Registration of 3D shapes under anisotropic scaling
Published in International Journal of Computer Assisted Radiology and Surgery, 2015
Recommended citation: Chen ECS, McLeod AJ, Baxter JS, Peters TM, (2015). "Registration of 3D shapes under anisotropic scaling"; in International Journal of Computer Assisted Radiology and Surgery, 10(6), pp. 867-878. https://doi.org/10.1007/s11548-015-1199-9
Several medical imaging modalities exhibit inherent scaling among the acquired data: The scale in an ultrasound image varies with the speed of sound and the scale of the range data used to reconstruct organ surfaces is subject to the scanner distance. In the context of surface-based registration, these scaling factors are often assumed to be isotropic, or as a known prior. Accounting for such anisotropies in scale can potentially dramatically improve registration and calibrations procedures that are essential for robust image-guided interventions.