Research

Research projects by Valeford. Source code, methods and evaluation records are published with the work.

Projects

Computer vision · Aerial imagery

Spacement PVExtent

Rooftop photovoltaic segmentation and vectorization from aerial orthophotos. The project studies how segmentation models transfer to current imagery in North Rhine-Westphalia.

The research record includes model comparisons, spatially separate evaluations, annotation protocols and documented failure cases.

Read projectSource code
Implementation
Python · PyTorch
Code license
Apache 2.0
Three aerial crops with PVExtent Vidda polygon and module-grid output. The right crop includes a skylight incorrectly detected as a photovoltaic array.

Vidda (V5) vectorization on three PV4GER test crops. The right crop includes a skylight incorrectly counted as a PV array. Roofs are assumed flat without a surface model; capacity and yield are estimates.

Figure provenanceImagery: GeoBasis NRW/openNRW · dl-de/zero-2-0