The increasing adoption of oblique imagery in geospatial applications—ranging from urban modeling to infrastructure asset management—demands rigorous standards to ensure positional accuracy, radiometric consistency, and data interoperability. This workshop introduces Addendum VI of the ASPRS Positional Accuracy Standards, which establishes a formalized framework for the acquisition, processing, and integration of oblique imagery.
Developed by the ASPRS Photogrammetric Data Accuracy and Standards Committee (PDAD), the guidelines address:
- Sensor and system specifications, including multi-camera oblique configurations and geometric calibration
- Accuracy assessment methodologies tailored to oblique perspectives
- Radiometric and metadata standards for consistent data quality and traceability
- Mission planning for high-resolution, multi-angle image capture
- Data integration strategies for combining oblique and nadir imagery within 3D GIS and digital twin environments
The workshop will cover the following:
- The salient points of the specifications given in the guidelines and how they can be applied in practice.
- Case studies from large-scale to small-scale implementations, including wide-area to corridor oblique imagery collections, highlighting operational challenges and solutions in high-volume data environments.
- Real-world imagery projects using hybrid oblique camera systems integrated into lightweight pod systems on helicopters, enabling the creation of high-fidelity virtual reality city models.
- Oblique imagery collected by UAS for sub-centimeter, surveying-grade applications and sub-millimeter inspection of critical assets, including the associated geometric, operational, and processing challenges.
- How oblique imagery plays a significant role in Digital Twin creation, and why proper application of the guidelines is essential for this product.
Led by contributors to the standards, Srini Dharmapuri (Sanborn Map Company) and David Day (Vexcel Data Program), with real-world project contributions from Chad Evely (NV5) and Mohsen Miri (Phase One), this session provides a technical foundation for professionals seeking to implement or evaluate oblique imagery systems in compliance with the current standards.
This workshop is not automatically included with any registration. It can be added on through the general registration process.
Registration Add-On Cost: $215
