Efficient Segmentation Algorithm for 3D Bone Models Construction on Medical Images

Chung-Yi Huang ； Lai-Jun Luo ； Pei-Yuan Lee ； Jiing-Yih Lai ； Wen-Teng Wang ； Shang-Chih Lin

《Journal of Medical and Biological Engineering》 31卷6期 (2011/12) Pp. 375-386

並列摘要

Three-dimensional (3D) surface construction from computed tomography (CT) slices has received extensive attention as many biomechanical analyses and designs rely on the development of a reliable 3D model. This study proposes a method for constructing the triangular models of anatomic structures from two-dimensional slices of CT images. A region growing algorithm is developed for the segmentation of the volume data. Each voxel on the volume data represents a pixel of 3D images. A modified marching cubes algorithm, a 3D reconstruction algorithm, is then employed to establish the triangular model. Problems caused by imprecise image data are mitigated. In addition, a data reduction algorithm that combines a pair of voxels along each coordinate direction is developed, in which piecewise linear interpolation is implemented to maintain the accuracy of the reduced model. Several examples are presented to demonstrate the feasibility of the proposed method.

並列關鍵字

3D bone model ； 3D bone reconstruction ； CT images ； Image segmentation ； Region growing ； Constrained region growing