[Talk-us] US Sports Fields Import

Rory McCann rory at technomancy.org
Tue Jan 2 13:30:35 UTC 2018


This is very interesting! And it's great to see some source code. I'd be
tempted to try this myself on things I'm interested in.

You mentioned that Microsoft has given permission for this, is that just
for your one specific thing, or can any OSMer run this on their area?
Can you post the documentation with the permission?

Since you're importing the resultant file into OSM, this isn't really
relevant, but you say "The two final output files are in the public
domain.". Surely these output files are basically derived from existing
OSM data, and would be under the ODbL?

I haven't looked at your data, or tried to run the code myself, but I'd
like to do it sometime.


On 30/12/17 20:51, Jason Remillard wrote:
> Hi,
> I have trained a neural network to find baseball, basketball, and
> baseball fields in satellite images. It was trained using OSM and bing
> tiles. Using the neural network I have mapped 2,800 new fields in the
> US northeast, I would like to import the missing fields back into OSM.
> Wiki project page :
> https://wiki.openstreetmap.org/wiki/US_Sports_Fields_Import_2018
> Github: https://github.com/jremillard/images-to-osm
> Details
> In November of 2017 all of the mapped baseball, basketball, and tennis
> courts in Massachusetts, New York, Connecticut, Rhode Island, and
> Pennsylvania were used to train a neural network.
> The import data was created by
> Running the neural network over the training Bing satellite images to
> identify the missing sports fields from OSM. Fields found by the
> network but not in OSM are passed to the next step.
> A visual QA script shows the newly mapped features over the Bing
> satellite images, the user approves or rejects the edits. I rejected
> any way that wasn't an excellent match to the satellite images.
> The final OSM files are created from the ways selected by myself in
> the visual QA script.
> The ways are tagged with leisure=pitch, plus the sport=* tag.
> The changeset tags will be comment="Imported data, phase 1,
> https://wiki.openstreetmap.org/wiki/US_Sports_Fields_Import_2018", and
> source="Bing", import=yes
> The jremillard-import account will be used to upload the 2 osm files.
> The OSM files are already split to be under the 10,000 item limit on a
> changeset. They will be uploaded with josm.
> Prior to starting the project I emailed Microsoft bing licensing group
> describing the project and received approval to use the Bing satellite
> images for this purpose. Also, the QA script qualifies as a visual
> editor in the existing OSM Bing license. The two final output files
> are in the public domain.
> Post Import Cleanup - Some imported ways may overlap with existing OSM
> data. Specifically, any sport fields added since November, sports
> fields that are tagged incorrectly, and sport fields that is a
> relation might overlap with the uploaded data. After the files are
> uploaded, all of the ways, and relations with the sport= tag will be
> checked for overlaps and manually fixed. It is expected that just a
> handful of issues will be found in the post cleanup.
> Jason
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