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4. 3D GIS, Virtual 3D City Models, 3D Visualization, VR/AR

News

Most providers of 3D modeling solutions now offer comprehensive processing pipelines. Users can either purchase hardware to process data locally, upload their datasets to web-based cloud platforms for automated model generation, or delegate the entire workflow—from data acquisition to final model production—to the service provider. Some vendors are also investing in real-time reconstruction, performing 3D modeling simultaneously with data capture. With the currently achieved accuracy of approximately 10 centimeters, such services are already highly valuable for rapid 3D scene reconstruction, particularly in the context of emergency response operations.

Specialization and Workflow Integration

A notable trend is the differentiation between companies that specialize in data acquisition (such as laser scanning, LiDAR, and photogrammetry) and those that focus on modeling, visualization, and analysis. While data acquisition providers are pushing the limits of mobility and precision through advanced sensor technologies, modeling platforms are increasingly integrating automated data processing, semantic enrichment, and visualization capabilities. The combination of data acquisition and modeling enables a rapid transition from raw point clouds to 3D city models, thereby bridging the gap between field data and digital twin applications. As automation in 3D modeling increases, the importance of accuracy validation and workflow integration also grows. Many solutions now focus on aligning BIM models with point cloud scans to ensure geometric precision and consistency across multiple data sources.

Visualization of a telecommunication tower using Gaussian splatting (left) and a 3D surface mesh (right) (Bentley, 2025)

Technical Details (Deep Dive)

The Rise of 3D Gaussian Splatting (3DGS)

One of the most prominent current trends in 3D reconstruction and visualization is the use of 3D Gaussian Splatting (3DGS) technology. Following significant advances in research, this technology has matured to a level where—largely due to its substantial practical benefits—it is increasingly being adopted in industrial applications. Several companies have implemented prototype 3DGS methods and workflows, demonstrated practical use cases, and announced plans to integrate this technology into future products and services. A key application area is the virtual inspection of infrastructure such as cable routes, bridges, or telecommunication towers. Nevertheless, the adoption of this technology faces several challenges, including the high hardware demands of real-time rendering, limited support from established 3D tools, and significant requirements for storage and data management.