Footprint LabBrowser demo

GEOSPATIAL REVIEW WORKFLOW

Review the structure outlines

Choose an outline, make a correction, then download your review.

Synthetic practice scene · Prepared outlines · Your edits stay in this browser
Try four common review problems

Correct the shifted edge on C-00001. Two adjacent roofs share C-00015: reject that outline and draw replacements. Reject the false detection C-00040. Add the missing roof near the bottom-right corner.

15 m
Select an outline or use the list
PendingAcceptedRejectedSelected
Fictional location · 150 × 150 m

What you can try here

Select an outline, accept or reject it, correct its boundary, or add a missing outline. Download your decisions and polygons when you are done.

Where the example comes from

A fixed-seed generator draws terrain, vegetation and varied roofs with 40 prepared outlines. Practice on shifted edges, a merged outline, a false detection and an omitted roof. No real place, source imagery or model output was used to make this scene.

The outlines are deliberate practice fixtures, not predictions or independent reference labels. The assigned 30 cm pixel size and fictional projected origin exercise coordinate conversion only. Exported coordinates must not be used as real-world observations.

What runs in the browser

Selection, drawing, boundary edits, decisions, review history and export run here. Your changes are kept on this device. Other visitors do not see them. Downloads are marked as synthetic demonstration records. No name or account is required. Compatible browser agents can also read review status and record decisions through the same local workflow.

Supporting engineering

The source package includes processing, revision-aware GIS exchange, tests and annotation-workflow code from the separate local application. This page does not run those Python or deep-learning services. Testing this interface is separate from measuring model accuracy or large-area processing performance.

Built independently by Robert Lane with substantial AI assistance in implementation and testing.

Download your review

GeoJSON contains the polygons in longitude and latitude, with each decision and note. Rejected and unresolved outlines are included with their status; filter them before using the file.

Full review record

The JSON record also includes the original outlines, source details and change history. It is a browser-demo format, not a direct import into the full local application.