Observed arrival · 2026-09-28
OJAS 4D makes drone maps measurable—and shows the uncertainty
A drone-photogrammetry service that turns flight photos into maps and 3D models, then measures distance, area, and volume with uncertainty shown.
○Open
⊠Login
$Paid
†Ads
✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
- For
- Drone surveyors measuring terrain and site volumes
- Worth noticing
- The site reports 61.3 million elevation cells checked against an independent reader, with exact agreement.
Field notes
An upload is checked in the browser before files are sent: archives are unpacked locally, file types are identified from their contents, and incomplete uploads are refused. The homepage says two public survey flights were processed end to end; one 77-photo run took 29.1 minutes on a GPU worker, while the site also reports 44.2 minutes on CPU. It describes a faster reconstruction setting but says it shifted the map by about 15 cm, so it is not used.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
⊠LoginAccess appeared gated
$PaidCommerce or pricing visible
✦PrettyNotable craft visible
●ProPolished or operationally mature
◎NicheUnusually specific use
One card from the complete issue