NDCon Group: Paired LiDAR and Top-View Image Dataset for Railway Sleeper and Fastening Component Inspection

This dataset contains paired LiDAR point cloud data and top-view image data prepared for railway infrastructure inspection research. The dataset is focused on railway sleepers and fastening components. Each sample contains one sleeper and one fastening component represented by: one LiDAR point cloud file in .las format, one corresponding top-view image file in .png format, one sample metadata file in .json format. The LiDAR and image files are linked using a shared sample identifier. This work was supported by the Ministry of Investments, Regional Development and Informatization of the Slovak Republic under the project “Experimental Development of Intelligent Devices and Connected Sensors for the Detection of Defects and Failures of Railway Track Superstructure Using AI and ML,” Contract No. CEZ MIRRI SR: 266/2026.