3D Geodata Academy

3D Unsupervised Segmentation: Automate Labelling Without Ground Truth

STANDALONE MODULE. ALSO INCLUDED IN THE SEGMENTOR OS.

Segment 3D Data Without Labels

Use SegmentAnything 3D, region growing, Euclidean clustering, and RANSAC to split point clouds into meaningful parts with zero annotated data. 6 hands-on lessons. Real scans.

6
Hands-on lessons
8+
Hours of content
0
Training labels needed

Methods validated inside

AIRBUS CNES THALES META BMW ESRI

See unsupervised segmentation in action

From a raw point cloud to clustered, labelled output without a single annotated sample.

100%

Automation target. Every method in the course runs without labelled training data.

0

Students trained worldwide across 80 countries.

12+ yrs

Production experience distilled into structured, repeatable workflows.

You don’t have labelled data. You still need to segment.

Every segmentation tutorial assumes you already have a labelled dataset. Your reality looks different. You have a new LiDAR scan, a new site, a new client domain, and nobody labelled a single point. Training a PointNet++ model would cost months of annotation and six figures.

The real move is to skip training altogether. Foundation models like SAM plus classical clustering give you 80% of a supervised model’s quality with zero annotation. The engineers who master these unsupervised methods ship in days, not months.

Why unsupervised wins

Labelled 3D data is scarce and expensive. One annotated aerial scan can cost 50K+ EUR. Foundation models and clustering-based segmentation skip that cost entirely. You get to production 10x faster. This is the shortcut that changes everything.

What you’ll build

Six segmentation techniques. Zero annotated data required.

Adapt Meta's SAM foundation model to 3D point clouds. Project to 2D, segment, lift back to 3D.

SegmentAnything 3D

Adapt Meta’s SAM foundation model to 3D point clouds. Project to 2D, segment, lift back to 3D. Works on scans you have never seen before.

Classical region growing. Group points sharing similar normals and curvature.

Region growing

Classical region growing. Group points sharing similar normals and curvature. Still the best baseline for planar environments.

Graph-theory based clustering using KD-trees. Split disconnected objects instantly.

Euclidean clustering

Graph-theory based clustering using KD-trees. Split disconnected objects instantly. The workhorse for indoor and urban scenes.

RANSAC plane, cylinder, and sphere extraction. Find primitives in cluttered scenes with robust outlier rejection.

RANSAC shape detection

RANSAC plane, cylinder, and sphere extraction. Find primitives in cluttered scenes with robust outlier rejection.

Turn unsupervised output into a labelled dataset. Review, correct, export.

3D data labelling

Turn unsupervised output into a labelled dataset. Review, correct, export. Feed the result into supervised training when you need a custom model.

Combine foundation models with classical algorithms. Build a hybrid pipeline that handles whatever the client throws at you.

End-to-end pipeline

Combine foundation models with classical algorithms. Build a hybrid pipeline that handles whatever the client throws at you.

Note from Dr. Poux

I built this course after watching clients burn through six-figure annotation budgets that produced models with worse performance than a well-tuned unsupervised baseline. Every technique in here comes from real projects where we skipped the labelling step and shipped faster.

How this course works

Focused, hands-on, and weekend-sized.

100% asynchronous

Access everything 24/7 on the LMS. Self-paced. Finish in a weekend.

💻

Code-along projects

Complete Python source code for every method. Clone the repo, run it, adapt it to your data.

📊

Real datasets

Indoor scans, urban LiDAR, industrial captures. Real noise and real class imbalance, not synthetic toys.

🚀

Production patterns

Memory-efficient code, batch processing, error handling. Ready to drop into a real pipeline.

🔄

Lifetime access

One payment, permanent access. Every update included.

Upgrade path

This module is part of the Segmentor OS. Your purchase applies as credit if you upgrade later.

Standalone or OS

This is a focused, single-topic course on unsupervised segmentation. If you want the complete segmentation stack (PointNet++, RandLA-Net, algorithmic forge, HITL labelling, deployed app), consider the Segmentor OS instead. Your purchase here applies as credit if you upgrade.

The Curriculum

6 lessons. From foundation models to a shipped unsupervised pipeline.

Prerequisites

This course requires basic Python skills and comfort with point cloud data.

  • Python (mid-level): comfortable with classes, NumPy, virtual environments
  • Hardware: 16 GB RAM recommended. GPU helpful for SAM but not required for classical methods
  • Basic point cloud experience: understanding of XYZ coordinates, file formats, and Open3D helpful

No prior deep learning or foundation model experience required.

01SegmentAnything 3D
Foundation Models

Adapt SAM to 3D point clouds. Project to 2D, segment with the foundation model, lift results back to 3D. Zero training required.

SAM theory and architecture
3D to 2D projection strategies
SAM inference on projected views
Lifting 2D masks back to 3D
Multi-view consistency
02Region growing and clustering
Classical Methods

Two workhorse algorithms. Region growing for smooth surfaces. Euclidean clustering for disconnected objects.

Region growing from seed points
Normal and curvature thresholds
Euclidean clustering with KD-trees
Parameter tuning strategies
Benchmark evaluation
03RANSAC shape detection
Primitive Fitting

RANSAC for plane, cylinder, and sphere extraction. Robust outlier rejection in cluttered scenes.

RANSAC fundamentals
Plane extraction on ground surfaces
Cylinder and sphere fitting
Sequential RANSAC for multiple primitives
Combining with clustering
04End-to-end pipeline
Hybrid System

Combine foundation models with classical algorithms into a production pipeline. 3D data labelling output. Export to supervised training formats if you need one later.

