Photogrammetry and CAD/GIS
Decision-ready geodata, from above.
From the site flight through the georeferenced orthophoto, surface model and CAD/GIS base map to the engineering interpretation of repeat monitoring.
Positioning
The flight is where data collection begins, not the end product.
Georeferencing, checking and engineering processing of the imagery is what makes the result directly usable for design, condition assessment or change detection over time. Accuracy and format requirements are derived from the purpose of the task.
Use in design
- georeferenced orthophoto and base map
- surface model, terrain model and point cloud
- delineation of structures, paving and vegetation
- CAD/GIS-compatible delivery and metadata
Use in monitoring
- repeat of an identical flight plan
- comparison of time-stamped states
- volume, surface and object change
- engineering interpretation and documented conclusion
Package logic
Three data packages matched to the decision need.
Entry package
Site flight, georeferenced orthophoto and a brief technical handover. For a quick, documented condition record.
Design package
Ground control points, orthophoto, CAD/GIS base map, DTM/DSM and metadata. Output that fits into a design workflow.
Monitoring package
Identical flight plan, time-stamped change detection and engineering interpretation. For repeat condition tracking and documented comparison.
Process
Flight planning, ground control, processing and quality control.
- Task and accuracy requirementDefinition of the intended use, the area, the delivery format and the level of detail required.
- Airspace and site checkReview of the flight environment, restrictions, weather, privacy and safety conditions.
- Field data captureFlight with planned overlap, with ground control and check points measured as required.
- Photogrammetric processingImage alignment, point cloud, orthophoto, surface model and derived vector data.
- QA and technical handoverAccuracy check, metadata, coordinate system, formats and documentation of applicability limits.
Aviation and surveying framework
Regulation (EU) 2019/947; Act XCVII of 1995; Act CLXXIX of 2020; Act XLVI of 2012; together with the rules on the right to one's image. The product does not replace the certified work of a licensed land surveyor where the law requires it.