True Orthophoto

Compared to conventional ortho mosaic where the image rectification is only done at ground level, every visible feature on a true orthophoto is perfectly rectified, whether it’s on the ground or above. Therefore, buildings, lampposts, poles, etc., are rectified in a perfect plan view.


Key Features

  • Image resolution: 5 cm in urban centers 20 cm elsewhere within city boundaries
  • Planimetric accuracy: 5 cm (RMSE)
  • Tiled using a 1 km x 1 km tiling grid
  • Geotiff (.TIFF) file format compatible with most geographic information systems (GIS)
  • Mapping projection: Modified Transverse Mercator (MTM), NAD83 CSRS
  • Vertical datum: CGVD28 HT2.0