semi-supervised semantic segmentation to learn better semantic decision boundaries.

Segmentation Semi-Supervised Semantic Segmentation

SILC: Improving Vision Language Pretraining with Self-Distillation

no code implementations20 Oct 2023 Muhammad Ferjad Naeem, Yongqin Xian, Xiaohua Zhai, Lukas Hoyer, Luc van Gool, Federico Tombari

However, the contrastive objective used by these models only focuses on image-text alignment and does not incentivise image feature learning for dense prediction tasks.

Classification Contrastive Learning +8

LiDAR Meta Depth Completion

1 code implementation24 Jul 2023 Wolfgang Boettcher, Lukas Hoyer, Ozan Unal, Ke Li, Dengxin Dai

While using a single model, our method yields significantly better results than a non-adaptive baseline trained on different LiDAR patterns.

Depth Completion Monocular Depth Estimation

EDAPS: Enhanced Domain-Adaptive Panoptic Segmentation

1 code implementation ICCV 2023 Suman Saha, Lukas Hoyer, Anton Obukhov, Dengxin Dai, Luc van Gool

EDAPS significantly improves the state-of-the-art performance for panoptic segmentation UDA by a large margin of 20% on SYNTHIA-to-Cityscapes and even 72% on the more challenging SYNTHIA-to-Mapillary Vistas.

Domain Adaptation Instance Segmentation +2

Domain Adaptive and Generalizable Network Architectures and Training Strategies for Semantic Image Segmentation

3 code implementations26 Apr 2023 Lukas Hoyer, Dengxin Dai, Luc van Gool

As previous UDA&DG semantic segmentation methods are mostly based on outdated networks, we benchmark more recent architectures, reveal the potential of Transformers, and design the DAFormer network tailored for UDA&DG.

Domain Generalization Image Segmentation +2

MIC: Masked Image Consistency for Context-Enhanced Domain Adaptation

1 code implementation CVPR 2023 Lukas Hoyer, Dengxin Dai, Haoran Wang, Luc van Gool

MIC significantly improves the state-of-the-art performance across the different recognition tasks for synthetic-to-real, day-to-nighttime, and clear-to-adverse-weather UDA.

Image Classification object-detection +4

HRDA: Context-Aware High-Resolution Domain-Adaptive Semantic Segmentation

1 code implementation27 Apr 2022 Lukas Hoyer, Dengxin Dai, Luc van Gool

Therefore, we propose HRDA, a multi-resolution training approach for UDA, that combines the strengths of small high-resolution crops to preserve fine segmentation details and large low-resolution crops to capture long-range context dependencies with a learned scale attention, while maintaining a manageable GPU memory footprint.

Segmentation Semantic Segmentation +3

DAFormer: Improving Network Architectures and Training Strategies for Domain-Adaptive Semantic Segmentation

3 code implementations CVPR 2022 Lukas Hoyer, Dengxin Dai, Luc van Gool

It improves the state of the art by 10. 8 mIoU for GTA-to-Cityscapes and 5. 4 mIoU for Synthia-to-Cityscapes and enables learning even difficult classes such as train, bus, and truck well.

Semantic Segmentation Synthetic-to-Real Translation +1

Improving Semi-Supervised and Domain-Adaptive Semantic Segmentation with Self-Supervised Depth Estimation

1 code implementation28 Aug 2021 Lukas Hoyer, Dengxin Dai, Qin Wang, Yuhua Chen, Luc van Gool

Training deep networks for semantic segmentation requires large amounts of labeled training data, which presents a major challenge in practice, as labeling segmentation masks is a highly labor-intensive process.

Data Augmentation Domain Adaptation +5

Three Ways to Improve Semantic Segmentation with Self-Supervised Depth Estimation

1 code implementation CVPR 2021 Lukas Hoyer, Dengxin Dai, Yuhua Chen, Adrian Köring, Suman Saha, Luc van Gool

Training deep networks for semantic segmentation requires large amounts of labeled training data, which presents a major challenge in practice, as labeling segmentation masks is a highly labor-intensive process.

Data Augmentation Monocular Depth Estimation +2

Grid Saliency for Context Explanations of Semantic Segmentation

2 code implementations NeurIPS 2019 Lukas Hoyer, Mauricio Munoz, Prateek Katiyar, Anna Khoreva, Volker Fischer

Recently, there has been a growing interest in developing saliency methods that provide visual explanations of network predictions.

Image Classification Segmentation +1

A Robot Localization Framework Using CNNs for Object Detection and Pose Estimation

no code implementations3 Oct 2018 Lukas Hoyer, Christoph Steup, Sanaz Mostaghim

Object detection is performed on an external camera image of the operation zone providing robot bounding boxes for an identification and orientation estimation convolutional neural network.

object-detection Object Detection +1

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