Single-Shot End-to-end Road Graph Extraction - IRT Saint Exupéry - Institut de Recherche Technologique Accéder directement au contenu
Communication Dans Un Congrès Année : 2022

Single-Shot End-to-end Road Graph Extraction

Résumé

Automatic road graph extraction from aerial and satellite images is a long-standing challenge. Existing algorithms are either based on pixel-level segmentation followed by vectorization, or on iterative graph construction using next move prediction. Both of these strategies suffer from severe drawbacks, in particular high computing resources and incomplete outputs. By contrast, we propose a method that directly infers the final road graph in a single pass. The key idea consists in combining a Fully Convolutional Network in charge of locating points of interest such as intersections, dead ends and turns, and a Graph Neural Network which predicts links between these points. Such a strategy is more efficient than iterative methods and allows us to streamline the training process by removing the need for generation of starting locations while keeping the training end-to-end. We evaluate our method against existing works on the popular RoadTracer dataset and achieve competitive results. We also benchmark the speed of our method and show that it outperforms existing approaches. Our method opens the possibility of in-flight processing on embedded devices for applications such as real-time road network monitoring and alerts for disaster response.
Fichier principal
Vignette du fichier
bahl_cvprw22.pdf (9.47 Mo) Télécharger le fichier
bahl_cvprw22_SM.pdf (15.18 Mo) Télécharger le fichier
cvprw22.jpg (239.07 Ko) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)

Dates et versions

hal-03664624 , version 1 (11-05-2022)

Identifiants

  • HAL Id : hal-03664624 , version 1

Citer

Gaetan Bahl, Mehdi Bahri, Florent Lafarge. Single-Shot End-to-end Road Graph Extraction. CVPR 2022 – IEEE Conference on Computer Vision and Pattern Recognition EarthVision Workshop, Jun 2022, New Orleans (Louisiana), United States. ⟨hal-03664624⟩
164 Consultations
150 Téléchargements

Partager

Gmail Facebook X LinkedIn More