کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
504597 864319 2007 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A generalized diffusion based inter-iteration nonlinear bilateral filtering scheme for PET image reconstruction
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر نرم افزارهای علوم کامپیوتر
پیش نمایش صفحه اول مقاله
A generalized diffusion based inter-iteration nonlinear bilateral filtering scheme for PET image reconstruction
چکیده انگلیسی

In this paper, a new inter-iteration filtering scheme based on diffusion Maximum a Posteriori (MAP) estimation for Positron emission tomography (PET) image reconstruction is proposed. This is achieved by gaining the insights into the classical MAP iteration (e.g. the ‘one-step-late’ algorithm, OSL) and the several well-established approximations to the diffusion process. We show that such a new technique allows additional insight and sufficient flexibility for further investigations on some nonlinear filters based reconstruction algorithms. In particular, we suggest the bilateral filter as a nice application in which image smoothing while edge preserving can be readily obtained by the combination of the range and domain filters. The feasibility and efficiency of the proposed method are verified in the substantiating experiments conducted on both the computer simulated and real clinical data.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Computerized Medical Imaging and Graphics - Volume 31, Issue 6, September 2007, Pages 447–457
نویسندگان
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