Re: [HOT] Getting the Bounding Boxes of the Validated Regions

2018-11-21 Thread Laurent Savaete
Hi Serkan, I am in the process of extending Mapswipe (http://www.missingmaps.org/) an app that is used to create some of the task manager task geometries. Together with Benni Herfort at Heidelberg university, we're setting up a workflow to help people validate building footprints produced by ML

Re: [HOT] Getting the Bounding Boxes of the Validated Regions

2018-11-20 Thread Serkan Karakulak
Hi Michael, I see, thank you. We'll make sure we handle those cases correctly then. Thank you very much for pointing that out. Best, Serkan On Tue, Nov 20, 2018, 11:51 AM Michael Heißmeier < michae...@digital-filestore.de wrote: > Hi Serkan, > > just to let you know: Task squares do not have

Re: [HOT] Getting the Bounding Boxes of the Validated Regions

2018-11-20 Thread Michael Heißmeier
Hi Serkan, just to let you know: Task squares do not have to be squares, they can have arbitrary polygon boundaries. You will find examples for these in nearly every project. Best Regards Michael Serkan Karakulak, 20.11.18 17:32: Thanks a lot, the geojson file seems to be more than enough

Re: [HOT] Getting the Bounding Boxes of the Validated Regions

2018-11-20 Thread Serkan Karakulak
Thanks a lot, the geojson file seems to be more than enough for us really:) Thanks you for your help, really appreciate it. Best, Serkan On Tue, Nov 20, 2018 at 11:28 AM Joseph Reeves wrote: > Hi Serkan, > > Glad I could be helpful :) > > 5 Coordinates because the feature is a polygon and the

Re: [HOT] Getting the Bounding Boxes of the Validated Regions

2018-11-20 Thread Serkan Karakulak
Oh didn't noticed that, thanks a lot! On Tue, Nov 20, 2018 at 11:19 AM Vao Matua wrote: > Serkan, > > The last value is the same as the first, it closes the polygon. > > On Tue, Nov 20, 2018 at 8:06 AM Serkan Karakulak wrote: > >> Hi Joseph, >> >> Thanks a lot, this was exactly what we needed

Re: [HOT] Getting the Bounding Boxes of the Validated Regions

2018-11-20 Thread Joseph Reeves
Hi Serkan, Glad I could be helpful :) 5 Coordinates because the feature is a polygon and the final coordinate duplicates the first - closing the polygon. It might be worth looking at the Task Manager github page to see if there's any plans to present coordinates via the API. I had a very quick

Re: [HOT] Getting the Bounding Boxes of the Validated Regions

2018-11-20 Thread Vao Matua
Serkan, The last value is the same as the first, it closes the polygon. On Tue, Nov 20, 2018 at 8:06 AM Serkan Karakulak wrote: > Hi Joseph, > > Thanks a lot, this was exactly what we needed indeed! Much appreciated, > thank you for your help. > > Is there a reason that there are five

Re: [HOT] Getting the Bounding Boxes of the Validated Regions

2018-11-20 Thread Serkan Karakulak
Hi Joseph, Thanks a lot, this was exactly what we needed indeed! Much appreciated, thank you for your help. Is there a reason that there are five coordinates for the tile btw, instead of four? Best, On Tue, Nov 20, 2018 at 10:10 AM Joseph Reeves wrote: > Hi Serkan, > > I've not looked into

Re: [HOT] Getting the Bounding Boxes of the Validated Regions

2018-11-20 Thread Serkan Karakulak
Thanks a lot for the discussions and your time. I will definitely try some quality control methods as you suggested. Sometimes more data also increase the accuracy even when it's noisy, that part is not an exact science unfortunately:) But I will try using only %100 validated tasks as you

Re: [HOT] Getting the Bounding Boxes of the Validated Regions

2018-11-20 Thread Joseph Reeves
Hi Serkan, I've not looked into this properly, but a quick look at a project on the Task Manager shows I can find a validated square: https://tasks.hotosm.org/project/5182?task=2212#bottom This task 2212 appears in the project geojson, and marked as validated:

Re: [HOT] Getting the Bounding Boxes of the Validated Regions

2018-11-20 Thread Pierre Béland
As John is saying, quality can vary a lot. You should look at the thread where I presented geometry quality analysis recently.https://lists.openstreetmap.org/pipermail/talk/2018-September/081392.html You need a more rigourus procedure where you can compare AI with contributors that operate in

Re: [HOT] Getting the Bounding Boxes of the Validated Regions

2018-11-20 Thread John Whelan
I've done a lot of validation in HOT.  Some is done by people with little experience so I don't think validated tiles would be much use to you.  Also be aware that some imagery can be three years out of date so the imagery can vary.  The sort of problems you'll run into are much of the HOT

Re: [HOT] Getting the Bounding Boxes of the Validated Regions

2018-11-20 Thread Georgy Potapov
Dear John, the question isn't about imports. Seems guys are preparing dataset to train and test models and they need to download data that's been already validated within Missing Maps, as a "ground truth". Is there a way to get the precise coordinates of the areas where this job is done or

Re: [HOT] Getting the Bounding Boxes of the Validated Regions

2018-11-20 Thread john whelan
Essentially you are proposing an import. There are OpenStreetMap rules about how this should be done. It can be done, Microsoft has released building outlines for the US which were created in this manner but the import itself is being done in sections by conventional mappers. You will need the

[HOT] Getting the Bounding Boxes of the Validated Regions

2018-11-19 Thread Serkan Karakulak
Hi, I am a graduate student in a Data Science program, and I wanted to get in touch with you because me and my two other friends are interested in working on a machine learning project to map areas using their satellite images and produce their labels. If we obtain a high accuracy, we thought it