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Structural Affinity: A Regularization Algorithm for Cage-Based Shape Design

Structural Affinity is an explicit regularization method for cage-based deformation (CBD). It uses a two-cage structure and an affinity matrix precomputed with mean-value coordinates to couple the motion of inner and outer control cages, so that control handle displacements propagate smoothly to neighboring handles, greatly reducing and often eliminating cage self-intersection and mesh distortion, while adding only linear overhead during deformation.

Part of the event: Proposes cage-based deformation structural affinity regularization algorithm

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