AI RESEARCH
CT-Guided Spatially-varying Regularization for Voxel-Wise Deformable Whole-Body PET Registration
arXiv CS.CV
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ArXi:2604.22905v1 Announce Type: cross Whole-body Positron Emission Tomography (PET) registration is essential for multi-parametric tumor characterization and assessment of metastatic disease progression. In deep learning-based deformable registration, the dense displacement field (DDF) regularizer is crucial for stabilizing optimization and preventing unrealistic deformations in large 3D volumes.