Rays SensingDrone 3D · processing service

You fly, we process.

Send us the video of your drone flight, with the telemetry file if your drone records one. We return a textured 3D mesh, a dense point cloud, an orthophoto, an elevation model and the camera track. Processing runs on our own computers; your footage is not uploaded to third-party cloud services.

One flightfive outputs
Textured 3D mesh of an earthen dam embankment with intake tower, spillway channel and fields, seen at an angle
MESHOBJ + textures · GLB
POINT CLOUDPLY · LAS
ORTHOPHOTOGeoTIFF
ELEVATIONGeoTIFF
CAMERA TRACKJSON · CSV · KML
WHO FLIESYou, or your own pilot

One flight, five outputs

Choose the outputs you need. Each comes in formats that open in common tools.

OutputFormatsOpens in
Textured meshOBJ + textures, GLBBlender, game engines, web viewers
Dense point cloudPLY, LASCloudCompare, MeshLab, survey software
OrthophotoGeoTIFFGIS software such as QGIS or ArcGIS
Elevation modelGeoTIFFGIS software: heights, slopes, volumes
Camera trackJSON, CSV, KMLGoogle Earth, visual effects, your own algorithms
Orthophoto: dirt road, concrete spillway channel and fields below the dam
Open dataset · our pipeline · orthophoto
Elevation model, shaded and coloured by height: the dam crest stands highest, the spillway channel cuts into the ground
Open dataset · our pipeline · elevation model, coloured by height

Images on this page: processed by our pipeline from the open dataset “UAS survey on a small earthen dam in Romania” by Salvatore Manfreda, licensed CC BY 4.0. Reconstructed, cropped and rendered by us.

What it is used for

Stockpiles and excavations

An elevation model of stockpiles and excavations, flight after flight. You compute the volumes from it in your GIS software.

Construction progress

A model and an orthophoto of the site at each stage, to compare over time.

Roofs and facades

Look at a roof or a facade in 3D without scaffolding or a lift.

Terrain and drainage

Orthophotos and elevation models for planning, slopes and water run-off.

How to fly for good results

Most consumer and professional drones that record video will do. A few habits make the difference.

Illustration: an aggregates yard with stockpiles and a wheel loader; a drone flies over the yard, flown by the site operator standing by the site cabin Illustration
You fly: a grid over the whole area with plenty of overlap, then a slow circle around each stockpile. We process the video.
Six habits for a good flight
  1. 01

    Steady altitude and speed

    Fly at a constant height and a slow, even speed. Sudden turns and changes of height blur frames and leave gaps.

  2. 02

    Plenty of overlap

    Fly parallel lines close enough together that every part of the site appears in many frames, seen from slightly different positions.

  3. 03

    Orbit facades and stockpiles

    For a building or a stockpile, add a slow circle around it with the camera pointed at it, so every side is seen.

  4. 04

    Keep the telemetry file

    If your drone writes a telemetry or SRT file next to the video, send it too: it places the model on the map.

  5. 05

    Ground control points, when absolute accuracy matters

    For measurements tied to survey coordinates, lay out and survey ground control points before the flight. For shapes and relative measurements they are optional.

  6. 06

    Even light

    Fly in even daylight, avoid hard shadows and flying into the sun, and keep the lens clean.

What happens to your video

Every step runs on our own computers.

From drone video to 3D outputsYour flight video, with its telemetry file, is split into frames; the camera position of every frame is worked out, which also gives the camera track; matching the frames gives a dense point cloud, from which the textured mesh, the orthophoto and the elevation model are built. Everything after the video runs on our own computers.Flight video+ telemetry fileFramesCamera posesDensepoint cloudTextured meshOrthophotoElevation modelCamera trackOn our own computers
From your flight video to the outputs. Everything in the shaded area runs on our own computers.
The steps in words
  1. 01

    Frames

    We take still frames from the video and leave out blurred and repeated ones.

  2. 02

    Camera poses

    For every frame we work out where the camera was and where it pointed. This is also the camera track.

  3. 03

    Dense point cloud

    Matching the frames against each other gives a dense 3D point cloud of the site.

  4. 04

    Mesh, orthophoto, elevation model

    From the point cloud we build the textured mesh, the top-down orthophoto and the elevation model.

How to send the footage

  1. 01

    Share a download link

    Put the video and the telemetry file on your usual file-sharing service and paste the link in the form below. If you surveyed ground control points, put their coordinates file in the same shared folder. The form itself takes site plans and photos only.

  2. 02

    We look at a sample

    A short clip or the full flight; you can send the link later. We check the footage and tell you what it can give, or how to fly again if needed.

  3. 03

    Quote

    You receive a quote for the processing once we have seen a sample of the footage.

  4. 04

    Processing and delivery

    We process on our own computers and send the outputs as a download link, in the formats you chose.

Frequently asked

Which drones work?

Most consumer and professional drones that record video. A sharp image and a steady flight matter more than the drone model. If your drone writes a telemetry or SRT file, keep it.

How accurate is the model?

It depends on the flight (height, overlap, light) and on ground control. Without ground control points the model is best used for shapes, relative measurements and visual inspection; with surveyed ground control points it can be tied to survey coordinates. We tell you what to expect once we have seen a sample.

Do you fly the drone?

No. You fly, or your own pilot does, and we process the footage. The flight stays with the people who know the site.

More questions
Where is the footage processed?

On our own computers. It is not uploaded to third-party cloud services.

What does it cost?

Each job is quoted after we have seen a sample of the footage: the work depends on the footage and on the outputs you need.

Processing request

Send us a sample

Share a link to the footage and tell us what you need. We reply with what it can give and a quote.

What you receive, and attachments
  • What the footage can give, or how to fly again
  • A quote for the processing
  • The outputs, in the formats you choose

Video files are too large for this form: paste a download link to the footage. You can attach a site plan or photos.

Name and work email are required.

Outputs you need
Reply within one working day.

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