کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
504552 | 864315 | 2008 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Noniterative sequential weighted least squares algorithm for positron emission tomography reconstruction
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی کامپیوتر
نرم افزارهای علوم کامپیوتر
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Noniterative sequential weighted least squares algorithm for positron emission tomography reconstruction Noniterative sequential weighted least squares algorithm for positron emission tomography reconstruction](/preview/png/504552.png)
چکیده انگلیسی
This paper proposes a new sequential weighted least squares (SWLS) method for positron emission tomography (PET) reconstruction. The SWLS algorithm is noniterative and can be considered as equivalent to the penalized WLS (PWLS) method under certain initial conditions. However, a full implementation of SWLS is computationally intensive. To overcome this problem, we propose a simplified SWLS as a reasonable alternative to the SWLS. The performance of this SWLS method is evaluated in experiments using both simulated and clinical data. The results show that the method can be advantageously compared with the original SWLS both in computation time and reconstruction quality.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Computerized Medical Imaging and Graphics - Volume 32, Issue 8, December 2008, Pages 710–719
Journal: Computerized Medical Imaging and Graphics - Volume 32, Issue 8, December 2008, Pages 710–719
نویسندگان
Jian Zhou, Jean-Louis Coatrieux, Limin Luo,