Point-cloud registration using adaptive radial basis functions

Ju Zhang, David Ackland and Justin Fernandez

Computer Methods in Biomechanics and Biomedical Engineering, 2018, vol. 21, issue 7, 498-502

Abstract: Non-rigid registration is a common part of bioengineering model-generation workflows. Compared to common mesh-based methods, radial basis functions can provide more flexible deformation fields due to their meshless nature. We introduce an implementation of RBF non-rigid registration with iterative knot-placement to adaptively reduce registration error. The implementation is validated on surface meshes of the femur, hemi-pelvis, mandible, and lumbar spine. Mean registration surface errors ranged from 0.37 to 0.99 mm, Hausdorff distance from 1.84 to 2.47 mm, and DICE coefficients from 0.97 to 0.99. The implementation is available for use in the free and open-source GIAS2 library.

Date: 2018
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DOI: 10.1080/10255842.2018.1484914

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