Image reconstruction using the wavelet transform for positron emission tomography

被引：27

作者：

Choi, Y

Koo, JY ^{[1
]}

Lee, NY

机构：

[1] Hallym Univ, Dept Stat, Chunchon 200702, Kangwon Do, South Korea

[2] Sungkyunkwan Univ, Sch Med, Samsung Med Ctr, Dept Nucl Med, Seoul 135710, South Korea

[3] Korea Adv Inst Sci & Technol, Div Appl Math, Taejon 305701, South Korea

来源：

IEEE TRANSACTIONS ON MEDICAL IMAGING | 2001年 / 20卷 / 11期

关键词：

positron emission tomography; image reconstruction; wavelet-vagulelette decomposition; wavelet shrinkage;

D O I：

10.1109/42.963822

中图分类号：

TP39 [计算机的应用];

学科分类号：

081203 ; 0835 ;

摘要：

We conducted positron emission tomography (PET) image reconstruction experiments using the wavelet transform. The Wavelet-Vaguelette decomposition was used as a framework from which expressions for the necessary wavelet coefficients might be derived, and then the wavelet shrinkage was applied to the wavelet coefficients for the reconstruction (WVS). The performances of WVS were evaluated and compared with those of the filtered back-projection (FBP) using software phantoms, physical phantoms, and human PET studies. The results demonstrated that WVS gave stable reconstruction over the range of shrinkage parameters and provided better noise and spatial resolution characteristics than FBP.

引用

页码：1188 / 1193

页数：6

共 15 条

[1] THE TRANSFORMATION OF POISSON, BINOMIAL AND NEGATIVE-BINOMIAL DATA [J].