Carleton University - School of Computer Science Honours Project
Fall 2018
Lego Infrared 3D Scanner
ABSTRACT
3D scanning has seen an increase in use over the past several years in fields like engineering, industrial
design, medicine, and robotics. Scanning equipment is still very expensive, often pushing it beyond the
grasp of most people. This project sought to build a working 3D scanner from inexpensive sensors and a
Lego Mindstorms robotics kit and determine if it was possible to generate accurate 3D models from the
sensor information. Multiple algorithms for outlier removal, noise reduction, surface smoothing, and
surface reconstruction were examined and implemented. Results showed that the resolution on infrared
distance sensors simply do not have the resolution and accuracy required for accurate models to be built.