کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
8175892 1526366 2014 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Bin mode estimation methods for Compton camera imaging
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم ابزار دقیق
پیش نمایش صفحه اول مقاله
Bin mode estimation methods for Compton camera imaging
چکیده انگلیسی
We study the image reconstruction problem of a Compton camera which consists of semiconductor detectors. The image reconstruction is formulated as a statistical estimation problem. We employ a bin-mode estimation (BME) and extend an existing framework to a Compton camera with multiple scatterers and absorbers. Two estimation algorithms are proposed: an accelerated EM algorithm for the maximum likelihood estimation (MLE) and a modified EM algorithm for the maximum a posteriori (MAP) estimation. Numerical simulations demonstrate the potential of the proposed methods.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment - Volume 760, 1 October 2014, Pages 46-56
نویسندگان
, , , , , ,