変位のなめらかさを考慮した臓器形状マッチング手法の提案

Abstract

In shape matching of organs with large deformation, to obtain correct correspondence is a problem. To address this issue, model-based shape matching is recently explored, however, stable update of model vertices is needed to match distant structures. This study proposes a shape matching method of organs considering smoothness of displacement. A concept of differential displacement field is introduced for improving Laplacian-based shape matching techniques. Experimental results showed that the proposed methods reduced the error of point-to-point correspondence.