Colored visualization of shape differences between bones

• Presented at: CBMS 2003, New York, NY, United States, 26-27 June
• Published in: Proceedings CBMS 2003 (ISSN: 1063-7125)
• Institute of Electrical and Electronics Engineers Computer Society, 2003

This article addresses visualization of deformation or shape differences between bones while conventional visualization techniques are often about a single bone such as its 3D reconstruction. Given a pair of bones with a set of corresponding anatomical landmarks, we compute displacement vectors describing the deformation from one bone to the other at the landmark points on one of the bones. Out of these prescribed ones, a displacement vector at each vertex on the bone surface is derived using a multi-level approximation technique of scattered data. Based on the value of inner product between a displacement vector and a surface normal at each vertex, color is mapped. Considering error-prone estimation of the landmark location in real applications, approximations at different levels are realized instead of exact interpolation as usually done in elastic image registration. Experimental results on a pair of femoral bones are presented.

Keywords: Bone ; Color image processing ; Three dimensional computer graphics ; Image reconstruction ; Vectors ; Error correction ; Interpolation ; Approximation theory

Note:

Virtual Reality Lab (VRlab), Swiss Fed. Inst. of Technol. (EPFL), CH-1015 Lausanne, Switzerland

Reference

• VRLAB-CONF-2003-012
• View record in Web of Science

Record created on 2007-01-16, modified on 2017-05-12