4CAD PointLab · Photogrammetry module

Drone photogrammetry software in your browser — 3D model, orthophoto and DSM from photos

Upload photos from a drone flight and PointLab calculates a textured 3D model, a colour point cloud, an orthophoto and digital surface and terrain models. Processing runs in the cloud on a GPU server — no installation and no powerful computer. Every result comes with an accuracy report.

Free for everyone until 30 November 2026 — a trial period before the official launch.

Up to 1,500 photos
GLB, OBJ, LAZ, GeoTIFF
Ground control points (GCP)
PDF report
Fotogrammetrie z dronu – barevné mračno bodů areálu vypočtené z fotek z náletu

Colour point cloud from 77 drone photos. Data: public OpenDroneMap “Aukerman” dataset, CC0.

How to create a 3D model from drone photos

1

Upload your photos

JPG, PNG or TIFF, up to 1,500 photos of up to 120 MB each. Drag and drop the whole folder; image positions from EXIF appear on the map before processing starts. Interrupted uploads resume.

2

Choose the quality

Fast preview, Standard, or High accuracy for buildings. Set the photo position accuracy (standard GPS or RTK) and, optionally, ground control points. You see the estimated time in advance.

3

Download the results

3D model, point cloud, orthophoto, DSM, DTM and PDF report. Processing runs in the cloud — results arrive even after you close the page.

What you get from drone photos

Textured 3D model

GLB and OBJ with textures for CAD, BIM and the web. In the model viewer, measure distances, switch to top view or go full screen.

Colour point cloud

LAZ in project coordinates. Open it in the point cloud viewer and classify it further in the Buildings, Forestry or Corridors modules.

Orthophoto

A measurable aerial map as GeoTIFF; the orthophoto and image positions are also shown on the map.

Digital surface and terrain model

DSM with buildings and trees and DTM of the bare ground, both as GeoTIFF.

Accuracy report

Photos used, ground sampling distance (GSD), reprojection error, tie points, deviation from GPS or ground control points (RMSE), coordinate system and scale.

Ground control points

A GCP file in OpenDroneMap format improves absolute positioning. The model is created even without GPS or ground control points — you then set the scale after export.

Accuracy in black and white

Every job includes a quality table: how many photos were used, ground resolution, reprojection error and deviation from GPS. Without ground control points, absolute positioning is as accurate as the drone's GPS, but the model dimensions are correct.

2 cm
deviation over a 10 m house length with ground control points (10.020 m vs 10.000 m)
+1 / +5 mm
eave and ridge height compared with reality
2.74 cm/px
ground resolution from 77 drone photos

Test: synthetic house 10 × 8 m, 73 photos, 5 ground control points; public OpenDroneMap “Aukerman” dataset.

Protokol přesnosti fotogrammetrie – rozlišení na zemi, reprojekční chyba a odchylka od GPS

Processing quality and accuracy, and files to download. Data: OpenDroneMap “Aukerman”, CC0.

Drone photogrammetry FAQ

What photogrammetry software do I need to install?

None. PointLab runs in Chrome, Edge or Firefox and processing takes place on a server in the EU, so you don't need a powerful computer.

How many drone photos do I need?

It processes up to 1,500 photos, each up to 120 MB. For a 3D model of a house, we recommend orbit flights at two heights with an oblique camera (45°) plus a nadir flight, with 70–80% overlap.

Photogrammetry or LiDAR?

Photogrammetry gives you a colour textured model and an orthophoto from a standard drone. LiDAR also measures the terrain under vegetation and tree stems. PointLab handles both — you classify point clouds from photos and from a laser scanner in the same modules.

Do I need ground control points?

Not necessarily. Without them, absolute positioning is as accurate as the drone's GPS and the dimensions are correct. Ground control points (GCP) or an RTK drone improve positioning; on the test house, the deviation was 2 cm over 10 m.

What formats can I download the results in?

3D model as GLB and OBJ with textures, colour point cloud as LAZ, orthophoto, DSM and DTM as GeoTIFF, and the accuracy report as PDF.

Where are the photos processed?

On GPU servers in the EU (Warsaw or Paris); if no GPU is available, processing runs on CPU. Before processing, you can turn on blurring of faces and licence plates: the app finds and blurs them in the photos, and the 3D model, orthophoto and point cloud are created from the blurred photos. Automatic detection may not find absolutely everything (very small, hidden or angled faces and plates).

More PointLab modules in every plan

Forest inventory

Every tree with height, DBH, crown and volume, volume per hectare and a stand map.

Forest inventory →

Corridors and mapping

Power line protection zones, railway clearance gauges, road slopes and road asset inventory.

Corridors and mapping →

Buildings and interiors

Building point cloud classification for scan to BIM, machine layouts and IFC models.

Buildings and interiors →

PointLab overview

All four modules, storage-based plans and verified accuracy in one place.

4CAD PointLab →

No scanner? We'll scan it for you

We offer 3D scanning services in the Czech Republic, Slovakia, Poland, Austria and Germany. We come on site, capture the data you need and use PointLab to prepare the output you need — a classified point cloud, a floor plan, a forest inventory, a power line inventory or a drone model. No need to buy a scanner or software.

Czech Republic

Nationwide, full service including the output.

Request scanning

Slovakia

All of Slovakia, communication in Slovak or Czech.

Request scanning

Poland

Projects in Poland, communication in English or German.

Request scanning

Austria

Projects in Austria, communication in German or English.

Request scanning

Germany

Projects in Germany, communication in German or English.

Request scanning

Tell us the location, scope and output you need — we'll get back to you within 24–48 hours. More about the service on our Drone mapping services page.

Contact us

We will be happy to advise you and call you back.
Leave us your contact details and our sales representative will get in touch as soon as possible to explain everything in detail.

By clicking Send message you confirm that you have read our privacy policy and agree that 4CAD solution s.r.o. may contact you with a business offer via the e-mail or phone number provided. You can change or withdraw this consent at any time.

Thank you.

Your message has been sent. We will get back to you within 24–48 hours.
Oops! Something went wrong while submitting the form.

Pricing: you pay for data volume, not features

PointLab is free for all users until 30 November 2026 — a trial period before the official launch. The plans below apply from 1 December 2026.

All plans include all four modules. The plan sets the storage for uploaded data and the number of users; additional users can be purchased.

Trial
2 GB
1 user
Start
10 GB
1 user
Profi
50 GB
3 users
Business
250 GB
10 users
Enterprise
1,000 GB
50 users

Pricing based on your data volume

As a guide: 1 GB of LAZ corresponds to roughly 25–40 million points, a 20-minute handheld scan takes 0.5–1.5 GB and a drone scan of one hectare of forest 0.2–0.5 GB. Tell us what data you work with and we'll prepare a quote.

Try PointLab on your own data

Create your account and upload your own point cloud or drone photos. Want to go through the results with us? Book a demo.

Lukáš Tisoň · 3D scanner sales · +420 735 084 982 · lukas.tison@4-cad.cz

Don't have your own scanner? We'll scan it for you — Czech Republic, Slovakia, Poland, Austria, Germany