Point Cloud Classification for Urban Infrastructure

2024
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As part of data preparation for a tramway corridor project, Archizem executed point cloud classification based on datasets captured with the Trimble MX9 mobile scanning system. During processing, the main object classes within the urban environment were identified, including buildings, dynamic objects, road surfaces, ground, vegetation, noise, and other urban features.

A hybrid classification workflow was applied: initial automated processing was followed by comprehensive manual review and refinement. This approach ensured maximum classification accuracy, significantly improved data structure, and minimized errors inherent in the raw source material.

Consequently, the client received a well-organized and semantically structured point cloud. This optimized dataset enables the efficient subsequent creation of digital terrain models, 3D models, topographic plans, and technical drawings.

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Point Cloud Registration for Railway Infrastructure

Archizem specialists completed the registration of point clouds captured with the Trimble MX9 mobile mapping system during a survey of rail network infrastructure. Since data was collected in motion, the absolute accuracy was enhanced by refining the trajectory using survey targets installed on the ground and on structures. The achieved registration accuracy was up to 3 cm.
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Point Cloud Registration for Tramway Tracks

The Archizem engineering team performed the registration of point clouds captured with the Trimble MX9 mobile mapping system during a survey of tramway infrastructure. As data acquisition was performed in motion, geodetic control points were utilized to refine the scanner trajectory and ensure precise georeferencing, achieving a final registration accuracy of 1–2 cm.
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