Level set evolution for boundary extraction based on a p-Laplace equation

被引：33
|
作者：
Zhou, Bin [1 ,2 ]
Mu, Chun-Lai [1 ]
机构：
[1] Sichuan Univ, Coll Math, Chengdu 610065, Peoples R China
[2] Xian Univ Sci & Technol, Coll Sci, Xian 710054, Peoples R China
来源：
APPLIED MATHEMATICAL MODELLING | 2010年 / 34卷 / 12期
关键词：
Boundary extraction; p-Laplace equation; Variational level set method; Sign distance function; Topology changes; Boundary indicator function; ACTIVE CONTOURS; SHAPE; MODEL;
D O I：
10.1016/j.apm.2010.04.003
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
This paper presents a new approach to boundary extraction. We represent the object boundary by a level set model that is embedded in several scalar functions. The motion of the dynamic interface is governed by a p-Laplace equation. Such level set models are flexible in handling complex topological changes and are concise in extracting object boundaries despite of deep depression. Furthermore, a relatively smooth evolution can be maintained without re-initialization. The cost of this method is moderate. The accuracy and efficiency of the proposed algorithm are illustrated by several numerical examples. (C) 2010 Elsevier Inc. All rights reserved.
引用
收藏
页码：3910 / 3916
页数：7
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