Quandao Technology

We can arrange UAV surveying, oblique photogrammetry, and ground photography in China and Southeast Asia, subject to local flight permissions, airspace conditions, weather, course operations, and the agreed scope. For other regions, we can process data supplied by clients or local capture partners after reviewing data quality, coverage, and survey reference information.

Yes. Before production, we review image clarity, overlap, positioning information, spatial reference, and coverage completeness to determine whether the data supports the required orthophoto, DEM, point cloud, or 3D modeling output. If gaps are identified, we recommend supplementary capture or control information.

Yes. A pilot can cover a single hole, local terrain, one building, a clubhouse, or ancillary facilities. Once standards are confirmed, the same workflow can scale to a full 18-hole course, multiple courses, or volume asset production.

Yes. We confirm coordinates, scale, naming, model hierarchy, materials, performance budgets, and resource folders at kickoff. We can deliver Unity scenes, prefabs, and asset packages; specifications for other simulators or engines can be evaluated and implemented from client documentation.

A non-disclosure agreement can be signed for each engagement. Access to raw imagery, coordinate data, source models, working files, and final deliverables is restricted to authorized project members. These materials are not shared with third parties without authorization. Transfer methods, retention periods, delivery archives, and deletion procedures can be defined in the contract.

At kickoff, GSD, relative accuracy, elevation accuracy, spatial reference, control method, inspection method, and acceptance thresholds are defined separately. GSD describes ground sampling distance and does not directly represent horizontal or elevation accuracy. Final acceptance is based on project control data, checkpoints, processing reports, and the agreed deliverable list.