DocumentCode :
1672978
Title :
Segmentation of Knee Joints Based on Improved Multiphase Chan-Vese Model
Author :
Jiang, Jianguo ; Guo, Yanrong ; Zhan, Shu ; Li, Hong
Author_Institution :
Hefei Univ. of Technol., Hefei
fYear :
2008
Firstpage :
2418
Lastpage :
2422
Abstract :
In this paper, we propose a modified multiphase Chan-Vese model which is applied to the medical image segmentation of knee joints. Firstly, according to the anatomical structures and intensity distributions of knee joints in horizontal section, we present a new energy functional to keep the evolving curves just as the same relative location as the initial ones. This measure corrects the mistakes during segmentation and ensures the veracity of segmentation results. Then another interior energy term is introduced to keep the evolving curves close to the signed distance functions. In this way, re-initialization which is time- consuming and necessary in traditional Chan-Vese model, is never required and the convergence of segmentations becomes rapidly and smoothly. The implements and results of segmenting knee joints in MRI and CT validate the effectiveness and efficiency of our approach, compared to the original multiphase Chan-Vese model.
Keywords :
biomedical MRI; computerised tomography; image segmentation; medical image processing; CT; MRI; anatomical structures; energy functional; knee joints; medical image segmentation; multiphase Chan-Vese model; Anatomical structure; Biomedical imaging; Computed tomography; Deformable models; Image segmentation; Joints; Knee; Level set; Magnetic resonance imaging; Medical diagnostic imaging;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Bioinformatics and Biomedical Engineering, 2008. ICBBE 2008. The 2nd International Conference on
Conference_Location :
Shanghai
Print_ISBN :
978-1-4244-1747-6
Electronic_ISBN :
978-1-4244-1748-3
Type :
conf
DOI :
10.1109/ICBBE.2008.937
Filename :
4535817
Link To Document :
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