Data · dataset · 2025
Rooftop Fredericton NB Sample
Listed in UNB Libraries Dataverse Research Data Repository
This dataset contains 1,498 rooftop samples from the city of Fredericton, New Brunswick, Canada.
Description
It is designed to support research in roof segmentation, roof geometry extraction, and 3D building reconstruction. The dataset includes: Orthophoto (7.2 cm resolution): High-resolution RGB aerial imagery.
Normalized Digital Surface Model (nDSM) of rooftops: Derived from LiDAR point clouds (6 p/m2) and resampled to match the resolution of the Orthophoto. Roof geometrical component masks: single-channel mask images where pixel values represent different roof geometrical components: Pixel values 1–59 represent individual roof planes (each instance has a unique ID). Pixel value of 70 indicates inlines (e.g., ridges, valleys).
Read the rest (1 more)
Pixel value of 71 indicates outlines (edges of roof structures). This dataset is provided under the Open Government License - New Brunswick (snb.ca/e/2000/data-E.html).
Links
Where it is published
- Dataverse dataset page dataverse.lib.unb.ca/dataset.xhtml?persistentId=doi%3A10.25545%2FO8U6RN ↗
landing page · from dataverse lib unb ca
- DOI doi.org/10.25545/o8u6rn ↗
DOI / persistent id · from dataverse lib unb ca
Catalogue records · 1
- Dataverse API dataverse.lib.unb.ca/api/datasets/:persistentId/?persistentId=doi%3A10.25545%2FO8U6… ↗
metadata API · from dataverse lib unb ca
Topics
- Stated by source
- Engineering
- From keywords
- Engineering
- Inferred from text
- Image 65%
Provenance · 1 source records, 9 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| UNB Libraries Dataverse Research Data Repository | doi:10.25545/O8U6RN | 12 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| concepts[field].dataverse_subject:engineering | source · dataverse lib unb ca | connector:dataverse_lib_unb_ca@1.0.0 | /subjects |
| concepts[field].local:field:engineering | mapping · dataverse lib unb ca | connector:dataverse_lib_unb_ca@1.0.0 | /subjects |
| concepts[modality].local:modality:image | enrichment · dataverse lib unb ca | keyword-concept-rules@1.0.0 | title+description (65%) |
| created_date | source · dataverse lib unb ca | connector:dataverse_lib_unb_ca@1.0.0 | |
| description | source · dataverse lib unb ca | connector:dataverse_lib_unb_ca@1.0.0 | /description |
| publication_date | source · dataverse lib unb ca | connector:dataverse_lib_unb_ca@1.0.0 | |
| title | source · dataverse lib unb ca | connector:dataverse_lib_unb_ca@1.0.0 | /name |
| updated_date | source · dataverse lib unb ca | connector:dataverse_lib_unb_ca@1.0.0 | |
| version_label | source · dataverse lib unb ca | connector:dataverse_lib_unb_ca@1.0.0 |