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Indexed by:期刊论文

Date of Publication:2012-08-25

Journal:Applied Mechanics and Materials

Included Journals:EI、CPCI-S、Scopus

Volume:195-196

Page Number:534-538

ISSN No.:9783037854693

Key Words:CT images; Level set method; speed function; outermost surface extraction

Abstract:Outward directed surface extraction from imaging modalities is the first task in the design of implants. In this paper a method based on level set method is proposed to extract the directed surface from CT images. The process is composed of two steps. In the first step, Level Set method with a new speed function is employed to evolve zero level set to its destination and used to cut the desired bone part from the input CT images. In the second step, a simple method is used to extract the directed surface, usually the outward surface, from the separated bone part by removing the interior surface. The experimental results show the proposed method works well.