Orthophotography Project Samples


High Resolution Orthophotography from Aircraft

3inchRGB.jpg

Aeroquest Mapcon was contracted to provide 5 cm pixel resolution colour orthophotography and high density LiDAR (20 points per square metre) for area covering 147 square km.

  • Captured early spring for leaf-off conditions
  • Horizontal accuracy of 12.5 cm RMSE (x,y)
  • LiDAR vertical accuracy  of 10 cm RMSE in non-vegetated areas
  • 4-band (R,G,B,NiR) orthophotography
  • 43 ground control points and 30 check points were acquired to maintain and check data accuracy.

Large area orthophotography from Aircraft

sask_sample.png

Aeroquest Mapcon was contracted over a 5 year period to provide orthophotography from an aircraft platform for 591,670 square km with 62.5 cm pixel resolution imagery.

  • The remote nature of the project and lack of existing ground control required a reliance on Airborne GPS and IMU for model generation. 
  • DEM was collected photogrammetrically in the form of mass points and breaklines to support the production of orthophotography.
  • Both colour and near infrared imagery was delivered.

High Resolution Orthophotography from UAV

2cmUAV.png

Aeroquest Mapcon was contracted to provide high resolution UAV orthophotography for a shoreline area for erosion monitoring.

  • 2 cm pixel resolution orthophotography
  • Delivery of 3D point cloud data/digital surface model, generated by image correlation

Very High Resolution Orthophotography from UAV

Houseboat_Foundation_5mm_3.png

Aeroquest Mapcon was contracted to provide high resolution orthophotography and point cloud for a houseboat foundation.

  • 0.5cm pixel resolution orthophotography
  • Delivery of 3D point cloud data/digital surface model, generated by image correlation.

Natural Colour Orthophotography from Satellite

50cm_satellite.png

Aeroquest Mapcon was contracted to provide orthorectified satellite imagery for approximately 265 square km in eastern Canada

  • 50 cm pixel, 3-band (RGB) image
  • Pleiades satellite

Natural Colour, Near Infrared, NDVI orthophotography

colour_IR_NDVI_sample_London.png

Aeroquest Mapcon was contracted to provide 4-band orthophotography for a tree canopy survey covering a 423 square km area. Image showing natural colour, near infra red, and normalized difference vegetation index (NDVI).

  • 15 cm natural colour and near infra red
  • New tree canopy collection in 3D softcopy environment
  • Classification of 25,579 predetermined sample points of tree status (live, dead, none)