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ISBI
2008
IEEE

Adaptive non-rigid registration of 3D knee MRI in different pose spaces

9 years 11 months ago
Adaptive non-rigid registration of 3D knee MRI in different pose spaces
Volume registration of articulated subjects such as the human knee region requires novel methods to accommodate the wide range of movement resulting from skeletal joint rotations. This paper addresses articulated volume deformation with a pair of techniques. Volume skeletal deformation (VSD) is applied first, producing a smooth but approximate deformation of the soft tissue as the underlying skeleton moves, while preserving rigid motion in the segmented bone regions. The resulting deformed volume is used as initialization for a nonrigid deformation step that locally and adaptively adds radial basis function control points to minimize the remaining registration error in any poorly aligned region. The resulting process registers a neutral pose volume to any given bent-knee pose MRI scan.
Taehyun Rhee, John P. Lewis, Krishna Nayak, Ulrich
Added 20 Nov 2009
Updated 20 Nov 2009
Type Conference
Year 2008
Where ISBI
Authors Taehyun Rhee, John P. Lewis, Krishna Nayak, Ulrich Neumann
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