Third assignment for EE 495: Geospatial Vision and Visualization, Northwestern University, Spring 2020.

• Write a program using Bing maps tile system to automatically download aerial imagery (maximum resolution available) given a lat/lon bounding box (for example, [min_lat, max_lat, min_lon, max_lon]).
• Use OpenStreetMap (OSM) API to retrieve road network/map.
• Visualize the map, and then overlay the map on the satellite image.

• PIL
• OSMnx
• OpenCV

Aerial image:

OSM data:

Overlayed image:

Aerial image:

OSM data:

Overlayed image:

• Overlay doesn’t exactly match the roads.
  • It seems OSM data is a compressed to the middle.
  • This might be because the OSM data creates a lot of blank space on the sides.
• Aerial image for levelOfDetail of 18 has good enough quality, past that the code takes longer to run.
• Work for the future might include using different colors for different OSM edges and nodes as well as including landmark labels (acquired from OSM data).