Sanborn3D HD Maps for Autonomous Driving: Santa Clara

Major auto manufacturers have already released, or are soon to release self-driving cars, and for the vehicles to operate safely, purpose-built, accurate, and highly detailed map-based data sets are essential. To fill this need, Sanborn’s Advanced Technology Group used its proprietary HD Mapping technology to develop standardized, high-precision 3D base maps of the Silicon Valley area, and surrounding locations, via multi-camera aerial oblique images. Sanborn needed to create a 3D reality mesh and overlay the models with Sanborn HD maps.

Bentley’s ContextCapture application enabled Sanborn to create 3D engineering-ready reality meshes of the urban environment through Sanborn’s aerial imagery without needing to utilize 3D modelers to create a model of each building, which could have taken up to six months. The software created the 3D reality meshes swiftly and accurately, saving Sanborn investment costs and providing its automotive partners real-world context they can rely on when making design decisions. The combined, precise information was made available to Sanborn’s automotive partners in many formats and across desktop and mobile devices.

The real-world 3D data captured in a 3D reality mesh, overlaid with Sanborn HD maps for the Santa Clara area, is being used by automotive partners to simulate their autonomous driving solutions, showcase how their cars will handle different driving scenarios, and help them make informed decisions. Sanborn estimates that without Bentley software, the creation of such detailed 3D models would have required a team of three 3D modelers working continuously for six months at a cost of USD 100,000. This cost and timeframe would have precluded the entire project.

ContextCapture enabled the quick and high-quality modeling of 3D reality meshes, which form the basis for Sanborn’s HD maps. Using automation, the application eliminated the need to manually model each building and empowered Sanborn’s team to create the 3D mesh quickly and affordably. Descartes was used to for editing to clean up the mesh for complex buildings. Bentley software also provided a way to share information with partners easily and consistently.


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