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A flexible calibration method with multi-stage optimization for the axial error of mobile mapping systems

Mobile mapping systems, which are equipped with a laser scanner, panoramic camera, and inertial navigation system, can flexibly and efficiently obtain precision point clouds. However, these systems require re-installation for each mission, which …

BCE-Net: Reliable Building Footprints Change Extraction based on Historical Map and Up-to-Date Images using Contrastive Learning

Automatic and periodic recompiling of building databases with up-to-date high-resolution images has become a critical requirement for rapidly developing urban environments. However, the architecture of most existing approaches for change extraction …

Multiscale Feature Fusion for the Multistage Denoising of Airborne Single Photon LiDAR

Compared with the existing modes of LiDAR, single-photon LiDAR (SPL) can acquire terrain data more efficiently. However, influenced by the photon-sensitive detectors, the collected point cloud data contain a large number of noisy points. Most of the …

An adaptive feature region-based line segment matching method for viewpoint-changed images with discontinuous parallax and poor textures

Many methods have been proposed to extract line segment (LS) correspondences for images with viewpoint variations. However, the matching performance on images with viewpoint variations is still limited due to the influence of discontinuous parallax …

Semantic maps for cross-view relocalization of terrestrial to UAV point clouds

To generate a complete 3D point cloud model for complex urban environments, data must be captured from both top-view and street-view sides due to the limited field of view of the sensors. Unmanned aerial vehicle-laser scanning (UAV-LS) point clouds …

Semi-Supervised Adversarial Recognition of Refined Window Structures for Inverse Procedural Façade Modelling

Deep learning methods are typically data-hungry and require many labelled samples. Unfortunately, the amount of effort required to label the data has significantly hindered the application of deep learning methods, especially in 3D modelling tasks …

Graph Neural Networks with Constraints of Environmental Consistency for Landslide Susceptibility Evaluation

In complex and heterogeneous geoenvironments, landslides exhibit varying features in different environments, and data in landslide inventories are imbalanced. Existing data-driven landslide susceptibility evaluation (LSE) methods overlook …

Meta-Learning an Intermediate Representation for Few-Shot Prediction of Landslide Susceptibility in Large Areas

Predicting a landslide susceptibility map (LSM) is essential for risk recognition and disaster prevention. Despite the successful application of data-driven approaches for LSM prediction, most methods generally apply a single global model to predict …

Cascaded Residual Attention Enhanced Road Extraction from Remote Sensing Images

Efficient and accurate road extraction from remote sensing imagery is important for applications related to navigation and Geographic Information System updating. Existing data-driven methods based on semantic segmentation recognize roads from images …

Efficient Procedural Modelling of Building Façades Based on Windows from Sketches

Realistic and delicate window models are in great demand for detailed LOD-3 urban reconstruction. However, current research tends to oversimplify the window models due to the difficulties in describing the complex window types and structure …