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4d voxel model of the world, building a digital twin of the planet

Building a 4D Digital Twin of the Planet

by Daniel ODonohue 14 min read

What is a voxel?. It’s a 3D volumetric pixel, a cubeBut voxels are nothing new. They’ve been used extensively in two key areas within computing. Computer games render worlds and use voxels instead of polygons. Minecraft is a good example — it’s a voxel rendered world. Gaming companies love voxels for their multi-resolution capability over polygons. Robotics uses voxels for image processing to reduce the size of LIDAR point clouds and to create small dynamic maps — or what we call VOG (Voxel Occupancy Grid) — for robots.

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