3D local measurements of bone strain and displacement: comparison of three digital volume correlation approaches
Research output: Contribution to journal › Article › peer-review
This study aimed to compare accuracy and precision errors of three Digital Volume Correlation (DVC) approaches in a particular 3D zero-strain condition for both trabecular and cortical bone specimens, imaged repeatedly using micro-CT. Both scalar average errors and errors affecting the individual components of displacements and strains were calculated. For each DVC approach, errors decreased asymptotically for larger sub-volume sizes in the range explored. Considering this particular set of images, the global approach (ShIRT-FE) showed an overall better accuracy and precision than the local ones (DaVis). The latter show reasonable results for large nodal spacing, particularly for trabecular bone.
|Number of pages||14|
|Journal||Journal of Biomechanical Engineering|
|Early online date||2 Jun 2015|
|Publication status||Published - Jul 2015|