3D multi-scale level set segmentation of vertebrae

被引：11

作者：

Tan, Sovira ^{[1
]}

Yao, Jianhua ^{[1
]}

Ward, Michael M. ^{[1
]}

Yao, Lawrence ^{[1
]}

Summers, Ronald M. ^{[1
]}

机构：

[1] NIH, Ctr Clin, Bethesda, MD 20892 USA

来源：

2007 4TH IEEE INTERNATIONAL SYMPOSIUM ON BIOMEDICAL IMAGING : MACRO TO NANO, VOLS 1-3 | 2007年

关键词：

segmentation; multi-scale; level set; vertebra;

D O I：

10.1109/ISBI.2007.356997

中图分类号：

TP18 [人工智能理论];

学科分类号：

081104 ; 0812 ; 0835 ; 1405 ;

摘要：

We present a 3D multi-scale segmentation algorithm for vertebrae based on a cascade of level sets. We validated the performance of the algorithm in terms of accuracy, robustness and speed and compared it with its original single-scale version using a synthetic vertebra and a semi-synthetic one containing natural structured noise. The multi-scale algorithm was found to be 4 to 5 times faster and could be half a voxel more accurate than the single-scale algorithm. Synthetic vertebrae also allowed us to try a large number of level set parameters. Analysis of the results revealed trends about parameter combinations leading to leakage or under-segmentation. After selecting a good set of parameters we tested the algorithm on 50 real vertebrae. The success rates were 90% and 80% respectively for the multi-scale and single-scale algorithms.

引用

页码：896 / 899

页数：4

共 8 条

[1] Geodesic active contours [J].

Caselles, V ;

Kimmel, R ;

Sapiro, G .

INTERNATIONAL JOURNAL OF COMPUTER VISION, 1997, 22 (01) :61-79

[2]

Descoteaux M, 2004, LECT NOTES COMPUT SC, V3216, P500

[3]

Ibanez L, 2003, ITK SOFTWARE GUIDE

[4]

KRISSIAN K, 2003, EMBS, P638

[5]

Lin N, 2002, LECT NOTES COMPUT SC, V2488, P682

[6]

Press W. H., 1992, NUMERICAL RECIPES C, V2nd ed., P994

[7]

SETHIAN J. A., 1999, LEVEL SET METHODS FA

[8]

TAN S, 2006, P SPIE MED IMAGING, V6144, P58

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