Osm-yolo-crossings: AI import tool for zebra crossings

ivanbranco · August 4, 2023, 11:09am

I post it here in the forum since many people doesn’t read diaries entries. @NorthCrab shared in a diary entry his latest project. It’s a tool that autonomously detects and maps pedestrian crossings (zebras) in OpenStreetMap. You can find it here: GitHub

dieterdreist · August 4, 2023, 10:16pm

If I see it correctly this is based on orthographic imagery, which means it cannot detect a crossing type, just a crossing marking (which could be a traffic lights controlled crossing as well), right?

Minh_Nguyen · August 4, 2023, 10:51pm

Here are the tags it outputs:

github.com

Zaczero/osm-yolo-crossings/blob/def8ffbc492551c6c6fa963713e1a170fd14233b/crossing_type.py#L12-L28


      
          if crossing_type == CrossingType.UNCONTROLLED:
              return {
                  'highway': 'crossing',
                  'crossing': 'uncontrolled',
                  'crossing:markings': 'zebra',
              }
          elif crossing_type == CrossingType.TRAFFIC_SIGNALS:
              return {
                  'highway': 'crossing',
                  'crossing': 'traffic_signals',
                  'crossing:markings': 'zebra',
              }
          else:
              return {
                  'highway': 'crossing',
                  'crossing:markings': 'zebra',
              }

NorthCrab · August 5, 2023, 7:02am

For some context: I intend to support uncontrolled/traffic signals tagging at some point, but during development it turned out that it would be a much better idea to move it to a completely separate, and a new project, this way uncontrolled/traffic signals will be its own separate problem and I will have a lot of flexibility while working on it. I did have some initial success, so my hopes are up . When a new project is done, it would be able to “upgrade” ANY highway=crossing, not just the ones created by the YOLO project. At the moment, YOLO is only tagging highway crossing without crossing specification. This should be more than enough for now.