October 2013

Hybrid filters for medical image reconstruction

The most significant feature of diagnostic medical images is to reduce Gaussian noise, and salt and pepper noise which is commonly found in medical images and make better image quality. In recent years, technological development has significantly improved analyzing medical imaging. This paper proposes different hybrid filtering techniques for the removal of Gaussian noise, and salt and pepper noise. The filters are...

Author(s): S. Vijaya Kumar

October 2013

L-stable implicit trapezoidal-like integrators for the solution of parabolic partial differential equations on manifolds

A new Trapezoidal-type scheme is proposed for the direct numerical integration of time-dependent partial differential equations. The evolving system of ordinary differential equations after discretization is usually stiff, so it is desirable for the use of a numerical method in solving it to have good properties concerning stability. The method proposed in this article is L-stable and at least of algebraic order two. It...

Author(s): Johnson Oladele Fatokun and Akpan, I. P.