دورية أكاديمية
Statistical 3d vessel segmentation using a rician distribution
| العنوان: | Statistical 3d vessel segmentation using a rician distribution |
|---|---|
| المؤلفون: | Albert C. S. Chung, J. Alison Noble |
| المساهمون: | The Pennsylvania State University CiteSeerX Archives |
| المصدر: | http://www.cs.ust.hk/~achung/miccai99_chung_noble.pdfTest. |
| بيانات النشر: | Springer |
| سنة النشر: | 1999 |
| المجموعة: | CiteSeerX |
| مصطلحات موضوعية: | PC/TOF MRA, Vessel Segmentation, EM Algorithm, GDC (Guglielmi Detachable Coil) Treatment, Endovascular Treatment of Intracranial Aneurysms, Neuorology |
| الوصف: | This paper presents an extended version of the fully automated 3D cerebral vessel reconstruction algorithm developed by Wilson and Noble [11] which is applicable to time-of-flight (TOF) and phase contrast (PC) magnetic resonance angiography (MRA) images. We introduce a Rician distribution for background noise modelling and use a modified EM (Expectation-Maximisation) algorithm for the parameter estimation procedure. The proposed algorithm is applied to PC-MRA images. It is shown that the estimated Rician distribution gives a better quality-of-fit to the observed background noise distribution than a Gaussian distribution. In the experiments reported, the segmented 3D vasculature is shown to be qualitatively comparable with the results obtained from higher resolution TOF MRA images. |
| نوع الوثيقة: | text |
| وصف الملف: | application/pdf |
| اللغة: | English |
| العلاقة: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.75.2885Test; http://www.cs.ust.hk/~achung/miccai99_chung_noble.pdfTest |
| الإتاحة: | http://www.cs.ust.hk/~achung/miccai99_chung_noble.pdfTest |
| حقوق: | Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
| رقم الانضمام: | edsbas.A74C9B79 |
| قاعدة البيانات: | BASE |
| الوصف غير متاح. |