We examine tissue deformations using non-invasive dynamic musculoskeletal ultrasonograhy, and quantify its performance on controlled in vitro gold standard (groundtruth) sequences followed by clinical in vivo data. The proposed approach employs a two-dimensional variable-sized block matching algorithm with a hierarchical full search. We extend this process by refining displacements to sub-pixel accuracy. We show by application that this technique yields quantitatively reliable results.
|Translated title of the contribution||Musculoskeletal motion flow fields using hierarchical variable-sized block matching in ultrasonographic video sequences|
|Pages (from-to)||511 - 522|
|Number of pages||11|
|Journal||Journal of Biomechanics|
|Publication status||Published - Apr 2004|