@article{discovery1540772, month = {March}, number = {3}, year = {2018}, title = {Recovering Functional Mechanical Assemblies from Raw Scans.}, journal = {IEEE Transactions on Visualization and Computer Graphics}, volume = {24}, note = {{\copyright} 2016 IEEE. This version is the author accepted manuscript. For information on re-use, please refer to the publisher's terms and conditions.}, pages = {1354--1367}, keywords = {Geometry, Shape, Gears, Motion segmentation, Parametric statistics, Fabrication, Three-dimensional displays}, url = {http://doi.org/10.1109/TVCG.2017.2662238}, author = {Lin, M and Shao, T and Zheng, Y and Mitra, N and Zhou, K}, issn = {1941-0506}, abstract = {This paper presents a method to reconstruct a functional mechanical assembly from raw scans. Given multiple input scans of a mechanical assembly, our method first extracts the functional mechanical parts using a motion-guided, patch-based hierarchical registration and labeling algorithm. The extracted functional parts are then parameterized from the segments and their internal mechanical relations are encoded by a graph. We use a joint optimization to solve for the best geometry, placement, and orientation of each part, to obtain a final workable mechanical assembly. We demonstrated our algorithm on various types of mechanical assemblies with diverse settings and validated our output using physical fabrication.} }