The analysis result
- The probability mask computed by the model (where it thinks it sees a pool);
- The number of pools detected and the confidence score;
- The tile coordinates (public map indices, e.g.
z19 / x / y).
Privacy
Privacy
When you run the worker, only minimal anonymous information is sent. Here it all is, without exception.
Exactly what is sent
When the worker analyzes a tile, it sends back to the server only:
Your contribution
- Pseudonym: optional — the name you enter if you wish (purely cosmetic);
- Anonymous ID: a UUID generated by your browser, with no link to your identity;
- Device: browser, platform (OS), type (mobile or desktop), and device model when the platform provides it.
Device information also helps us diagnose inference problems related to specific hardware — for example if the model behaves differently on a particular GPU or browser.
This information is sent only when you run the worker, and solely for assigning and coordinating contributions.
Analysis happens on your device
The AI model runs in your browser: your device does the computing, not a remote server. The server sends you aerial imagery to process and receives the result back — see the Technology and The model pages.
What we do not collect
- No account or password.
- No location data from your device.
- No tracking cookies.
- No ad trackers or third-party analytics tools.
- No data resale, to anyone.
Your ID
Your ID is a simple UUID generated by your browser and sent with your contributions. It is not linked to any personal information: it’s just a label to associate the tiles you analyze with you.
You can change it at any time from the app — a new ID is generated and the old one is no longer used. However, if you keep the same ID, it’s easier to track your contribution history: the total number of tiles analyzed and pools found remains associated with you across sessions.
Why it matters
The data you produce — masks and validations — will serve to enrich OpenStreetMap, an open geographic database. So it will be public by design and contain nothing personal: only the position of objects visible from the sky (swimming pools).
Privacy policy
Detailed terms
- Data sent. Only the fields listed above (mask, number of pools, score, tile coordinates, anonymous ID, device info, and pseudonym if provided), and only while the worker is running.
- Identity. No account. The ID is a UUID generated by your browser; it is stored in your browser and recorded on the server, linked to your contributions. You can change it at any time. The pseudonym is optional and purely cosmetic.
- Purpose. Improving OpenStreetMap with human-validated data, and providing emergency services with a more accurate map. Device info helps coordinate and attribute contributions, and diagnose inference problems specific to certain hardware.
- Sharing. The data produced (position of validated pools) will be fed back to OpenStreetMap under the ODbL license. It will be open and freely reusable.
- Cookies. The site does not set tracking cookies; no consent banner is needed.
- Contact. For any questions about your data: adrien.pre+geopisse +@+_ gmail.com.