A 3D Scanner System for Building the Prosthetic Leg Model Based on the Reality Capture Technique

This paper is about a 3D scanner system which can be used to build the prosthetic leg model, which can effectively capture details of the amputated leg. It is a multi-camera scanning system that can scan the amputated leg and has the following strength: quick scan, ease operation, data reliability and low cost. A scanner base is designed to hold all the cameras and Raspberry Pi. The scanner base should be able to rotate, adjust the shooting angle, and adjust the distance between the camera and the object. The images obtained by cameras can be transmitted to the PC through the Putty and FileZilla. Then the images can be processed on the Autodesk Recap to get the depth of field information of the object and build the 3D model. The principles of the image-based modelling techniques also illustrated in the paper. The 3D model of arms have been generated successfully by the designed scanner and it proves that this scanner is a potential solution for designing and manufacturing the prosthetic leg. The graphs of errors in the main part show that the error is small which is in an acceptable range.