Map Features in OpenStreetMap with Computer Vision • Hacker News Board

Re: Map Features in OpenStreetMap with Computer Vision

#41

Post by banana_dick_1 » Sun, Mar 23, 2025, 12:53 AM UTC

daavoo wrote: post #7

stereo wrote: post #4

Hi from the OpenStreetMap Foundation. Please don't add AI-detected features directly to the database. The algorithms have problems with false positives, and with mapping straight or rectangular objects as wobbly, as shown in the second-to-last screenshot. As a helper to detect missing features, this is a precious tool. But we still need human intervention to make sure the detected objects are drawn correctly. See als…

> straight or rectangular objects as wobbly, as shown in the second-to-last screenshot. This is a because the polygon is drawn as a mask in order to overlay it on the image. The actual polygon being uploaded doesn't have the wobbly features. It is True there are cases were the predicted polygon is wobbly and I encourage people to discard them. However I didn't publish this demo until I got a first version of the mode…

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Re: Map Features in OpenStreetMap with Computer Vision

#42

Post by banana_dick_2 » Sun, Mar 23, 2025, 12:54 AM UTC

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Re: Map Features in OpenStreetMap with Computer Vision

#43

Post by banana_dick_2 » Sun, Mar 23, 2025, 12:54 AM UTC

daavoo wrote: post #6

stereo wrote: post #4

Hi from the OpenStreetMap Foundation. Please don't add AI-detected features directly to the database. The algorithms have problems with false positives, and with mapping straight or rectangular objects as wobbly, as shown in the second-to-last screenshot. As a helper to detect missing features, this is a precious tool. But we still need human intervention to make sure the detected objects are drawn correctly. See als…

> But we still need human intervention to make sure the detected objects are drawn correctly. Hi, I am the author. The demo app and any provided code example includes a step asking a human to verify the detected features. You can't upload them automatically unless you modify the source code. I reiterate the human verification across the docs, linked post, and any code samples. I haven't ever uploaded features automat…

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Re: Map Features in OpenStreetMap with Computer Vision

#44

Post by banana_dick_2 » Sun, Mar 23, 2025, 12:54 AM UTC

daavoo wrote: post #27

boredpudding wrote: post #21

Earlier quoted context omitted.

I don't understand the 'human verification' aspect. Your docs show a simple image where the user can choose to keep a new object or not. [0] Afterwards it says: "The ones you chose to keep will be uploaded to OpenStreetMap using upload_osm.". This is uploading features automatically. The fact that it asks 'are you sure' is just silly. We all know if humans have to click yes 90% of the time, and no 10% of the time, th…

> This will generate a lot of data that volunteers will have to check and revert. This is just not true. The data can be easily identified with the `created_by` tag. And I have been reviewing myself any data uploaded with the demo (with a clear different criteria on what is good enough)

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Re: Map Features in OpenStreetMap with Computer Vision

#45

Post by banana_dick_2 » Sun, Mar 23, 2025, 12:54 AM UTC

daavoo wrote: post #38

pierotofy wrote: post #10

Worked on something similar a few months ago (albeit for smaller scale geographic data): https://github.com/uav4geo/GeoDeep

Hi there! That is some cool work, happy to chat and discuss ideas for collaboration :)

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Re: Map Features in OpenStreetMap with Computer Vision

#46

Post by banana_dick_2 » Sun, Mar 23, 2025, 12:54 AM UTC

ecommerceguy wrote: post #36

We used to call this heads up digitizing.

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Re: Map Features in OpenStreetMap with Computer Vision

#47

Post by banana_dick_3 » Sun, Mar 23, 2025, 12:55 AM UTC

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Re: Map Features in OpenStreetMap with Computer Vision

#48

Post by banana_dick_3 » Sun, Mar 23, 2025, 12:55 AM UTC

stereo wrote: post #4

Hi from the OpenStreetMap Foundation. Please don't add AI-detected features directly to the database. The algorithms have problems with false positives, and with mapping straight or rectangular objects as wobbly, as shown in the second-to-last screenshot. As a helper to detect missing features, this is a precious tool. But we still need human intervention to make sure the detected objects are drawn correctly. See als…

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Re: Map Features in OpenStreetMap with Computer Vision

#49

Post by banana_dick_3 » Sun, Mar 23, 2025, 12:55 AM UTC

echoangle wrote: post #25

IshKebab wrote: post #22

Earlier quoted context omitted.

That kind of defeats the point surely?

Well it can still detect features in the satellite image that are missing on the map. That would already be a large help, no?

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Re: Map Features in OpenStreetMap with Computer Vision

#50

Post by banana_dick_3 » Sun, Mar 23, 2025, 12:55 AM UTC

lmc wrote: post #26

daavoo wrote: post #16

Earlier quoted context omitted.

Hi, thanks for the feedback. I have disabled the hosted demo for now, and will remove the uploading part from the code in favor of showing an URL that will open the editor at the location. If its of any help, you can find any contributed polygon with the tag `created_by= https://github.com/mozilla-ai/osm-ai-helper `. Feel free to remove all of them (or I can do it myself once I access a PC). I will be happy to contin…

> I will be happy to continue the discussion on what is a good prediction or not. I have mapped a lot of swimming pools myself and edited and removed a lot of (presumably) human contributed polygons that looked worse (too my eyes) than the predictions I approved to be uploaded. Something else you need to be mindful of is that the mapbox imagery may be out of date, especially for the super zoomed in stuff (which comes…

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