Hybrid architecture design
Decision tree for method selection
3D data labelling workflow
Dataset export and conversion
Portfolio-ready project
Dr. Florent Poux, founder of the 3D Geodata Academy

Your instructor

Dr. Florent Poux

I’ve spent 12+ years in 3D geospatial: from field surveys with total stations to building AI systems for Fortune 500 companies. I published the O’Reilly book on 3D Data Science with Python. I’ve advised startups valued at over 15M EUR. I’ve held a professorship, taught at university, and led R&D for some of the largest organizations in the space.

I don’t teach syntax. I teach judgment. Every module is built around real decisions I’ve faced in production. Which neural renderer fits an industrial inspection job. How to architect a semantic pipeline that doesn’t choke on 500M points. When to use algorithmic methods and when to switch to deep learning.

15,000+ readers
O’Reilly author
PhD in 3D geospatial
12+ years in the field
ISPRS Award winner
1,500+ citations
Start Building with Me

What students say

Engineers and researchers working with 3D segmentation.

Get lifetime access

One payment. Every lesson, every update, every line of code.

3D Unsupervised Segmentation

Complete unsupervised module + source code + real datasets + lifetime updates

€197 one-time
  • 6 hands-on lessons (8+ hours)i
  • Complete Python source code + datasets
  • SegmentAnything 3D integration
  • Region growing + clustering + RANSAC
  • Lifetime access + all future updatesi
  • 90-day results guaranteei
Start Automating Now

Zero-risk guarantee: If you don’t see real results within 90 days, full refund. No questions.

SECURE CHECKOUT

The complete ecosystem

3D AI Architect Program

The complete spatial AI curriculum, delivered in 3 tiers. Pick the depth that matches where you are — Foundations to get moving, Professional for the full OS stack, Ultimate for live access and priority support.

  • 3D AI Acceleratori: 17 episodes in 6 acts
  • 3D Course Libraryi: 24+ standalone courses
  • All 4 OS courses (Professional & Ultimate tiers)
  • Neurones 3D software access
  • Monthly drop-in sessions with Dr. Poux (Ultimate)
  • Spatial AI job and market intel
  • Priority support + services access (Ultimate)
  • 300+ hours of content
Explore the Architect Program

What you’re getting access to

Everything I’ve built over 12+ years, from land surveying in the field to advising 15M EUR startups, compressed into one curriculum you can start today. Delivered by the first QUALIOPI-certified 3D geospatial academy.

2013
Engineer diploma in land surveying
ENGINEER
2015
Field surveyor + PhD research
2 YRS IN THE FIELD
2019
PhD in 3D geospatial AI
PhD DEFENDED
2020
ISPRS Dangermond Award + Professorship
1,500+ CITATIONS
2021
Fortune 500 R&D + startup advisor (15M+ EUR)
AIRBUS, CNES, BMW
2024
Splatting, Agents, Scene Graph R&D
FRONTIER
2025
O’Reilly book + 15K readers
60+ TUTORIALS
Today
15,000 students, 80 countries
QUALIOPI CERTIFIED
Enterprise-grade

Every pipeline was battle-tested on Fortune 500 projects processing billions of points. You’re getting the real playbook, not theory.

Research-backed

Methods validated by peer-reviewed publications, the ISPRS scientific community, and 1,500+ academic citations. Not guesswork.

Production-proven

Built by someone who surveyed in the field, defended a PhD, advised funded startups, and shipped products to Fortune 500 clients.

My commitment

I share more free content than most people put behind a paywall. That’s intentional. I want you to know exactly what you’re getting before you invest. This course is the concentrated, structured version of everything I know. No fluff. No filler. Just the production path.

Find the right path for you

From single courses to the complete ecosystem.

Feature Standalone Course 3D Unsupervised Segmentation Course Library 3D AI Architecti Enterprise
Courses included 1 topic 6 lessons Full catalogi 3 OS courses + Library (tiered) Custom
Hours of content 2-8h 8+ hours 150+ hours 300+ hours (tiered) Custom
Production source code
Lifetime access
3D AI Accelerator Tracki
Neurones 3D softwarei
Spatial AI job & market inteli
Monthly drop-in sessionsi
Priority support + services accessi ✓ tiered
Custom onboardingi
Team licensing
Price €97 – €497 €197 €1,297 Starts at €1,999 On request

Straight answers

Do I need prior deep learning experience?

No. You need basic Python and point cloud familiarity. I explain SAM and the foundation model concepts from scratch.

What hardware do I need?

Minimum 16 GB RAM. A CUDA GPU speeds up SAM inference but is not mandatory. Classical methods run fine on CPU.

How is this different from SAM tutorials online?

Online tutorials apply SAM to 2D images. This course adapts it to 3D point clouds via projection, then combines it with classical clustering for a hybrid pipeline that actually works on real scans.

Can I upgrade to the Segmentor OS later?

Yes. Your purchase applies as credit toward the Segmentor OS. Email me when you are ready to upgrade.

How long do I have access?

Lifetime. One payment, permanent access. Every future update included.

What’s the refund policy?

90 days. Apply the material. If you are not satisfied, email me for a full refund.

Will this replace supervised segmentation?

Not always. Unsupervised methods get you 80% of the way with zero labelling cost. For custom class taxonomies or maximum accuracy, you still need supervised training. This course teaches you when to pick which.

Not sure if this course fits?

If you have specific questions about how the curriculum applies to your role, your team’s needs, or your technical background, I’m happy to help you figure it out before you commit.

Book a 15-min call
Course fit and advisory questions only

Stop labelling. Start segmenting.

The gap between someone who waits on annotation and someone who ships unsupervised pipelines is exactly one course away.

Start Automating Now

90-day results guarantee. No questions asked.

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