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AEC Technology Glossary

Reality Capture

What is Point Cloud?

A point cloud is the raw output of 3D scanning: millions of individual points, each with a position (and often color), that together describe every surface the scanner saw. It is measurement data, not a model — nothing in it knows it is a wall.

In practice

Point clouds are the evidence layer: overlay them on the design model to verify as-built conditions, or model over them in scan-to-BIM. Their size (billions of points on large projects) makes processing and registration its own discipline.

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