Smart Point Clouds: What If Every Point Knew What It Was

Point clouds still feel a little bit like magic to me. You walk through a room, a city, or even just your living room with a scanner or your phone, and you can recreate it afterwards. But on their own, point clouds aren't actually that smart. So what would it mean for every single point to know not just where it is, but what it is, and how it relates to everything around it?

My guest this week is Dr. Florent Poux, an adjunct professor, director of the 3D GeoData Academy, and author of 3D Data Science with Python. Florent has spent around 15 years on this one problem, and he developed the idea of the smart point cloud. And, as he pointed out just before we hit record, he's also a human, which we can't take for granted these days.

In this conversation, we get into:

• What a smart point cloud is, and the layers behind it: geometry, semantics, topology, and behavior
• How you build one, whether you start with a survey scanner, a drone, or a phone video
• Why foundation models are great at proposing meaning but terrible at being accountable for it
• Why the boring, older machine learning approach is sometimes the right choice
• What changes when you can query your data in plain language, and why an agent should query a graph rather than read billions of points
• Why you should build your own tools rather than rent everyone else's
• Where world models, wearables, and 3D Gaussian splats fit into all of this

And somewhere along the way, we come back to Borges and the old idea of a perfect one-to-one map of the world: beautiful, faithful, and completely useless.

If you work with point clouds, 3D data, or AI in the geospatial world, this one is worth your time.

Florent's 3D GeoData Academy and his book 3D Data Science with Python are great places to continue exploring.

https://learngeodata.eu/