Title: Performance of Landweber iteration algorithm in tomographic image reconstruction

Authors: B.S. Sathishkumar; G. Nagarajan

Addresses: Research Scholar, Department of ECE, Pondicherry Engineering College, Puducherry 605 014, India; A.V.C. College of Engineering, Mannampandal, Mayiladuthurai, Tamilnadu 609 305, India ' Department of ECE, Pondicherry Engineering College, Puducherry 605 014, India

Abstract: The rapid growth of computed tomography has been accompanied by equally advancing in image reconstruction algorithm also. The fundamental inverse problem is the reconstruction of a function from finitely many measurements, so pertaining to that function. The measured data are limited, and it cannot serve to determine one single correct solution. The iterative reconstruction image reconstruction algorithms have stable solution to the limited projection. In this paper, Landweber-based iteration image reconstruction is simulated and its performance is compared with different algorithm. Then, the quality of the reconstructed image is expressed in terms of mean absolute error and correlation coefficient as compared to the original image. The entire simulations are performed in Matlab tool.

Keywords: computed tomography; image reconstruction; iterative reconstruction; Landweber algorithm; limited projection.

DOI: 10.1504/IJIM.2017.085318

International Journal of Image Mining, 2017 Vol.2 No.3/4, pp.292 - 300

Received: 26 May 2016
Accepted: 28 Dec 2016
Published online: 21 Jul 2017 *

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