Local voxelizer A shape descriptor for surface re

Authors: Peng Song

Publish Date: 2015/10/21

Volume: 1, Issue: 4, Pages: 279-289

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Abstract

Surface registration brings multiple scans into a common coordinate system by aligning their overlapping components This can be achieved by finding a few pairs of matched points on different scans using local shape descriptors and employing the matches to compute transformations to produce the alignment By defining a unique local reference frame LRF and attaching an LRF to shape descriptors the transformation can be computed using only one match based on aligning the LRFs This paper proposes a local voxelizer descriptor and the key ideas are to define a unique LRF using the support around a basis point to perform voxelization for the local shape within a cubical volume aligned with the LRF and to concatenate local features extracted from each voxel to construct the descriptor An automatic rigid registration approach is given based on the local voxelizer and an expanding strategy that merges descriptor representations of aligned scans Experiments show that our registration approach allows the acquisition of 3D models of various objects and that the local voxelizer is robust to mesh noise and varying mesh resolution in comparison to two stateoftheart shape descriptorsPeng Song is an associate professor in School of Computer Science and Technology University of Science and Technology of China He received his BS degree from Harbin Institute of Technology 2007 MS degree from Harbin Institute of Technology Shenzhen Graduate School 2010 and PhD degree from Nanyang Technological University Singapore 2013 His research interests lie on computer graphics computer vision and humancomputer interactionThis article is published under an open access license Please check the Copyright Information section for details of this license and what reuse is permitted If your intended use exceeds what is permitted by the license or if you are unable to locate the licence and reuse information please contact the Rights and Permissions team

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