کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4602354 1631167 2008 21 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Constrained Kaczmarz extended algorithm for image reconstruction
موضوعات مرتبط
مهندسی و علوم پایه ریاضیات اعداد جبر و تئوری
پیش نمایش صفحه اول مقاله
Constrained Kaczmarz extended algorithm for image reconstruction
چکیده انگلیسی

In this paper, we present a constrained version of Kaczmarz extended algorithm for improving image reconstruction from projections in computerized tomography. We prove convergence of our algorithm in the general inconsistent case to a “constrained” least squares solution of the reconstruction problem, under weaker hypothesis than those proposed in a previous paper by Koltracht and Lancaster for classical Kaczmarz’s projection method. Numerical experiments and comparisons are also presented on some model problems from the field of electromagnetic geotomography.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Linear Algebra and its Applications - Volume 429, Issues 8–9, 16 October 2008, Pages 2247-2267